Science.gov

Sample records for cesium 144

  1. NPB Cesium Space Experiment

    NASA Technical Reports Server (NTRS)

    Parsons, George M., III

    1992-01-01

    Neutral Particle Beam (NPB) weapons systems are planned to perform the ballistic missile defense functions of nuclear weapon/decoy discrimination and warhead kill at appropriate energy levels and ion currents. Negatively charged ions are produced in a specialized ion source and focused into a high quality particle beam. NPB linear accelerators accelerate and steer the negatively charged ions using electric and magnetic fields. After acceleration and steering the neutralizer system strips away extra electrons from ions to form the electrically neutral particle beam. The neutral beam then travels through space to the target unaffected by the Earth's magnetic fields. Continuing technological advances have greatly reduced the size and weight of NPB accelerator systems. Ion current production has been enhanced by over 100 percent with the intermittent addition of cesium at the NPB ion source device. This increase in current is essential to attain the most light weight, compact NPB platforms and minimize expensive launch costs. Addition of cesium into the ion source has been identified by the NPB community as the highest priority risk reduction space experiment necessary prior to planned NPB accelerator experiments and later weapons systems. The NPB Cesium Space Experiment is planned to successfully demonstrate controlled cesium introduction and vaporization into a simulated ion source chamber. Microgravity effects on the cesium deposition will be studied as will the effects of small amounts of cesium on high voltage accelerator components that might be susceptible to electrical insulator break downs. The experiment design will simulate as closely as possible the environment, physical and operational characteristics of the actual NPB ion source.

  2. Methods of producing cesium-131

    SciTech Connect

    Meikrantz, David H; Snyder, John R

    2012-09-18

    Methods of producing cesium-131. The method comprises dissolving at least one non-irradiated barium source in water or a nitric acid solution to produce a barium target solution. The barium target solution is irradiated with neutron radiation to produce cesium-131, which is removed from the barium target solution. The cesium-131 is complexed with a calixarene compound to separate the cesium-131 from the barium target solution. A liquid:liquid extraction device or extraction column is used to separate the cesium-131 from the barium target solution.

  3. Recovery of cesium

    DOEpatents

    Izatt, Reed M.; Christensen, James J.; Hawkins, Richard T.

    1984-01-01

    A process of recovering cesium ions from mixtures of ions containing them and other ions, e.g., a solution of nuclear waste materials, which comprises establishing a separate source phase containing such a mixture of ions, establishing a separate recipient phase, establishing a liquid membrane phase in interfacial contact with said source and recipient phases, said membrane phase containing a ligand, preferably a selected calixarene as depicted in the drawing, maintaining said interfacial contact for a period of time long enough to transport by said ligand a substantial portion of the cesium ion from the source phase to the recipient phase, and recovering the cesium ion from the recipient phase. The separation of the source and recipient phases may be by the membrane phase only, e.g., where these aqueous phases are emulsified as dispersed phases in a continuous membrane phase, or may include a physical barrier as well, e.g., an open-top outer container with an inner open-ended container of smaller cross-section mounted in the outer container with its open bottom end spaced from and above the closed bottom of the outer container so that the membrane phase may fill the outer container to a level above the bottom of the inner container and have floating on its upper surface a source phase and a recipient phase separated by the wall of the inner container as a physical barrier. A preferred solvent for the ligand is a mixture of methylene chloride and carbon tetrachloride.

  4. Clinical effects of cesium intake.

    PubMed

    Melnikov, Petr; Zanoni, Lourdes Zélia

    2010-06-01

    The knowledge about cesium metabolism and toxicity is sparse. Oral intake of cesium chloride has been widely promoted on the basis of the hypothesis referred to as "high pH cancer therapy", a complimentary alternative medicine method for cancer treatment. However, no properly confirmed tumor regression was reported so far in all probability because of neither theoretical nor experimental grounds for this proposal. The aim of the present review was to resume and discuss the material currently available on cesium salts and their applications in medicine. The presence of cesium in the cell does not guarantee high pH of its content, and there is no clinical evidence to support the claims that cancer cells are vulnerable to cesium. Cesium is relatively safe; signs of its mild toxicity are gastrointestinal distress, hypotension, syncope, numbness, or tingling of the lips. Nevertheless, total cesium intakes of 6 g/day have been found to produce severe hypokalemia, hypomagnesemia, prolonged QTc interval, episodes of polymorphic ventricular tachycardia, with or without torsade de pointes, and even acute heart arrest. However, full information on its acute and chronic toxicity is not sufficiently known. Health care providers should be aware of the cardiac complications, as a result of careless cesium usage as alternative medicine.

  5. Metals fact sheet--cesium

    SciTech Connect

    1997-03-01

    Cesium, the most alkaline and electropositive metal, is used by several industries for a variety of applications, including chemical catalysis, biomedical, photoelectrical, and glass manufacturing. While the traditional market for cesium has remained small, potential growth areas exist in the chemical catalysis and the oil and gas industry.

  6. Cesium cation affinities and basicities

    NASA Astrophysics Data System (ADS)

    Gal, Jean-François; Maria, Pierre-Charles; Massi, Lionel; Mayeux, Charly; Burk, Peeter; Tammiku-Taul, Jaana

    2007-11-01

    This review focuses on the quantitative data related to cesium cation interaction with neutral or negatively charged ligands. The techniques used for measuring the cesium cation affinity (enthalpies, CCA), and cesium cation basicities (Gibbs free energies, CCB) are briefly described. The quantum chemical calculations methods that were specifically designed for the determination of cesium cation adduct structures and the energetic aspects of the interaction are discussed. The experimental results, obtained essentially from mass spectrometry techniques, and complemented by thermochemical data, are tabulated and commented. In particular, the correlations between cesium cation affinities and lithium cation affinities for the various kinds of ligands (rare gases, polyatomic neutral molecules, among them aromatic compounds and negative ions) serve as a basis for the interpretation of the diverse electrostatic modes of interaction. A brief account of some recent analytical applications of ion/molecule reactions with Cs+, as well as other cationization approaches by Cs+, is given.

  7. Cesium in hydrogen negative-ion sources

    SciTech Connect

    Belchenko, Yu.I.; Davydenko, V.I.

    2006-03-15

    Experimental data on the dynamics of cesium particles in the pulsed magnetron and Penning surface-plasma ion sources are presented. Cesium escape from the source emission apertures and the cesium ion current to discharge electrodes was measured. The low value of cesium flux from the source was detected. An intense cesium ion current to the cathode (up to 0.8 A/cm{sup 2}) was measured. The high value of cesium ion current to surface-plasma source cathode confirms the cesium circulation near the cathode.

  8. New closed system integral cesium reservoir

    NASA Astrophysics Data System (ADS)

    Rhee, Hyop S.; Britt, Edward J.; Kim, Kwang Y.; Kennel, Elliot B.

    Attention is given to the lead-cesium solution reservoir concept, according to which the cesium reservoir is in the form of a gas-buffered heat pipe, such that the cesium pressure will remain roughly constant over a wide range of input temperature flux. This concept carries fission gases from the cesium. Experimental data show that adequate cesium pressure control is facilitated by a lead-cesium solution at the collector operating temperature of the thermionic fuel elements (TFEs). If the performance and material compatibility issues are resolved, the lead-cesium reservoir could offer great benefits in terms of simplicity and reduction of TFE manufacturing costs.

  9. Mineral resource of the month: cesium

    USGS Publications Warehouse

    Angulo, Marc A.

    2010-01-01

    The article offers information on cesium, a golden alkali metal derived from the Latin word caesium which means bluish gray. It mentions that cesium is the first element discovered with the use of spectroscopy. It adds that the leading producer and supplier of cesium is Canada and there are 50,000 kilograms of cesium consumed of the world in a year. Moreover, it states that only 85% of the cesium formate can be retrieved and recycled.

  10. Cesium diffusion in graphite

    SciTech Connect

    Evans, R.B. III; Davis, W. Jr.; Sutton, A.L. Jr.

    1980-05-01

    Experiments on diffusion of /sup 137/Cs in five types of graphite were performed. The document provides a completion of the report that was started and includes a presentation of all of the diffusion data, previously unpublished. Except for data on mass transfer of /sup 137/Cs in the Hawker-Siddeley graphite, analyses of experimental results were initiated but not completed. The mass transfer process of cesium in HS-1-1 graphite at 600 to 1000/sup 0/C in a helium atmosphere is essentially pure diffusion wherein values of (E/epsilon) and ..delta..E of the equation D/epsilon = (D/epsilon)/sub 0/ exp (-..delta..E/RT) are about 4 x 10/sup -2/ cm/sup 2//s and 30 kcal/mole, respectively.

  11. METHOD OF PREPARING RADIOACTIVE CESIUM SOURCES

    DOEpatents

    Quinby, T.C.

    1963-12-17

    A method of preparing a cesium-containing radiation source with physical and chemical properties suitable for high-level use is presented. Finely divided silica is suspended in a solution containing cesium, normally the fission-product isotope cesium 137. Sodium tetraphenyl boron is then added to quantitatively precipitate the cesium. The cesium-containing precipitate is converted to borosilicate glass by heating to the melting point and cooling. Up to 60 weight percent cesium, with a resulting source activity of up to 21 curies per gram, is incorporated in the glass. (AEC)

  12. Cesium clocks keep the world on time

    SciTech Connect

    Hellwig, H.

    1985-09-01

    The development of timekeeping systems based on the natural resonance of cesium atoms is reviewed. The design of a typical cesium clock using a frequency lock servo is described. Some common applications of cesium beam frequency and time reference systems are discussed, including Navstar GPS navigation referencing; military satellite communications; and measurements of relative gravitational effects. The possibility of increasing timekeeping accuracies using improved cesium clock designs is evaluated.

  13. Method of removing cesium from steam

    DOEpatents

    Carson, Jr., Neill J.; Noland, Robert A.; Ruther, Westly E.

    1991-01-01

    Method for removal of radioactive cesium from a hot vapor, such as high temperature steam, including the steps of passing input hot vapor containing radioactive cesium into a bed of silicate glass particles and chemically incorporating radioactive cesium in the silicate glass particles at a temperature of at least about 700.degree. F.

  14. Process for cesium decontamination and immobilization

    DOEpatents

    Komarneni, Sridhar; Roy, Rustum

    1989-01-01

    Cesium can be selectively recovered from a nuclear waste solution containing cesium together with other metal ions by contact with a modified phlogopite which is a hydrated, sodium phlogopite mica. Once the cesium has entered the modified phlogopite it is fixed and can be safely stored for long periods of time.

  15. Process for cesium decontamination and immobilization

    DOEpatents

    Komarneni, S.; Roy, R.

    1988-04-25

    Cesium can be selectively recovered from a nuclear waste solution containing cesium together with other metal ions by contact with a modified phlogopite which is a hydrated, sodium phlogopite mica. Once the cesium has entered the modified phlogopite it is fixed and can be safely stored for long periods of time. 6 figs., 2 tabs.

  16. Cesium removal and kinetics equilibrium: Precipitation kinetics

    SciTech Connect

    Barnes, M.J.

    1999-12-17

    This task consisted of both non-radioactive and radioactive (tracer) tests examining the influence of potentially significant variables on cesium tetraphenylborate precipitation kinetics. The work investigated the time required to reach cesium decontamination and the conditions that affect the cesium precipitation kinetics.

  17. Cesium control and diagnostics in surface plasma negative ion sources

    SciTech Connect

    Dudnikov, Vadim; Chapovsky, Pavel; Dudnikov, Andrei

    2010-02-15

    For efficient and reliable negative ion generation it is very important to improve a cesium control and diagnostics. Laser beam attenuation and resonance fluorescence can be used for measurement of cesium distribution and cesium control. Resonant laser excitation and two-photon excitation can be used for improved cesium ionization and cesium trapping in the discharge chamber. Simple and inexpensive diode lasers can be used for cesium diagnostics and control. Cesium migration along the surface is an important mechanism of cesium escaping. It is important to develop a suppression of cesium migration and cesium accumulation on the extraction system.

  18. 40 CFR 144.33 - Area permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Area permits. 144.33 Section 144.33... INJECTION CONTROL PROGRAM Authorization by Permit § 144.33 Area permits. (a) The Director may issue a permit on an area basis, rather than for each well individually, provided that the permit is for...

  19. 40 CFR 144.33 - Area permits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Area permits. 144.33 Section 144.33... INJECTION CONTROL PROGRAM Authorization by Permit § 144.33 Area permits. (a) The Director may issue a permit on an area basis, rather than for each well individually, provided that the permit is for...

  20. 40 CFR 144.33 - Area permits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 24 2013-07-01 2013-07-01 false Area permits. 144.33 Section 144.33... INJECTION CONTROL PROGRAM Authorization by Permit § 144.33 Area permits. (a) The Director may issue a permit on an area basis, rather than for each well individually, provided that the permit is for...

  1. 40 CFR 144.33 - Area permits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 24 2012-07-01 2012-07-01 false Area permits. 144.33 Section 144.33... INJECTION CONTROL PROGRAM Authorization by Permit § 144.33 Area permits. (a) The Director may issue a permit on an area basis, rather than for each well individually, provided that the permit is for...

  2. 33 CFR 144.01-35 - Litter.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Litter. 144.01-35 Section 144.01-35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-35 Litter. On each...

  3. 10 CFR 600.144 - Procurement procedures.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Procurement procedures. 600.144 Section 600.144 Energy... Nonprofit Organizations Post-Award Requirements § 600.144 Procurement procedures. (a) All recipients shall establish written procurement procedures. These procedures shall provide for, at a minimum, that...

  4. 32 CFR 144.5 - Responsibilities.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 1 2013-07-01 2013-07-01 false Responsibilities. 144.5 Section 144.5 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE PERSONNEL, MILITARY AND CIVILIAN SERVICE BY MEMBERS OF THE ARMED FORCES ON STATE AND LOCAL JURIES § 144.5 Responsibilities. The Secretaries...

  5. 32 CFR 144.5 - Responsibilities.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 1 2011-07-01 2011-07-01 false Responsibilities. 144.5 Section 144.5 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE PERSONNEL, MILITARY AND CIVILIAN SERVICE BY MEMBERS OF THE ARMED FORCES ON STATE AND LOCAL JURIES § 144.5 Responsibilities. The Secretaries...

  6. 7 CFR 14.4 - Policy.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 1 2012-01-01 2012-01-01 false Policy. 14.4 Section 14.4 Agriculture Office of the Secretary of Agriculture DETERMINING THE PRIMARY PURPOSE OF CERTAIN PAYMENTS FOR FEDERAL TAX PURPOSES § 14.4 Policy. Federal tax, conservation, natural resource, and environmental policies should complement...

  7. 7 CFR 14.4 - Policy.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 1 2011-01-01 2011-01-01 false Policy. 14.4 Section 14.4 Agriculture Office of the Secretary of Agriculture DETERMINING THE PRIMARY PURPOSE OF CERTAIN PAYMENTS FOR FEDERAL TAX PURPOSES § 14.4 Policy. Federal tax, conservation, natural resource, and environmental policies should complement...

  8. 22 CFR 144.160 - Communications.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Communications. 144.160 Section 144.160 Foreign... PROGRAMS OR ACTIVITIES CONDUCTED BY THE UNITED STATES DEPARTMENT OF STATE § 144.160 Communications. (a) The agency shall take appropriate steps to ensure effective communication with applicants,...

  9. 22 CFR 144.160 - Communications.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Communications. 144.160 Section 144.160 Foreign... PROGRAMS OR ACTIVITIES CONDUCTED BY THE UNITED STATES DEPARTMENT OF STATE § 144.160 Communications. (a) The agency shall take appropriate steps to ensure effective communication with applicants,...

  10. 22 CFR 144.160 - Communications.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Communications. 144.160 Section 144.160 Foreign... PROGRAMS OR ACTIVITIES CONDUCTED BY THE UNITED STATES DEPARTMENT OF STATE § 144.160 Communications. (a) The agency shall take appropriate steps to ensure effective communication with applicants,...

  11. 10 CFR 600.144 - Procurement procedures.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ..., in 10 CFR part 1036, of E.O.'s 12549 and 12689, “Debarment and Suspension.” (e) Recipients shall, on... 10 Energy 4 2011-01-01 2011-01-01 false Procurement procedures. 600.144 Section 600.144 Energy... Nonprofit Organizations Post-Award Requirements § 600.144 Procurement procedures. (a) All recipients...

  12. 50 CFR 217.144 - Mitigation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 10 2014-10-01 2014-10-01 false Mitigation. 217.144 Section 217.144... the U.S. Beaufort Sea § 217.144 Mitigation. (a) When conducting the activities identified in § 217.140(a), the mitigation measures contained in the Letter of Authorization issued under §§ 216.106 and...

  13. 40 CFR 144.34 - Emergency permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Emergency permits. 144.34 Section 144...) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.34 Emergency permits. (a) Coverage... unless a temporary emergency permit is granted; or (2) A substantial and irretrievable loss of oil or...

  14. 40 CFR 144.55 - Corrective action.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 24 2012-07-01 2012-07-01 false Corrective action. 144.55 Section 144.55 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Permit Conditions § 144.55 Corrective action. (a) Coverage. Applicants for Class I, II, (other than...

  15. 22 CFR 144.140 - Employment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Opportunity Commission in 29 CFR part 1613, shall apply to employment in federally conducted programs or... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Employment. 144.140 Section 144.140 Foreign... PROGRAMS OR ACTIVITIES CONDUCTED BY THE UNITED STATES DEPARTMENT OF STATE § 144.140 Employment....

  16. 19 CFR 144.0 - Scope.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Scope. 144.0 Section 144.0 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS § 144.0 Scope. This part contains regulations...

  17. 40 CFR 415.144 - [Reserved

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 30 2013-07-01 2012-07-01 true 415.144 Section 415.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.144...

  18. 40 CFR 415.144 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 29 2011-07-01 2009-07-01 true 415.144 Section 415.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.144...

  19. 40 CFR 415.144 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 30 2012-07-01 2012-07-01 false 415.144 Section 415.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.144...

  20. 40 CFR 415.144 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 29 2014-07-01 2012-07-01 true 415.144 Section 415.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.144...

  1. 40 CFR 415.144 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 28 2010-07-01 2010-07-01 true 415.144 Section 415.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.144...

  2. 40 CFR 144.15 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false 144.15 Section 144.15 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements § 144.15...

  3. 7 CFR 14.4 - Policy.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Policy. 14.4 Section 14.4 Agriculture Office of the Secretary of Agriculture DETERMINING THE PRIMARY PURPOSE OF CERTAIN PAYMENTS FOR FEDERAL TAX PURPOSES § 14.4 Policy. Federal tax, conservation, natural resource, and environmental policies should complement...

  4. Cesium oxide-cesium solution as a source of cesium and oxygen.

    NASA Technical Reports Server (NTRS)

    Gunther, B.; Rufeh, F.; Pigford, T. H.

    1972-01-01

    Examination of the feasibility of using the solution as a source of cesium and oxygen, with description of an experimental system designed for a systematic investigation. Preliminary data are presented. Thermionic performance of the converter was recorded before the injection of oxygen at emitter temperatures of 1600, 1700, 1800, and 1900 K. The power of this converter, which had a polycrystalline tungsten emitter and a polycrystalline molybdenum collector, is compared with other converters. Experimental results show that cesium oxide mole factors higher than 0.18 are needed to achieve oxygen effects. It appears not to be necessary to be concerned about avoiding oxygen impurities in the cesium reservoir, since mole fractions as high as 0.18 have failed to influence the performance.

  5. CESIUM RECOVERY FROM AQUEOUS SOLUTIONS

    DOEpatents

    Goodall, C.A.

    1960-09-13

    A process is given for precipitating cesium on zinc ferricyanide (at least 0.0004 M) from aqueous solutions containing mineral acid in a concentration of from 0.2 N acidity to 0.61 N acid-deficiency and advantageously, but not necessarily, also aluminum nitrate in a concentration of from l to 2.5 M.

  6. Cesium Eluate Physical Property Determination

    SciTech Connect

    Baich, M.A.

    2001-02-13

    Two bench-scale process simulations of the proposed cesium eluate evaporation process of concentrating eluate produced in the Hanford Site Waste Treatment Plant were conducted. The primary objective of these experiments was to determine the physical properties and the saturation concentration of the eluate evaporator bottoms while producing condensate approximately 0.50 molar HN03.

  7. The cesium tetracyanoethylenide radical salt

    SciTech Connect

    Bock, H.; Ruppert, K. )

    1992-11-25

    The electron-acceptor molecule tetracyanoethylene, characterized by a multitude of data, is considered to be prototype charge-transfer complex ligand and is of actual interest as a counteranion in organic conductors and ferromagnets. Tetracyanoethylene (TCNE) reacts in aprotic dimethoxyethane solution with a cesium metal mirror to yield black crystals of [TCNE[sup [sm bullet][minus

  8. 7 CFR 4279.144 - Appraisals.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE GUARANTEED LOANMAKING Business and Industry Loans § 4279.144... and Materials. Chattels will be evaluated in accordance with normal banking practices and...

  9. Method for primary containment of cesium wastes

    DOEpatents

    Angelini, Peter; Lackey, Walter J.; Stinton, David P.; Blanco, Raymond E.; Bond, Walter D.; Arnold, Jr., Wesley D.

    1983-01-01

    A method for producing a cesium-retentive waste form, characterized by a high degree of compositional stability and mechanical integrity, is provided by subjecting a cesium-loaded zeolite to heat under conditions suitable for stabilizing the zeolite and immobilizing the cesium, and coating said zeolite for sufficient duration within a suitable environment with at least one dense layer of pyrolytic carbon to seal therein said cesium to produce a final, cesium-bearing waste form. Typically, the zeolite is stabilized and the cesium immobilized in less than four hours by confinement within an air environment maintained at about 600.degree. C. Coatings are thereafter applied by confining the calcined zeolite within a coating environment comprising inert fluidizing and carbon donor gases maintained at 1,000.degree. C. for a suitable duration.

  10. Cesium recovery from aqueous solutions

    DOEpatents

    Goodhall, C. A.

    1960-09-13

    A process for recovering cesium from aqueous solutions is given in which precipitation on zinc ferricyanide is used. The precipitation is preferably carried out in solutions containing at least 0.0004M zinc ferricyanide, an acidity ranging from 0.2N mineral acid to 0.61N acid deficiency, and 1 to 2.5M aluminum nitrate. (D.L.C.)

  11. Cesium standard for satellite application

    NASA Technical Reports Server (NTRS)

    Bloch, M. B.; Meirs, M.; Pascaru, I.; Weinstein, B.

    1983-01-01

    A Cesium frequency standard that was developed for satellite applications is discussed. It weighs 23 lbs. and uses 23.5 watts of power, achieves a stability of 1 x ten to the minus 13th power/100,000 seconds, and is radiation hardened. To achieve the weight and reliability requirements, both thick and thin film hybrid circuits were utilized. A crystal oscillator is used to improve short-term stability and performance on a moving platform.

  12. Unusual ligand coordination for cesium

    SciTech Connect

    Bryan, J.C.; Kavallieratos, K.; Sachleben, R.A.

    2000-04-03

    When complexed by tetrabenzo-24-crown-8, the cesium ion can accommodate unprecedented ligation. The structures of the complexes are presented. These structures are the first reported examples of linear {eta}{sup 2}-acetonitrile coordination to any metal ion and the first structures illustrating {eta}{sup 2}-acetonitrile and dichloromethane ligation to an alkali metal ion. Possible steric and electronic origins of these unusual metal-ligand interactions are discussed.

  13. Cesium-specific phenolic ion exchange resin

    DOEpatents

    Bibler, J.P.; Wallace, R.M.

    1995-08-15

    A phenolic, cesium-specific, cation exchange resin is prepared by neutralizing resorcinol with potassium hydroxide, condensing/polymerizing the resulting intermediate with formaldehyde, heat-curing the resulting polymer to effect cross-linking and grinding it to desired particle size for use. This resin will selectively and efficiently adsorb cesium ions in the presence of a high concentration of sodium ions with a low carbon to cesium ratio. 2 figs.

  14. Cesium-specific phenolic ion exchange resin

    DOEpatents

    Bibler, Jane P.; Wallace, Richard M.

    1995-01-01

    A phenolic, cesium-specific, cation exchange resin is prepared by neutralizing resorcinol with potassium hydroxide, condensing/polymerizing the resulting intermediate with formaldehyde, heat-curing the resulting polymer to effect cross-linking and grinding it to desired particle size for use. This resin will selectively and efficiently adsorb cesium ions in the presence of a high concentration of sodium ions with a low carbon to cesium ratio.

  15. Cesium heat-pipe thermostat

    SciTech Connect

    Wu, F.; Song, D.; Sheng, K.; Wu, J.; Yi, X.; Yu, Z.

    2013-09-11

    In this paper the authors report a newly developed Cesium Heat-Pipe Thermostat (Cs HPT) with the operation range of 400 °C to 800 °C. The working medium is cesium (Cs) of 99.98% purity and contains no radioisotope. A Cs filing device is developed which can prevent Cs being in contact with air. The structural material is stainless steel. A 5000 h test has been made to confirm the compatibility between cesium and stainless steel. The Cs HPT has several thermometer wells of 220mm depth with different diameters for different sizes of thermometers. The temperature uniformity of the Cs HPT is 0.06 °C to 0.20 °C. A precise temperature controller is used to ensure the temperature fluctuation within ±0.03 °C. The size of Cs HPT is 380mm×320mm×280mm with foot wheels for easy moving. The thermostat has been successfully used for the calibration of industrial platinum resistance thermometers and thermocouples.

  16. 9 CFR 354.144 - Advance information.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Advance information. 354.144 Section 354.144 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY INSPECTION AND CERTIFICATION VOLUNTARY INSPECTION...

  17. 9 CFR 354.144 - Advance information.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Advance information. 354.144 Section 354.144 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND...

  18. 21 CFR 522.144 - Arsenamide.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 21 Food and Drugs 6 2014-04-01 2014-04-01 false Arsenamide. 522.144 Section 522.144 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS... for 2 days. (2) Indications for use. For the treatment and prevention of canine heartworm...

  19. 14 CFR 1260.144 - Procurement procedures.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 5 2011-01-01 2010-01-01 true Procurement procedures. 1260.144 Section... Higher Education, Hospitals, and Other Non-Profit Organizations Procurement Standards § 1260.144 Procurement procedures. (a) All recipients shall establish written procurement procedures. These...

  20. 45 CFR 144.202 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Definitions. 144.202 Section 144.202 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE Qualified State Long-Term Care Insurance Partnerships:...

  1. 40 CFR 144.33 - Area permits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 23 2014-07-01 2014-07-01 false Area permits. 144.33 Section 144.33 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND... permittee to construct and operate, convert, or plug and abandon wells within the permit area provided:...

  2. 9 CFR 381.144 - Packaging materials.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 2 2013-01-01 2013-01-01 false Packaging materials. 381.144 Section 381.144 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND POULTRY PRODUCTS INSPECTION AND VOLUNTARY INSPECTION AND CERTIFICATION POULTRY...

  3. 14 CFR 1260.144 - Procurement procedures.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 5 2012-01-01 2012-01-01 false Procurement procedures. 1260.144 Section 1260.144 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GRANTS AND COOPERATIVE... Higher Education, Hospitals, and Other Non-Profit Organizations Procurement Standards §...

  4. 14 CFR 1260.144 - Procurement procedures.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 5 2013-01-01 2013-01-01 false Procurement procedures. 1260.144 Section 1260.144 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GRANTS AND COOPERATIVE... Higher Education, Hospitals, and Other Non-Profit Organizations Procurement Standards §...

  5. 14 CFR 1260.144 - Procurement procedures.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Procurement procedures. 1260.144 Section... Higher Education, Hospitals, and Other Non-Profit Organizations Procurement Standards § 1260.144 Procurement procedures. (a) All recipients shall establish written procurement procedures. These...

  6. 40 CFR 144.79 - General.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false General. 144.79 Section 144.79 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND... the Underground Injection Control (UIC) Program established under the Safe Drinking Water Act....

  7. 27 CFR 28.144 - Export marks.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Export marks. 28.144... § 28.144 Export marks. (a) General Requirement. In addition to the marks and brands required to be... brewer shall mark the word “Export” on each container or case of beer, or the words “Beer concentrate...

  8. CESIUM RECOVERY FROM AQUEOUS SOLUTIONS

    DOEpatents

    Schneider, R.A.

    1961-06-20

    Cesium may be precipitated from an aqueous solution whose acidity ranges between a pH of 1.5 and a molarity of 5 on cobaltous, zinc, cadmium, nickel, or ferrous cobalticyanide. This precipitation brings about a separation from most fission products. Ruthenium which coprecipitates to a great degree can be removed by dissolving in sulfuric acid and boiling the solution in the presence of periodic acid for volatilization; other coprecipitated fission products can then be precipitated from the sulfuric acid solution with a ferric hydroxide carrier.

  9. 17 CFR 144.6 - Fees.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... OF INFORMATION AND THE TESTIMONY OF PRESENT OR FORMER OFFICERS AND EMPLOYEES IN RESPONSE TO SUBPOENAS OR OTHER DEMANDS OF A COURT § 144.6 Fees. The provisions of § 145.8 of these regulations with...

  10. 22 CFR 144.103 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., epilepsy, muscular dystrophy, multiple sclerosis, cancer, heart disease, diabetes, mental retardation... employment in 29 CFR 1613.702(f), which is made applicable to this part by § 144.140. Section 504...

  11. 22 CFR 144.103 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ..., epilepsy, muscular dystrophy, multiple sclerosis, cancer, heart disease, diabetes, mental retardation... employment in 29 CFR 1613.702(f), which is made applicable to this part by § 144.140. Section 504...

  12. 22 CFR 144.103 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., epilepsy, muscular dystrophy, multiple sclerosis, cancer, heart disease, diabetes, mental retardation... employment in 29 CFR 1613.702(f), which is made applicable to this part by § 144.140. Section 504...

  13. Some thermochemical studies of cesium uranate, molybdate and chromate

    NASA Astrophysics Data System (ADS)

    Bose, O. K.; Sundaresan, M.; Tangri, R. P.; Kalyanaraman, R.; Schumacher, G.

    1985-02-01

    The present paper deals with studies on vaporisation of cesium monouranate and enthalpies of formation of cesium molybdate and cesium chromate. Vaporization studies of cesium monouranate using Knudsen cell in combination with quadrupole mass spectrometer at the temperature range of 1000-1573 K have indicated that at a temperature above 1223 K it decomposes to cesium polyuranate and cesium vapour. Cesium ion current vs temperature graphs have been plotted. The slope has thus been experimentally found to be -4.1 × 10 4 which compares well with the calculated value of the temperature co-efficient of the decomposition reaction. The enthalpies of formation of cesium molybdate and cesium chromate have been determined by static bomb calorimetry by reacting cesium carbonate with respective oxide in ultra pure oxygen.

  14. Sintered wire cesium dispenser photocathode

    SciTech Connect

    Montgomery, Eric J; Ives, R. Lawrence; Falce, Louis R

    2014-03-04

    A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.

  15. RECOVERY OF CESIUM FROM WASTE SOLUTIONS

    DOEpatents

    Burgus, W.H.

    1959-06-30

    This patent covers the precipitation of fission products including cesium on nickel or ferric ferrocyanide and subsequent selective dissolution from the carrier with a solution of ammonia or mercurlc nitrate.

  16. Environmental Tests Of Cesium Frequency Standards

    NASA Technical Reports Server (NTRS)

    Sydnor, Richard L.; Tucker, Thomas K.; Greenhall, Charles A.; Diener, William A.; Maleki, Lutfollah

    1992-01-01

    Report describes environmental tests of cesium-beam frequency standards of United States Naval Observatory. Purpose of tests to determine effects of atmospheric temperature, relative humidity, and pressure on frequencies.

  17. An overview of advanced cesium reservoir technology

    SciTech Connect

    Lamp, T.R. )

    1993-01-20

    The cesium reservoir is a critical component pacing development of a long life thermionic power system. A variety of cesium reservoirs have been researched during the existence of thermionics technology. Cesium is the ionization medium of choice and reservoir research is directed at containing and controlling this material. Historically, reservoirs of interest have included porous tungsten, highly oriented pyrolytic graphite (HOPG), charcoal, POCO graphite, binary compounds, and gas buffered reservoirs. Russian researchers are also working on a variety of reservoirs and cesiation techniques which are generically referred to as interelectrode medium maintenance systems. Russian work follows the general thrust of US work (heat pipe based concepts, graphite reservoir concepts, and chemical compounds of cesium.) This paper discusses the merits of several of these cesiation techniques which are in various stages of development in the United States. Russian work will be addressed only as a matter of historical record.

  18. An overview of advanced cesium reservoir technology

    NASA Astrophysics Data System (ADS)

    Lamp, Thomas R.

    1993-01-01

    The cesium reservoir is a critical component pacing development of a long life thermionic power system. A variety of cesium reservoirs have been researched during the existence of thermionics technology. Cesium is the ionization medium of choice and reservoir research is directed at containing and controlling this material. Historically, reservoirs of interest have included porous tungsten, highly oriented pyrolytic graphite (HOPG), charcoal, POCO graphite, binary compounds, and gas buffered reservoirs. Russian researchers are also working on a variety of reservoirs and cesiation techniques which are generically referred to as interelectrode medium maintenance systems. Russian work follows the general thrust of US work (heat pipe based concepts, graphite reservoir concepts, and chemical compounds of cesium.) This paper discusses the merits of several of these cesiation techniques which are in various stages of development in the United States. Russian work will be addressed only as a matter of historical record.

  19. Statistical properties of high performance cesium standards

    NASA Technical Reports Server (NTRS)

    Percival, D. B.

    1973-01-01

    The intermediate term frequency stability of a group of new high-performance cesium beam tubes at the U.S. Naval Observatory were analyzed from two viewpoints: (1) by comparison of the high-performance standards to the MEAN(USNO) time scale and (2) by intercomparisons among the standards themselves. For sampling times up to 5 days, the frequency stability of the high-performance units shows significant improvement over older commercial cesium beam standards.

  20. Cesium and strontium ion specific exchangers

    SciTech Connect

    Yates, S.

    1996-10-01

    This work is one of two parallel projects that are part of an ESP task to develop high-capacity, selective, solid extractants for cesium, strontium, and technetium from nuclear wastes. In this subtask, Pacific Northwest National Laboratory (PNNL) is collaborating with AlliedSignal, Inc. (Des Plaines, Illinois) to develop inorganic ion exchangers that are selective for strontium and cesium from alkaline high-level waste and groundwater streams.

  1. A convenient iodination method for alcohols using cesium iodide/methanesulfonic acid and its comparison using cesium iodide/p-toluenesulfonic acid or cesium iodide/aluminium chloride.

    PubMed

    Khan, Khalid Mohammed; Zia-Ullah; Perveen, Shahnaz; Hayat, Safdar; Ali, Muhammad; Voelter, Wolfgang

    2008-01-01

    In situ generation of hydrogen iodide from cesium iodide/methanesulfonic acid was found to be an attractive reagent combination for the conversion of alkyl, allyl, and benzyl alcohols to their corresponding iodides under mild conditions. The method is compared with that using cesium iodide/p-toluenesulfonic acid or cesium iodide/aluminium chloride.

  2. Tests of a cesium vapor control, circulation and purge system

    NASA Astrophysics Data System (ADS)

    Desplat, Jean-Louis; Hatch, G. Laurie; Greek, Kevin; Rasor, Ned S.

    1993-01-01

    A new type of cesium vapor supply system (the Cesiator) has been conceived that automatically maintains a constant cesium pressure over a wide range of temperature conditions, continuously recirculates the cesium vapor, and purges the cesium vapor of evolved impurities. The operating principle of this new type of cesium vapor supply is based on gas-buffered heat pipe technology. A preprototype model of the cesiator with an argon buffer was successfully operated at prototypic cesium pressures. Its ability to effectively sweep away injected non-condensible inert impurities was demonstrated using xenon.

  3. Tests of a cesium vapor control, circulation and purge system

    SciTech Connect

    Desplat, J.; Hatch, G.L.; Greek, K. ); Rasor, N.S. Consultant )

    1993-01-20

    A new type of cesium vapor supply system (the Cesiator) has been conceived that automatically maintains a constant cesium pressure over a wide range of temperature conditions, continuously recirculates the cesium vapor, and purges the cesium vapor of evolved impurities. The operating principle of this new type of cesium vapor supply is based on gas-buffered heat pipe technology. A preprototype model of the cesiator with an argon buffer was successfully operated at prototypic cesium pressures. Its ability to effectively sweep away injected non-condensible inert impurities was demonstrated using xenon.

  4. 22 CFR 144.103 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., cosmetic disfigurement, or anatomical loss affecting one or more of the following body systems...; reproductive; digestive; genitourinary; hemic and lymphatic; skin; and endocrine; or (ii) Any mental or... employment in 29 CFR 1613.702(f), which is made applicable to this part by § 144.140. Section 504...

  5. 7 CFR 1703.144 - Completed application.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AGRICULTURE RURAL DEVELOPMENT Distance Learning and Telemedicine Loan Program § 1703.144 Completed application... the project provides predominantly distance learning or telemedicine services as defined in § 1703.102. If the project provides both distance learning and telemedicine services, the applicant must...

  6. 33 CFR 211.144 - Notice.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE REAL ESTATE ACTIVITIES OF THE CORPS OF ENGINEERS IN CONNECTION WITH CIVIL WORKS PROJECTS Conveyances for Public Port Or Industrial Facilities § 211.144 Notice. The District Engineer shall give notice of the availability of...

  7. 22 CFR 144.103 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., cosmetic disfigurement, or anatomical loss affecting one or more of the following body systems...; reproductive; digestive; genitourinary; hemic and lymphatic; skin; and endocrine; or (ii) Any mental or... employment in 29 CFR 1613.702(f), which is made applicable to this part by § 144.140. Section 504...

  8. 50 CFR 648.144 - Gear restrictions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ..., DEPARTMENT OF COMMERCE FISHERIES OF THE NORTHEASTERN UNITED STATES Management Measures for the Black Sea Bass Fishery § 648.144 Gear restrictions. (a) Trawl gear restrictions—(1) General. (i) Otter trawlers whose owners are issued a black sea bass moratorium permit and that land or possess 500 lb (226.8 kg) or...

  9. 50 CFR 648.144 - Gear restrictions.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... restrictions—(1) General. (i) Otter trawlers whose owners are issued a black sea bass moratorium permit and... Black Sea Bass Fishery § 648.144 Gear restrictions. Link to an amendment published at 76 FR 60637, Sept. 29, 2011. (a) Trawl gear restrictions—(1) General. (i) Otter trawlers whose owners are issued a...

  10. 9 CFR 381.144 - Packaging materials.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... consistent with the Food and Drug Administration's regulations regarding such guaranties (21 CFR 7.12 and 7... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Packaging materials. 381.144 Section... Packaging materials. (a) Edible products may not be packaged in a container which is composed in whole or...

  11. 32 CFR 552.144 - Procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Fort Benjamin Harrison, Indiana § 552.144 Procedures. (a) Except for the soldiers, Army civilians and..., United States Army Soldier Support Center (USASSC), Fort Benjamin Harrison, Indiana, or his/her..., submit a request to the following address: HQ, USASSC and Fort Benjamin Harrison, ATTN: Public...

  12. 40 CFR 144.60 - Applicability.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I Hazardous Waste Injection Wells § 144.60... existing and new Class I Hazardous waste injection wells, except as provided otherwise in this section....

  13. 40 CFR 144.60 - Applicability.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I Hazardous Waste Injection Wells § 144.60... existing and new Class I Hazardous waste injection wells, except as provided otherwise in this section....

  14. 40 CFR 144.17 - Records.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements § 144.17 Records. The Director or the Administrator may require, by written notice on a selective well-by-well basis, an owner or operator of an...

  15. 40 CFR 144.17 - Records.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements § 144.17 Records. The Director or the Administrator may require, by written notice on a selective well-by-well basis, an owner or operator of an...

  16. 7 CFR 1703.144 - Completed application.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AGRICULTURE RURAL DEVELOPMENT Distance Learning and Telemedicine Loan Program § 1703.144 Completed application... sustainable project for a minimum of 10 years and repay the requested loan. This documentation should include.... 11375 and as supplemented by regulations contained in 41 CFR part 60; (2) Architectural barriers;...

  17. 7 CFR 1703.144 - Completed application.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AGRICULTURE RURAL DEVELOPMENT Distance Learning and Telemedicine Loan Program § 1703.144 Completed application... sustainable project for a minimum of 10 years and repay the requested loan. This documentation should include.... 11375 and as supplemented by regulations contained in 41 CFR part 60; (2) Architectural barriers;...

  18. 7 CFR 1703.144 - Completed application.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AGRICULTURE RURAL DEVELOPMENT Distance Learning and Telemedicine Loan Program § 1703.144 Completed application... sustainable project for a minimum of 10 years and repay the requested loan. This documentation should include.... 11375 and as supplemented by regulations contained in 41 CFR part 60; (2) Architectural barriers;...

  19. 7 CFR 1703.144 - Completed application.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AGRICULTURE RURAL DEVELOPMENT Distance Learning and Telemedicine Loan Program § 1703.144 Completed application... sustainable project for a minimum of 10 years and repay the requested loan. This documentation should include.... 11375 and as supplemented by regulations contained in 41 CFR part 60; (2) Architectural barriers;...

  20. 9 CFR 381.144 - Packaging materials.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... consistent with the Food and Drug Administration's regulations regarding such guaranties (21 CFR 7.12 and 7... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Packaging materials. 381.144 Section... Packaging materials. (a) Edible products may not be packaged in a container which is composed in whole or...

  1. 9 CFR 381.144 - Packaging materials.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... consistent with the Food and Drug Administration's regulations regarding such guaranties (21 CFR 7.12 and 7... 9 Animals and Animal Products 2 2012-01-01 2012-01-01 false Packaging materials. 381.144 Section... Packaging materials. (a) Edible products may not be packaged in a container which is composed in whole or...

  2. 9 CFR 381.144 - Packaging materials.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... consistent with the Food and Drug Administration's regulations regarding such guaranties (21 CFR 7.12 and 7... 9 Animals and Animal Products 2 2014-01-01 2014-01-01 false Packaging materials. 381.144 Section... Packaging materials. (a) Edible products may not be packaged in a container which is composed in whole or...

  3. Polarimetry of the binary PDS 144

    NASA Astrophysics Data System (ADS)

    Pereyra, A.; Rodrigues, C. V.; Magalhães, A. M.

    2012-02-01

    Aims: Our goal is to study the circumstellar environment associated with each component of the wide intermediate-mass pre-main sequence binary system PDS 144 using broadband polarimetry. Methods: We present near-infrared (NIR) linear polarimetric observations of PDS 144 gathered with the IAGPOL imaging polarimeter along with the CamIV infrared camera at the Observatório do Pico dos Dias (OPD). In addition, we re-analyzed OPD archive optical polarization to separate the binary and estimate the interstellar polarization using foreground stars. Results: After discounting the interstellar component, we found that both stars of the binary system are intrinsically polarized. The polarization vectors at optical and NIR bands of both components are aligned with the local magnetic field and the jet axis. These findings indicate an interplay between the interstellar magnetic field and the formation of the binary system. We also found that the PDS 144N is less polarized than its southern companion in the optical. However, in the NIR PDS 144N is more polarized. Our polarization data can only be explained by high inclinations (i ≳ 80°) for the disks of both members. In particular, comparisons of our NIR data with young stellar objects disk models suggest predominantly small grains in the circumstellar environment of PDS 144N. In spite of the different grain types in each component, the infrared spectral indexes indicate a coeval system. We also found evidence of coplanarity between the disks. Based on observations obtained at the Observatório do Pico dos Dias, LNA/MCT, Itajubá, Brazil.

  4. Radiochemical separations by the ring-oven technique-IV The system (144)Ce/(144)Pr.

    PubMed

    Klockow, D; Böhmer, R G

    1969-08-01

    By using filter papers impregnated with a manganese oxide hydrate having an average oxidation number of + 3, it is possible to separate (144)Pr from (144)Ce rapidly by the ring-oven technique. With 0.06-0.07M trichloracetic acid as wash-solution, the daughter nuclide can be concentrated in the ring zone with 80-90% yield and decontamination factors > 10(3). The half-life of the separated (144)Pr was found to be 17.60 +/- 0.05 min. The behaviour of other fission nuclides under the same conditions was also investigated. PMID:18960624

  5. 40 CFR 721.10168 - Cesium tungsten oxide.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Cesium tungsten oxide. 721.10168... Substances § 721.10168 Cesium tungsten oxide. (a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as cesium tungsten oxide (PMN P-08-275; CAS No....

  6. 40 CFR 721.10168 - Cesium tungsten oxide.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Cesium tungsten oxide. 721.10168... Substances § 721.10168 Cesium tungsten oxide. (a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as cesium tungsten oxide (PMN P-08-275; CAS No....

  7. 40 CFR 721.10168 - Cesium tungsten oxide.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Cesium tungsten oxide. 721.10168... Substances § 721.10168 Cesium tungsten oxide. (a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as cesium tungsten oxide (PMN P-08-275; CAS No....

  8. REMOVAL OF CESIUM BY SORPTION FROM AQUEOUS SOLUTIONS

    DOEpatents

    Ames, L.L.

    1962-01-16

    ABS>A process is given for selectively removing cesium from acid aqueous solutions containing cesium in microquantities and other cations in macroquantities by absorption on clinoptilolite. The cesium can be eluted from the clinoptilolite with a solution of ammonia, potassium hydroxide, or rubidium hydroxide. (AEC)

  9. 40 CFR 721.10168 - Cesium tungsten oxide.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Cesium tungsten oxide. 721.10168... Substances § 721.10168 Cesium tungsten oxide. (a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as cesium tungsten oxide (PMN P-08-275; CAS No....

  10. 40 CFR 721.10168 - Cesium tungsten oxide.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Cesium tungsten oxide. 721.10168... Substances § 721.10168 Cesium tungsten oxide. (a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as cesium tungsten oxide (PMN P-08-275; CAS No....

  11. Cesium injection system for negative ion duoplasmatrons

    DOEpatents

    Kobayashi, Maasaki; Prelec, Krsto; Sluyters, Theodorus J

    1978-01-01

    Longitudinally extending, foraminous cartridge means having a cylindrical side wall forming one flat, circular, tip end surface and an opposite end; an open-ended cavity, and uniformly spaced orifices for venting the cavity through the side wall in the annulus of a plasma ring for uniformly ejecting cesium for coating the flat, circular, surface. To this end, the cavity is filled with a cesium containing substance and attached to a heater in a hollow-discharge duoplasmatron. By coating the flat circular surface with a uniform monolayer of cesium and locating it in an electrical potential well at the end of a hollow-discharge, ion duoplasmatron source of an annular hydrogen plasma ring, the negative hydrogen production from the duoplasmatron is increased. The negative hydrogen is produced on the flat surface of the cartridge and extracted by the electrical potential well along a trajectory coaxial with the axis of the plasma ring.

  12. METHOD FOR THE RECOVERY OF CESIUM VALUES

    DOEpatents

    Rimshaw, S.J.

    1960-02-16

    A method is given for recovering Cs/sup 137/ from radioactive waste solutions together with extraneous impurities. Ammonium alum is precipitated in the waste solution. The alum, which carries the cesium, is separated from the supernatant liquid and then dissolved in water. The resulting aqueous solution is then provided with a source of hydroxyl ions, which precipitates aluminum as the hydroxide, and the aluminum hydroxide is separated from the resulting liquid. This liquid, which contains anionic impurities together with ammonium and cesium, is passed through an anion exchange resin bed which removes the anionic impurities. The ammonium in the effluent is removed by destructive distiilation, leaving a substantiaily pure cesium salt in the effluent.

  13. Cesium removal flow studies using ion exchange

    SciTech Connect

    Lee, D.D.; Walker, J.F. Jr.; Taylor, P.A.

    1997-02-01

    Cesium and strontium radionuclides are a small fraction of the mainly sodium and potassium salts in underground storage tank supernatant at US Department of Energy (DOE) sites at Hanford, Oak Ridge, Savannah River, and Idaho that DOE must remediate. Cesium-137 ({sup 137}Cs) is the primary gamma radiation source in the dissolved tank waste at these sites, and its removal from the supernatant can reduce the hazard and waste classification of the treated waste reducing the further treatment and disposal costs. Several cesium removal sorbents have been developed by private industry and the US DOE`s Office of Science and Technology. Several of these removal technologies have been previously tested in small batch and column tests using simulated and a few actual supernatant under DOE`s Environmental Management (EM) programs including the Tanks Focus Area (TFA) and the Efficient Separations and Processing (ESP) Cross-Cutting Program.

  14. Microbial accumulation of uranium, radium, and cesium

    SciTech Connect

    Strandberg, G.W.; Shumate, S.E. II; Parrott, J.R. Jr.; North, S.E.

    1981-05-01

    Diverse microbial species varied considerably in their ability to accumulate uranium, cesium, and radium. Mechanistic differences in uranium uptake by Saccharomyces cerevisiae and Pseudomonas aeruginosa were indicated. S. serevisiae exhibited a slow (hours) surface accumulation of uranium which was subject to environmental factors, while P. aeruginosa accumulated uranium rapidly (minutes) as dense intracellular deposits and did not appear to be affected by environmental parameters. Metabolism was not required for uranium uptake by either organism. Cesium and radium were concentrated to a considerably lesser extent than uranium by the several species tested.

  15. Crystalline silicotitanates for cesium/strontium removal

    SciTech Connect

    Brown, N.; Miller, J.; Sherman, J.

    1996-10-01

    A new class of inorganic ion exchangers called crystalline silicotitanates (CST) has been developed that exhibits very high selectivity for cesium and strontium in the highly alkaline radioactive wastes at the Hanford Site and other DOE sites. Tests have also shown that CSTs have high selectivity for cesium in acidic and neutral solutions. The ESP is supporting an effort at Sandia National Laboratories and Texas A & M University to further develop and characterize the important chemical and physical properties that will determine the applicability of CST to radioactive waste treatment at Hanford and other DOE facilities.

  16. Perlite for permanent confinement of cesium

    NASA Astrophysics Data System (ADS)

    Balencie, J.; Burger, D.; Rehspringer, J.-L.; Estournès, C.; Vilminot, S.; Richard-Plouet, M.; Boos, A.

    2006-06-01

    We present the potential use of expanded perlite, a metastable amorphous hydrated aluminium silicate, as a permanent medium for the long-term confinement of cesium. The method requires simply a loading by mixing an aqueous cesium nitrate solution and expanded perlite at 300 K followed by densification by sintering. The formation of pollucite, CsAlSi2O6, a naturally occurring mineral phase, upon careful heat treatment is demonstrated by X-ray diffraction. Leaching tests on the resulting glass-ceramics reveal a very low Cs departure of 0.5 mg m-2 d-1.

  17. Cesium vapor thermionic converter anomalies arising from negative ion emission

    NASA Astrophysics Data System (ADS)

    Rasor, Ned S.

    2016-08-01

    Compelling experimental evidence is given that a longstanding limit encountered on cesium vapor thermionic energy converter performance improvement and other anomalies arise from thermionic emission of cesium negative ions. It is shown that the energy that characterizes thermionic emission of cesium negative ions is 1.38 eV and, understandably, is not the electron affinity 0.47 eV determined for the photodetachment threshold of the cesium negative ion. The experimental evidence includes measurements of collector work functions and volt-ampere characteristics in quasi-vacuum cesium vapor thermionic diodes, along with reinterpretation of the classic Taylor-Langmuir S-curve data on electron emission in cesium vapor. The quantitative effects of negative ion emission on performance in the ignited, unignited, and quasi-vacuum modes of cesium vapor thermionic converter operation are estimated.

  18. Cesium and Strontium Separation Technologies Literature Review

    SciTech Connect

    T. A. Todd; T. A. Todd; J. D. Law; R. S. Herbst

    2004-03-01

    Integral to the Advanced Fuel Cycle Initiative (AFCI) Program’s proposed closed nuclear fuel cycle, the fission products cesium and strontium in the dissolved spent nuclear fuel stream are to be separated and managed separately. A comprehensive literature survey is presented to identify cesium and strontium separation technologies that have the highest potential and to focus research and development efforts on these technologies. Removal of these high-heat-emitting fission products reduces the radiation fields in subsequent fuel cycle reprocessing streams and provides a significant short-term (100 yr) heat source reduction in the repository. This, along with separation of actinides, may provide a substantial future improvement in the amount of fuel that could be stored in a geologic repository. The survey and review of the candidate cesium and strontium separation technologies are presented herein. Because the AFCI program intends to manage cesium and strontium together, technologies that simultaneously separate both elements are of the greatest interest, relative to technologies that separate only one of the two elements.

  19. Scintillator handbook with emphasis on cesium iodide

    NASA Technical Reports Server (NTRS)

    Tidd, J. L.; Dabbs, J. R.; Levine, N.

    1973-01-01

    This report provides a background of reasonable depth and reference material on scintillators in general. Particular attention is paid to the cesium iodide scintillators as used in the High Energy Astronomy Observatory (HEAO) experiments. It is intended especially for use by persons such as laboratory test personnel who need to obtain a working knowledge of these materials and their characteristics in a short time.

  20. 19 CFR 191.144 - Refund of duties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Refund of duties. 191.144 Section 191.144 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States § 191.144 Refund...

  1. 33 CFR 144.01-1 - Life floats.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Life floats. 144.01-1 Section 144... CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-1 Life floats. Each manned platform shall be provided with at least two approved life floats. The life floats shall have...

  2. 33 CFR 144.01-1 - Life floats.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Life floats. 144.01-1 Section 144... CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-1 Life floats. Each manned platform shall be provided with at least two approved life floats. The life floats shall have...

  3. 33 CFR 144.01-1 - Life floats.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Life floats. 144.01-1 Section 144... CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-1 Life floats. Each manned platform shall be provided with at least two approved life floats. The life floats shall have...

  4. 41 CFR 105-53.144 - Federal Property Resources Service.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... in 41 CFR chapter 1, 41 CFR chapter 101, subchapter H, and 48 CFR chapter 1. Information on... Resources Service. 105-53.144 Section 105-53.144 Public Contracts and Property Management Federal Property... FUNCTIONS Central Offices § 105-53.144 Federal Property Resources Service. (a) Creation and authority....

  5. 41 CFR 105-53.144 - Federal Property Resources Service.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... in 41 CFR chapter 1, 41 CFR chapter 101, subchapter H, and 48 CFR chapter 1. Information on... Resources Service. 105-53.144 Section 105-53.144 Public Contracts and Property Management Federal Property... FUNCTIONS Central Offices § 105-53.144 Federal Property Resources Service. (a) Creation and authority....

  6. 41 CFR 105-53.144 - Federal Property Resources Service.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... in 41 CFR chapter 1, 41 CFR chapter 101, subchapter H, and 48 CFR chapter 1. Information on... Resources Service. 105-53.144 Section 105-53.144 Public Contracts and Property Management Federal Property... FUNCTIONS Central Offices § 105-53.144 Federal Property Resources Service. (a) Creation and authority....

  7. 32 CFR 842.144 - Scope of this subpart.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 6 2013-07-01 2013-07-01 false Scope of this subpart. 842.144 Section 842.144 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE CLAIMS AND LITIGATION ADMINISTRATIVE CLAIMS Advance Payments (10 U.S.C. 2736) § 842.144 Scope of this subpart. It tells how to make...

  8. 32 CFR 842.144 - Scope of this subpart.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 6 2012-07-01 2012-07-01 false Scope of this subpart. 842.144 Section 842.144 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE CLAIMS AND LITIGATION ADMINISTRATIVE CLAIMS Advance Payments (10 U.S.C. 2736) § 842.144 Scope of this subpart. It tells how to make...

  9. 32 CFR 842.144 - Scope of this subpart.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Scope of this subpart. 842.144 Section 842.144 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE CLAIMS AND LITIGATION ADMINISTRATIVE CLAIMS Advance Payments (10 U.S.C. 2736) § 842.144 Scope of this subpart. It tells how to make...

  10. 32 CFR 842.144 - Scope of this subpart.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 6 2011-07-01 2011-07-01 false Scope of this subpart. 842.144 Section 842.144 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE CLAIMS AND LITIGATION ADMINISTRATIVE CLAIMS Advance Payments (10 U.S.C. 2736) § 842.144 Scope of this subpart. It tells how to make...

  11. 32 CFR 842.144 - Scope of this subpart.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 6 2014-07-01 2014-07-01 false Scope of this subpart. 842.144 Section 842.144 National Defense Department of Defense (Continued) DEPARTMENT OF THE AIR FORCE CLAIMS AND LITIGATION ADMINISTRATIVE CLAIMS Advance Payments (10 U.S.C. 2736) § 842.144 Scope of this subpart. It tells how to make...

  12. 19 CFR 191.144 - Refund of duties.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Refund of duties. 191.144 Section 191.144 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States § 191.144 Refund...

  13. 19 CFR 191.144 - Refund of duties.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 2 2012-04-01 2012-04-01 false Refund of duties. 191.144 Section 191.144 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States § 191.144 Refund...

  14. 19 CFR 191.144 - Refund of duties.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 2 2014-04-01 2014-04-01 false Refund of duties. 191.144 Section 191.144 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States § 191.144 Refund...

  15. 19 CFR 191.144 - Refund of duties.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Refund of duties. 191.144 Section 191.144 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) DRAWBACK Foreign-Built Jet Aircraft Engines Processed in the United States § 191.144 Refund...

  16. 40 CFR 144.41 - Minor modifications of permits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Minor modifications of permits. 144.41 Section 144.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.41 Minor modifications...

  17. 40 CFR 144.41 - Minor modifications of permits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 23 2014-07-01 2014-07-01 false Minor modifications of permits. 144.41 Section 144.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.41 Minor modifications...

  18. 40 CFR 144.53 - Schedule of compliance.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 24 2013-07-01 2013-07-01 false Schedule of compliance. 144.53 Section 144.53 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Permit Conditions § 144.53 Schedule of compliance. (a) General....

  19. 40 CFR 144.53 - Schedule of compliance.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Schedule of compliance. 144.53 Section 144.53 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Permit Conditions § 144.53 Schedule of compliance. (a) General....

  20. 40 CFR 144.53 - Schedule of compliance.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 23 2014-07-01 2014-07-01 false Schedule of compliance. 144.53 Section 144.53 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Permit Conditions § 144.53 Schedule of compliance. (a) General....

  1. 40 CFR 144.41 - Minor modifications of permits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 24 2013-07-01 2013-07-01 false Minor modifications of permits. 144.41 Section 144.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.41 Minor modifications...

  2. 40 CFR 144.41 - Minor modifications of permits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 24 2012-07-01 2012-07-01 false Minor modifications of permits. 144.41 Section 144.41 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.41 Minor modifications...

  3. 40 CFR 144.53 - Schedule of compliance.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 24 2012-07-01 2012-07-01 false Schedule of compliance. 144.53 Section 144.53 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Permit Conditions § 144.53 Schedule of compliance. (a) General....

  4. 19 CFR 144.36 - Withdrawal for transportation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Withdrawal for transportation. 144.36 Section 144... § 144.36 Withdrawal for transportation. (a) Time limit. Merchandise may be withdrawn from warehouse for transportation to another port of entry if withdrawal for consumption or exportation can be accomplished at...

  5. 19 CFR 144.36 - Withdrawal for transportation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Withdrawal for transportation. 144.36 Section 144... § 144.36 Withdrawal for transportation. (a) Time limit. Merchandise may be withdrawn from warehouse for transportation to another port of entry if withdrawal for consumption or exportation can be accomplished at...

  6. 19 CFR 144.36 - Withdrawal for transportation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Withdrawal for transportation. 144.36 Section 144... § 144.36 Withdrawal for transportation. (a) Time limit. Merchandise may be withdrawn from warehouse for transportation to another port of entry if withdrawal for consumption or exportation can be accomplished at...

  7. 19 CFR 144.36 - Withdrawal for transportation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 2 2012-04-01 2012-04-01 false Withdrawal for transportation. 144.36 Section 144... § 144.36 Withdrawal for transportation. (a) Time limit. Merchandise may be withdrawn from warehouse for transportation to another port of entry if withdrawal for consumption or exportation can be accomplished at...

  8. 7 CFR 4280.144 - Transfer of lenders.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 15 2010-01-01 2010-01-01 false Transfer of lenders. 4280.144 Section 4280.144 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND... Efficiency Improvements Program Section B. Guaranteed Loans § 4280.144 Transfer of lenders. All transfers...

  9. 7 CFR 4280.144 - Transfer of lenders.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Transfer of lenders. 4280.144 Section 4280.144 Agriculture Regulations of the Department of Agriculture (Continued) RURAL BUSINESS-COOPERATIVE SERVICE AND... Efficiency Improvements Program Section B. Guaranteed Loans § 4280.144 Transfer of lenders. All transfers...

  10. 41 CFR 105-53.144 - Federal Property Resources Service.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... in 41 CFR chapter 1, 41 CFR chapter 101, subchapter H, and 48 CFR chapter 1. Information on... Resources Service. 105-53.144 Section 105-53.144 Public Contracts and Property Management Federal Property... FUNCTIONS Central Offices § 105-53.144 Federal Property Resources Service. (a) Creation and authority....

  11. 41 CFR 105-53.144 - Federal Property Resources Service.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... in 41 CFR chapter 1, 41 CFR chapter 101, subchapter H, and 48 CFR chapter 1. Information on... Resources Service. 105-53.144 Section 105-53.144 Public Contracts and Property Management Federal Property... FUNCTIONS Central Offices § 105-53.144 Federal Property Resources Service. (a) Creation and authority....

  12. 22 CFR 144.110 - Self-evaluation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Self-evaluation. 144.110 Section 144.110... HANDICAP IN PROGRAMS OR ACTIVITIES CONDUCTED BY THE UNITED STATES DEPARTMENT OF STATE § 144.110 Self... or organizations representing handicapped persons, to participate in the self-evaluation process...

  13. 19 CFR 144.2 - Liability of importers and sureties.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Liability of importers and sureties. 144.2 Section 144.2 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT... § 144.2 Liability of importers and sureties. The importer of merchandise entered for warehouse is...

  14. 10 CFR 63.144 - Quality assurance program change.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 2 2011-01-01 2011-01-01 false Quality assurance program change. 63.144 Section 63.144 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) DISPOSAL OF HIGH-LEVEL RADIOACTIVE WASTES IN A GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Quality Assurance § 63.144 Quality assurance program change. Changes...

  15. 10 CFR 63.144 - Quality assurance program change.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Quality assurance program change. 63.144 Section 63.144 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) DISPOSAL OF HIGH-LEVEL RADIOACTIVE WASTES IN A GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Quality Assurance § 63.144 Quality assurance program change. Changes...

  16. 10 CFR 63.144 - Quality assurance program change.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 2 2012-01-01 2012-01-01 false Quality assurance program change. 63.144 Section 63.144 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) DISPOSAL OF HIGH-LEVEL RADIOACTIVE WASTES IN A GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Quality Assurance § 63.144 Quality assurance program change. Changes...

  17. 19 CFR 144.34 - Transfer to another warehouse.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 2 2014-04-01 2014-04-01 false Transfer to another warehouse. 144.34 Section 144... § 144.34 Transfer to another warehouse. (a) At the same port. With the concurrence of the proprietors of... another at the same port under Customs supervision and at the expense of the importer upon his...

  18. 19 CFR 144.34 - Transfer to another warehouse.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 2 2011-04-01 2011-04-01 false Transfer to another warehouse. 144.34 Section 144... § 144.34 Transfer to another warehouse. (a) At the same port. With the concurrence of the proprietors of... another at the same port under Customs supervision and at the expense of the importer upon his...

  19. 19 CFR 144.34 - Transfer to another warehouse.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 2 2013-04-01 2013-04-01 false Transfer to another warehouse. 144.34 Section 144... § 144.34 Transfer to another warehouse. (a) At the same port. With the concurrence of the proprietors of... another at the same port under Customs supervision and at the expense of the importer upon his...

  20. 19 CFR 144.34 - Transfer to another warehouse.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Transfer to another warehouse. 144.34 Section 144... § 144.34 Transfer to another warehouse. (a) At the same port. With the concurrence of the proprietors of... another at the same port under Customs supervision and at the expense of the importer upon his...

  1. 19 CFR 144.34 - Transfer to another warehouse.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 2 2012-04-01 2012-04-01 false Transfer to another warehouse. 144.34 Section 144... § 144.34 Transfer to another warehouse. (a) At the same port. With the concurrence of the proprietors of... another at the same port under Customs supervision and at the expense of the importer upon his...

  2. 33 CFR 144.01-1 - Life floats.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Life floats. 144.01-1 Section 144... CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-1 Life floats. Each manned platform shall be provided with at least two approved life floats. The life floats shall have...

  3. 33 CFR 144.01-1 - Life floats.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Life floats. 144.01-1 Section 144... CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-1 Life floats. Each manned platform shall be provided with at least two approved life floats. The life floats shall have...

  4. 5 CFR 185.144 - Right to administrative offset.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Right to administrative offset. 185.144 Section 185.144 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.144 Right to administrative offset. The amount of any penalty or...

  5. 29 CFR 794.144 - Records to be maintained.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Records to be maintained. 794.144 Section 794.144 Labor... From Overtime Pay Requirements Under Section 7(b)(3) of the Act Records to Be Kept by Employers § 794.144 Records to be maintained. (a) Form of records. No particular order or form of records...

  6. 29 CFR 794.144 - Records to be maintained.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Records to be maintained. 794.144 Section 794.144 Labor... From Overtime Pay Requirements Under Section 7(b)(3) of the Act Records to Be Kept by Employers § 794.144 Records to be maintained. (a) Form of records. No particular order or form of records...

  7. 29 CFR 794.144 - Records to be maintained.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Records to be maintained. 794.144 Section 794.144 Labor... From Overtime Pay Requirements Under Section 7(b)(3) of the Act Records to Be Kept by Employers § 794.144 Records to be maintained. (a) Form of records. No particular order or form of records...

  8. 29 CFR 794.144 - Records to be maintained.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Records to be maintained. 794.144 Section 794.144 Labor... From Overtime Pay Requirements Under Section 7(b)(3) of the Act Records to Be Kept by Employers § 794.144 Records to be maintained. (a) Form of records. No particular order or form of records...

  9. 40 CFR 144.36 - Duration of permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Duration of permits. 144.36 Section 144.36 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.36 Duration of permits. (a) Permits...

  10. 40 CFR 144.88 - What are the additional requirements?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...? 144.88 Section 144.88 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Requirements for Owners and Operators of Class V Injection Wells § 144.88 What are the additional requirements? The additional requirements are specified...

  11. 40 CFR 144.66 - State assumption of responsibility.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... 144.66 Section 144.66 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I Hazardous Waste Injection Wells § 144.66 State assumption of responsibility. (a) If a State either assumes...

  12. 40 CFR 144.37 - Continuation of expiring permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Continuation of expiring permits. 144.37 Section 144.37 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.37 Continuation...

  13. 40 CFR 144.35 - Effect of a permit.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Effect of a permit. 144.35 Section 144.35 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.35 Effect of a permit. (a) Except...

  14. 40 CFR 144.66 - State assumption of responsibility.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false State assumption of responsibility. 144.66 Section 144.66 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I Hazardous Waste Injection Wells § 144.66 State assumption...

  15. 12 CFR 252.144 - Annual stress test.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 4 2014-01-01 2014-01-01 false Annual stress test. 252.144 Section 252.144... (CONTINUED) ENHANCED PRUDENTIAL STANDARDS (REGULATION YY) Company-Run Stress Test Requirements for Covered Companies § 252.144 Annual stress test. (a) In general. A covered company must conduct an annual stress...

  16. 12 CFR 252.144 - Annual stress test.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 12 Banks and Banking 4 2013-01-01 2013-01-01 false Annual stress test. 252.144 Section 252.144... (CONTINUED) ENHANCED PRUDENTIAL STANDARDS (REGULATION YY) Company-Run Stress Test Requirements for Covered Companies § 252.144 Annual stress test. (a) In general. A covered company must conduct an annual stress...

  17. 19 CFR 144.14 - Removal to warehouse.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Removal to warehouse. 144.14 Section 144.14... TREASURY (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS Requirements and Procedures for Warehouse Entry § 144.14 Removal to warehouse. When the entry summary, Customs Form 7501, and the bond...

  18. 42 CFR 456.144 - Data sources for studies.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 4 2012-10-01 2012-10-01 false Data sources for studies. 456.144 Section 456.144... Care Evaluation Studies § 456.144 Data sources for studies. Data that the committee uses to perform studies must be obtained from one or more of the following sources: (a) Medical records or...

  19. 42 CFR 456.144 - Data sources for studies.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 4 2014-10-01 2014-10-01 false Data sources for studies. 456.144 Section 456.144... Care Evaluation Studies § 456.144 Data sources for studies. Data that the committee uses to perform studies must be obtained from one or more of the following sources: (a) Medical records or...

  20. 42 CFR 456.144 - Data sources for studies.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Data sources for studies. 456.144 Section 456.144... Care Evaluation Studies § 456.144 Data sources for studies. Data that the committee uses to perform studies must be obtained from one or more of the following sources: (a) Medical records or...

  1. 42 CFR 456.144 - Data sources for studies.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 4 2013-10-01 2013-10-01 false Data sources for studies. 456.144 Section 456.144... Care Evaluation Studies § 456.144 Data sources for studies. Data that the committee uses to perform studies must be obtained from one or more of the following sources: (a) Medical records or...

  2. 42 CFR 456.144 - Data sources for studies.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 4 2011-10-01 2011-10-01 false Data sources for studies. 456.144 Section 456.144... Care Evaluation Studies § 456.144 Data sources for studies. Data that the committee uses to perform studies must be obtained from one or more of the following sources: (a) Medical records or...

  3. Distribution of radioactive cesium and stable cesium in cattle kept on a highly contaminated area of Fukushima nuclear accident.

    PubMed

    Sato, Itaru; Okada, Keiji; Sasaki, Jun; Chida, Hiroyuki; Satoh, Hiroshi; Miura, Kiyoshi; Kikuchi, Kaoru; Otani, Kumiko; Sato, Shusuke

    2015-07-01

    Radioactivity inspection of slaughtered cattle is generally conducted using a portion of the neck muscle; however, there is limited information about the distribution of radioactive cesium in cattle. In this study, therefore, we measured not only radioactive cesium but also stable cesium in various tissues of 19 cattle that had been kept in the area highly contaminated by the Fukushima nuclear accident. Skeletal muscles showed approximately 1.5-3.0 times higher concentration of radioactive cesium than internal organs. Radioactive cesium concentration in the tenderloin and top round was about 1.2 times as high as that in the neck muscle. The kidney showed the highest concentration of radioactive cesium among internal organs, whereas the liver was lowest. Radioactive cesium concentration in the blood was about 8% of that in the neck muscle. Characteristics of stable cesium distribution were almost the same as those of radioactive cesium. Correlation coefficient between radioactive cesium and stable cesium in tissues of individual cattle was 0.981 ± 0.012. When a suspicious level near 100 Bq/kg is detected in the neck of slaughtered cattle, re-inspection should be conducted using a different region of muscle, for example top round, to prevent marketing of beef that violates the Food Sanitation Act.

  4. Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions

    DOEpatents

    Dietz, Mark L.; Horwitz, E. Philip; Bartsch, Richard A.; Barrans, Jr., Richard E.; Rausch, David

    1999-01-01

    A crown ether cesium ion extractant is disclosed as is its synthesis. The crown ether cesium ion extractant is useful for the selective purification of cesium ions from aqueous acidic media, and more particularly useful for the isolation of radioactive cesium-137 from nuclear waste streams. Processes for isolating cesium ions from aqueous acidic media using the crown ether cesium extractant are disclosed as are processes for recycling the crown ether cesium extractant and processes for recovering cesium from a crown ether cesium extractant solution.

  5. Composition and process for separating cesium ions from an acidic aqueous solution also containing other ions

    DOEpatents

    Dietz, M.L.; Horwitz, E.P.; Bartsch, R.A.; Barrans, R.E. Jr.; Rausch, D.

    1999-03-30

    A crown ether cesium ion extractant is disclosed as is its synthesis. The crown ether cesium ion extractant is useful for the selective purification of cesium ions from aqueous acidic media, and more particularly useful for the isolation of radioactive cesium-137 from nuclear waste streams. Processes for isolating cesium ions from aqueous acidic media using the crown ether cesium extractant are disclosed as are processes for recycling the crown ether cesium extractant and processes for recovering cesium from a crown ether cesium extractant solution. 4 figs.

  6. The 144Ce source for SOX

    NASA Astrophysics Data System (ADS)

    Durero, M.; Vivier, M.; Agostini, M.; Altenmüller, K.; Appel, S.; Bellini, G.; Benziger, J.; Berton, N.; Bick, D.; Bonfini, G.; Bravo, D.; Caccianiga, B.; Calaprice, F.; Caminata, A.; Cavalcante, P.; Chepurnov, A.; Choi, K.; Cribier, M.; D'Angelo, D.; Davini, S.; Derbin, A.; Di Noto, L.; Drachnev, I.; Etenko, A.; Farinon, S.; Fischer, V.; Fomenko, K.; Franco, D.; Gabriele, F.; Gaffiot, J.; Galbiati, C.; Ghiano, C.; Giammarchi, M.; Goeger-Neff, M.; Goretti, A.; Gromov, M.; Hagner, C.; Houdy, T.; Hungerford, E.; Ianni, Aldo; Ianni, Andrea; Jonqueres, N.; Jedrzejczak, K.; Kaiser, M.; Kobychev, V.; Korablev, D.; Korga, G.; Kornoukhov; Kryn, D.; Lachenmaier, T.; Lasserre, T.; Laubenstein, M.; Lehnert, B.; Link, J.; Litvinovich, E.; Lombardi, F.; Lombardi, P.; Ludhova, L.; Lukyanchenko, G.; Machulin, I.; Manecki, S.; Maneschg, W.; Marcocci, S.; Maricic, J.; Mention, G.; Meroni, E.; Meyer, M.; Miramonti, L.; Misiaszek, M.; Montuschi, M.; Muratova, V.; Musenich, R.; Neumair, B.; Oberauer, L.; Obolensky, M.; Ortica, F.; Pallavicini, M.; Papp, L.; Perasso, L.; Pocar, A.; Ranucci, G.; Razeto, A.; Re, A.; Romani, A.; Roncin, R.; Rossi, N.; Schönert, S.; Scola, L.; Semenov, D.; Simgen, H.; Skorokhvatov, M.; Smirnov, O.; Sotnikov, A.; Sukhotin, S.; Suvorov; Tartaglia, R.; Testera, G.; Thurn, J.; Toropova, M.; Veyssiére, C.; Unzhakov, E.; Vogelaar, R. B.; von Feilitzsch, F.; Wang, H.; Weinz, S.; Winter, J.; Wojcik, M.; Wurm, M.; Yokley, Z.; Zaimidoroga, O.; Zavatarelli, S.; Zuber, K.; Zuzel, G.

    2016-02-01

    The SOX (Short distance neutrino Oscillations with BoreXino) project aims at testing the light sterile neutrino hypothesis. To do so, two artificials sources of antineutrinos and neutrinos respectively will be consecutively deployed at the Laboratori Nazionali del Gran Sasso (LNGS) in close vicinity to Borexino, a large liquid scintillator detector. This document reports on the source production and transportation. The source should exhibit a long lifetime and a high decay energy, a requirement fullfilled by the 144Ce-144Pr pair at secular equilibrium. It will be produced at FSUE “Mayak” PA using spent nuclear fuel. It will then be shielded and packed according to international regulation and shipped to LNGS across Europe. Knowledge of the Cerium antineutrino generator (CeANG) parameters is crucial for SOX as it can strongly impact the experiment sensitivity. Several apparatuses are being used or designed to characterize CeANG activity, radioactive emission and content. An overview of the measurements performed so far is presented here.

  7. Temperature Dependence of Cesium Iodine

    NASA Astrophysics Data System (ADS)

    Valentine, John David

    The gamma-ray excited, temperature dependent scintillation characteristics of CsI(T1) are reported over the temperature range of -100 to +50^circ C. The modified Bollinger-Thomas and shaped square wave methods were used to measure the rise and decay times. Emission spectra were measured using a monochromator and corrected for monochromator and photocathode spectral efficiencies. The shaped square wave method was also used to determine the scintillation yield as was a current mode method. The thermoluminescence emission of CsI(T1) were measured using the same current mode method. At room temperature, CsI(T1) was found to have two primary decay components with decay time constants of tau_1 = 679 +/- 9 ns (63.7%) and tau_2 = 3.34 +/- 0.10 mus (36.1%), an absolute scintillation yield of 65,500 +/- 4,100 photons/MeV, and emission bands at about 400 and 560 nm. The tau_1 luminescent state was observed to be populated by an exponential process with a resulting rise time constant of 19.6 +/- 1.9 ns at room temperature. An ultra-fast decay component with a <0.5 ns decay time was found to emit about 0.2% of the total scintillation light (about 100 photons/MeV). Except for the ultra-fast decay time, the rise and decay time constants were observed to increase exponentially with inverse temperature. At -80 ^circC, tau_1 and tau_2 were determined to be 2.22 +/- 0.31 mu s and 18.0 +/- 1.44 mus, respectively, while the 400 nm emission band was not observed below -50 ^circC. At +50^circ C, the decay constants were found to be 628 +/- 3 ns (70.5%) and 2.63 +/- 0.03 mus (29.3%) and both emission bands are present. The scintillation yield of CsI(T1) was observed to be only slightly temperature dependent between -40 and +50^circ C, peaking at about -30 ^circC (about 6% above the room temperature yield). Four different commercially-available CsI(T1) crystals were used. Minimal variations in the measured scintillation characteristics were observed among these four crystals

  8. 40 CFR 144.1 - Purpose and scope of part 144.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., the effective date of 40 CFR part 146, which was the final element of the UIC minimum requirements to... CFR part 146. (f) Structure of the UIC program—(1) Part 144. This part sets forth the permitting and... definitions and classifications. (ii) Subpart B sets forth the general program requirements, including...

  9. 40 CFR 144.1 - Purpose and scope of part 144.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., the effective date of 40 CFR part 146, which was the final element of the UIC minimum requirements to... CFR part 146. (f) Structure of the UIC program—(1) Part 144. This part sets forth the permitting and.... These requirements carry out the purposes of the public participation requirement of 40 CFR part...

  10. 40 CFR 144.1 - Purpose and scope of part 144.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... “identified.” The Director may also designate “exempted aquifers” using the criteria in 40 CFR 146.4 of this..., the effective date of 40 CFR part 146, which was the final element of the UIC minimum requirements to... CFR part 146. (f) Structure of the UIC program—(1) Part 144. This part sets forth the permitting...

  11. 40 CFR 144.1 - Purpose and scope of part 144.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... “identified.” The Director may also designate “exempted aquifers” using the criteria in 40 CFR 146.4 of this..., the effective date of 40 CFR part 146, which was the final element of the UIC minimum requirements to... CFR part 146. (f) Structure of the UIC program—(1) Part 144. This part sets forth the permitting...

  12. 40 CFR 144.1 - Purpose and scope of part 144.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... “identified.” The Director may also designate “exempted aquifers” using the criteria in 40 CFR 146.4 of this..., the effective date of 40 CFR part 146, which was the final element of the UIC minimum requirements to... CFR part 146. (f) Structure of the UIC program—(1) Part 144. This part sets forth the permitting...

  13. The status of cesium beam frequency standards

    NASA Technical Reports Server (NTRS)

    Cutler, Leonard S.

    1990-01-01

    There has been a lot of progress in cesium beam frequency standards in the last few years some of which will be reported here. Optical pumping is being pursued actively in a number of laboratories. Optically slowed and cooled beams have been demonstrated as well as traps for cold neutral atoms. The microwave cavity performance with regard to local phase shift at the beam holes was improved by use of carefully designed and built ring structures for the cavity ends. Work is being done on improvements in electronics with some emphasis on use of digital circuitry and microprocessors. The frequency pulling due to microwave Delta M = +/- 1 transitions (Ramsey pulling) was analyzed and shown to be important. Status of cesium beam frequency standards in some of the laboratories as well as some of the commercial work is discussed. Optical pumping and detection are discussed.

  14. Cesium titanium silicate and method of making

    DOEpatents

    Balmer, M.L.

    1997-01-07

    The invention is the new material, a ternary compound of cesium, silica, and titania, together with a method of making the ternary compound, cesium titanium silicate pollucite. More specifically, the invention is Cs{sub 2}Ti{sub 2}Si{sub 4}O{sub 13} pollucite which is a new crystalline phase representing a novel class of Ti-containing zeolites. Compositions contain relatively high Cs{sub 2}O and TiO{sub 2} loadings and are durable glass and ceramic materials. The amount of TiO{sub 2} and Cs{sub 2} that can be incorporated into these glasses and crystalline ceramics far exceeds the limits set for the borosilicate high level waste glass. 10 figs.

  15. Cesium titanium silicate and method of making

    DOEpatents

    Balmer, Mari L.

    1997-01-01

    The invention is the new material, a ternary compound of cesium, silica, and titania, together with a method of making the ternary compound, cesium titanium silicate pollucite. More specifically, the invention is Cs.sub.2 Ti.sub.2 Si.sub.4 O.sub.13 pollucite which is a new crystalline phase representing a novel class of Ti-containing zeolites. Compositions contain relatively high Cs.sub.2 O and TiO.sub.2 loadings and are durable glass and ceramic materials. The amount of TiO.sub.2 and Cs.sub.2 that can be incorporated into these glasses and crystalline ceramics far exceeds the limits set for the borosilicate high level waste glass.

  16. Bose-Einstein condensation of cesium.

    PubMed

    Weber, Tino; Herbig, Jens; Mark, Michael; Nägerl, Hanns-Christoph; Grimm, Rudolf

    2003-01-10

    Bose-Einstein condensation of cesium atoms is achieved by evaporative cooling using optical trapping techniques. The ability to tune the interactions between the ultracold atoms by an external magnetic field is crucial to obtain the condensate and offers intriguing features for potential applications. We explore various regimes of condensate self-interaction (attractive, repulsive, and null interaction strength) and demonstrate properties of imploding, exploding, and non-interacting quantum matter. PMID:12471267

  17. Murine immunization by cesium-137 irradiation attenuated Schistosoma mansoni cercariae

    SciTech Connect

    Stek, M. Jr.; Minard, P.; Cruess, D.F.

    1984-06-01

    Cesium-137, becoming a more readily available ionizing gamma radiation source for laboratory use, was shown to effectively attenuate Schistosoma mansoni cercariae for vaccine production. In parallel comparison studies with the murine model, cesium-137 attenuated cercariae consistently afforded better protection than did the cobalt-60 prepared vaccine. Dose-response data indicated that the optimal total irradiation with cesium-137 was between 45 and 50 Krad.

  18. Hydrogen masers and cesium fountains at NRC

    NASA Technical Reports Server (NTRS)

    Boulanger, J.-S.; Morris, D.; Douglas, R. J.; Gagne, M.-C.

    1994-01-01

    The NRC masers H-3 and H-4 have been operating since June 1993 with cavity servo control. These low-flux active H masers are showing stabilities of about 10(exp -15) from 1 hour to several days. Stability results are presented, and the current and planned uses of the masers are discussed. A cesium fountain primary frequency standard project has been started at NRC. Trapping and launching experiments with the goal of 7 m/s launches are beginning. We discuss our plans for a local oscillator and servo that exploit the pulsed aspect of cesium fountain standards, and meet the challenge of 10(exp -14) tau(exp -1/2) stability without requiring masers. At best, we expect to run this frequency standard initially for periods of hours each working day rather than continuously for years, and so frequency transfer to outside laboratories has been carefully considered. We conclude that masers (or other even better secondary clocks) are required to exploit this potential accuracy of the cesium fountain. We present and discuss our conclusion that it is feasible to transfer frequency in this way with a transfer-induced uncertainty of less than 10(exp -15), even in the presence of maser frequency drift and random walk noise.

  19. Lanthanide doped strontium-barium cesium halide scintillators

    SciTech Connect

    Bizarri, Gregory; Bourret-Courchesne, Edith; Derenzo, Stephen E.; Borade, Ramesh B.; Gundiah, Gautam; Yan, Zewu; Hanrahan, Stephen M.; Chaudhry, Anurag; Canning, Andrew

    2015-06-09

    The present invention provides for a composition comprising an inorganic scintillator comprising an optionally lanthanide-doped strontium-barium, optionally cesium, halide, useful for detecting nuclear material.

  20. Surface interactions of cesium and boric acid with stainless steel

    SciTech Connect

    Grossman-Canfield, N.

    1995-08-01

    In this report, the effects of cesium hydroxide and boric acid on oxidized stainless steel surfaces at high temperatures and near one atmosphere of pressure are investigated. This is the first experimental investigation of this chemical system. The experimental investigations were performed using a mass spectrometer and a mass electrobalance. Surfaces from the different experiments were examined using a scanning electron microscope to identify the presence of deposited species, and electron spectroscopy for chemical analysis to identify the species deposited on the surface. A better understanding of the equilibrium thermodynamics, the kinetics of the steam-accelerated volatilizations, and the release kinetics are gained by these experiments. The release rate is characterized by bulk vaporization/gas-phase mass transfer data. The analysis couples vaporization, deposition, and desorption of the compounds formed by cesium hydroxide and boric acid under conditions similar to what is expected during certain nuclear reactor accidents. This study shows that cesium deposits on an oxidized stainless steel surface at temperatures between 1000 and 1200 Kelvin. Cesium also deposits on stainless steel surfaces coated with boric oxide in the same temperature ranges. The mechanism for cesium deposition onto the oxide layer was found to involve the chemical reaction between cesium and chromate. Some revaporization in the cesium hydroxide-boric acid system was observed. It has been found that under the conditions given, boric acid will react with cesium hydroxide to form cesium metaborate. A model is proposed for this chemical reaction.

  1. Laser excited fluorescence in the cesium-xenon excimer and the cesium dimer

    NASA Technical Reports Server (NTRS)

    Exton, R. J.; Snow, W. L.; Hillard, M. E.

    1978-01-01

    Argon ion laser lines are used to excite fluorescence in a mixture of cesium and xenon. Excimer band fluorescence is observed at higher pressures (about 1 atm) while at lower pressures (several torr) a diffuse fluorescence due to the cesium dimer is observed whose character changes with exciting wavelength. The excimer fluorescence is shown to be directly related to the location of the exciting wavelength within previously measured Cs/Xe line shapes. This fact suggests that the excimer systems may be efficiently pumped through these line shapes. Qualitative energy-level schemes are proposed to explain the observations in both the excimer and dimer systems.

  2. 33 CFR 144.01-30 - First-aid kit.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false First-aid kit. 144.01-30 Section 144.01-30 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-30 First-aid kit. On each manned platform a first-aid kit...

  3. Variation in available cesium concentration with parameters during temperature induced extraction of cesium from soil.

    PubMed

    Parajuli, Durga; Takahashi, Akira; Tanaka, Hisashi; Sato, Mutsuto; Fukuda, Shigeharu; Kamimura, Ryuichi; Kawamoto, Tohru

    2015-02-01

    Cesium extraction behavior of brown forest type soil collected from paddy fields in Fukushima nuclear accident affected areas was studied. In nitric acid or sulfuric acid solutions at elevated temperature, the concentration of Cs in soil available for extraction, m0, has been estimated on the basis of modified canonical equation and the equations derived from assumed equilibria. With the variation in temperature, mixing time, and soil to solvent ratio, the observed m0 values in 0.5 M acid solution ranged between 1.5 and 2.9 mg cesium per kilogram of soil. By increasing the acid concentration to 3 M, the value of m0 could be sharply increased to 5.1 mg/kg even at 95 °C. This variation in the extractable concentration of cesium with the parameters signifies the existence of different binding sites in the soil matrix. The results observed for uncontaminated sample could be reproduced with the radioactive cesium contaminated sample belonging to the same soil group.

  4. Strontium-90 and cesium-137 distribution in Baltic Sea waters

    SciTech Connect

    Lazarev, L.N.; Gedeonov, L.I.; Ivanova, L.M.; Stepanov, A.V.

    1988-09-01

    The strontium-90 and cesium-137 concentrations determined in 1983 in the Baltic Sea proper and the Gulf of Finland and in the Soviet Baltic rivers are furnished. The cesium-137 content has been found to be directly proportional to the salinity of the water. Significant influx of technogenic radioactive contaminants from the North to the Baltic Sea was noted in 1983.

  5. Hanford tank waste supernatant cesium removal test plan

    SciTech Connect

    Hendrickson, D.W., Westinghouse Hanford

    1996-05-31

    This document provides the test plan for the preparation and conduct of a cesium removal test using Hanford DSSF supernatant liquor from tank 241-AW-101 in a bench-scale column. Cesium sorbents to be tested include resorcinol-formaldehyde resin and crystalline silicotitanate.

  6. Distillation device supplies cesium vapor at constant pressure

    NASA Technical Reports Server (NTRS)

    Basiulis, A.; Shefsiek, P. K.

    1968-01-01

    Distillation apparatus in the form of a U tube supplies small amounts of pure cesium vapor at constant pressure to a thermionic converter. The upstream leg of the U tube is connected to a vacuum pump to withdraw noncondensable impurities, the bottom portion serves as a reservoir for the liquid cesium.

  7. Cesium-associated hypokalemia successfully treated with amiloride

    PubMed Central

    Horn, Sarah; Naidus, Elliot; Alper, Seth L.; Danziger, John

    2015-01-01

    Self-treatment of cancer with cesium chloride, despite proven lack of efficacy, continues to produce serious adverse effects. Among these is hypokalemia predisposing to life-threatening arrhythmia. The mechanism of cesium-associated hypokalemia (CAH) has not been described. We report urinary potassium wasting responsive to amiloride therapy in a cancer patient with CAH, and discuss possible mechanisms. PMID:26034598

  8. [Concentrations of radioactive cesium in different cuts of beef].

    PubMed

    Nabeshi, Hiromi; Kikuchi, Hiroyuki; Tsutsumi, Tomoaki; Hachisuka, Akiko; Matsuda, Rieko

    2013-01-01

    After the Fukushima No. 1 Nuclear Power Plant accident, high levels of radioactive cesium were detected in beef. Many prefectural governments decided to conduct blanket tests on meat from local beef cattle to prevent distribution of beef contaminated with radioactive cesium exceeding the provisional regulation value. In some cases, different concentrations of radioactive cesium were found in different cuts of beef from the same cows. These results raised questions about the reliability of the test results. Here, we investigated the reason for the differences in radioactive cesium concentration in different cuts of beef from the same cows. The concentrations of radioactive cesium in five different parts cuts of beef from three cows were negatively correlated with fat content, suggesting that the difference in radioactive cesium concentration is due to differences in fat content in the meat. In addition, our results showed that the concentration of radioactive cesium in muscle was more than 7-fold higher than that in fat in the same cow. These results suggested that it is necessary to use muscle for testing of radioactive cesium in cows.

  9. 40 CFR 52.144 - Significant deterioration of air quality.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... quality. 52.144 Section 52.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... deterioration of air quality. (a) The requirements of sections 160 through 165 of the Clean Act are not met... lands does not include approvable procedures for preventing the significant deterioration of air...

  10. 40 CFR 52.144 - Significant deterioration of air quality.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... quality. 52.144 Section 52.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... deterioration of air quality. (a) The requirements of sections 160 through 165 of the Clean Act are not met... lands does not include approvable procedures for preventing the significant deterioration of air...

  11. 40 CFR 52.144 - Significant deterioration of air quality.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... quality. 52.144 Section 52.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... deterioration of air quality. (a) The requirements of sections 160 through 165 of the Clean Act are not met... lands does not include approvable procedures for preventing the significant deterioration of air...

  12. 40 CFR 52.144 - Significant deterioration of air quality.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... quality. 52.144 Section 52.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... deterioration of air quality. (a) The requirements of sections 160 through 165 of the Clean Act are not met... lands does not include approvable procedures for preventing the significant deterioration of air...

  13. 40 CFR 52.144 - Significant deterioration of air quality.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... quality. 52.144 Section 52.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... deterioration of air quality. (a) The requirements of sections 160 through 165 of the Clean Act are not met... lands does not include approvable procedures for preventing the significant deterioration of air...

  14. 21 CFR 522.144 - Arsenamide sodium aqueous injection.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 21 Food and Drugs 6 2012-04-01 2012-04-01 false Arsenamide sodium aqueous injection. 522.144... § 522.144 Arsenamide sodium aqueous injection. (a) Chemical name. dithio diacetic acid, sodium salt. (b... sodium. (c) Sponsor. See No. 050604 in § 510.600(c) of this chapter. (d) Conditions of use. (1) For...

  15. 33 CFR 144.01-30 - First-aid kit.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false First-aid kit. 144.01-30 Section...) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-30 First-aid kit. On each manned platform a first-aid kit approved by the Commandant or the U.S. Bureau of Mines shall...

  16. 36 CFR 223.144 - Period of suspension.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 2 2011-07-01 2011-07-01 false Period of suspension. 223.144 Section 223.144 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM TIMBER, SPECIAL FOREST PRODUCTS, AND FOREST BOTANICAL...

  17. 21 CFR 522.144 - Arsenamide sodium aqueous injection.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 21 Food and Drugs 6 2013-04-01 2013-04-01 false Arsenamide sodium aqueous injection. 522.144 Section 522.144 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... treatment and prevention of canine heartworm disease caused by Dirofilaria immitis. (2) It is...

  18. 21 CFR 522.144 - Arsenamide sodium aqueous injection.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 6 2011-04-01 2011-04-01 false Arsenamide sodium aqueous injection. 522.144 Section 522.144 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES... treatment and prevention of canine heartworm disease caused by Dirofilaria immitis. (2) It is...

  19. 45 CFR 144.212 - Confidentiality of information.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Confidentiality of information. 144.212 Section 144.212 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE Qualified State Long-Term Care...

  20. 45 CFR 144.208 - Deadlines for submission of reports.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Deadlines for submission of reports. 144.208 Section 144.208 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE Qualified State Long-Term Care...

  1. 45 CFR 144.210 - Form and manner of reports.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Form and manner of reports. 144.210 Section 144.210 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE Qualified State Long-Term Care Insurance...

  2. 45 CFR 144.204 - Applicability of regulations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Applicability of regulations. 144.204 Section 144.204 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE Qualified State Long-Term Care Insurance...

  3. 40 CFR 261.144-261.146 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 25 2010-07-01 2010-07-01 false 261.144-261.146 Section 261.144-261.146 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) IDENTIFICATION AND LISTING OF HAZARDOUS WASTE Financial Requirements for Management of Excluded...

  4. 14 CFR 135.144 - Portable electronic devices.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Portable electronic devices. 135.144... Equipment § 135.144 Portable electronic devices. (a) Except as provided in paragraph (b) of this section, no... portable electronic device on any of the following U.S.-registered civil aircraft operating under this...

  5. 14 CFR 135.144 - Portable electronic devices.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Portable electronic devices. 135.144... Equipment § 135.144 Portable electronic devices. (a) Except as provided in paragraph (b) of this section, no... portable electronic device on any of the following U.S.-registered civil aircraft operating under this...

  6. 14 CFR 135.144 - Portable electronic devices.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Portable electronic devices. 135.144... Equipment § 135.144 Portable electronic devices. (a) Except as provided in paragraph (b) of this section, no... portable electronic device on any of the following U.S.-registered civil aircraft operating under this...

  7. 14 CFR 135.144 - Portable electronic devices.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Portable electronic devices. 135.144... Equipment § 135.144 Portable electronic devices. (a) Except as provided in paragraph (b) of this section, no... portable electronic device on any of the following U.S.-registered civil aircraft operating under this...

  8. 14 CFR 135.144 - Portable electronic devices.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Portable electronic devices. 135.144... Equipment § 135.144 Portable electronic devices. (a) Except as provided in paragraph (b) of this section, no... portable electronic device on any of the following U.S.-registered civil aircraft operating under this...

  9. 28 CFR 0.144 - Determination of basic workweek.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Determination of basic workweek. 0.144... Authorizations With Respect to Personnel and Certain Administrative Matters § 0.144 Determination of basic... modification of the basic workweek, and when such determination is made to fix the basic workweek of...

  10. 28 CFR 0.144 - Determination of basic workweek.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 28 Judicial Administration 1 2014-07-01 2014-07-01 false Determination of basic workweek. 0.144... Authorizations With Respect to Personnel and Certain Administrative Matters § 0.144 Determination of basic... modification of the basic workweek, and when such determination is made to fix the basic workweek of...

  11. 28 CFR 0.144 - Determination of basic workweek.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 28 Judicial Administration 1 2013-07-01 2013-07-01 false Determination of basic workweek. 0.144... Authorizations With Respect to Personnel and Certain Administrative Matters § 0.144 Determination of basic... modification of the basic workweek, and when such determination is made to fix the basic workweek of...

  12. 40 CFR 144.66 - State assumption of responsibility.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 24 2013-07-01 2013-07-01 false State assumption of responsibility. 144.66 Section 144.66 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I...

  13. 40 CFR 144.51 - Conditions applicable to all permits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .... 144.51 Section 144.51 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... permit. Any permit noncompliance constitutes a violation of the Safe Drinking Water Act and is grounds... permittee and incorporate such other requirements as may be necessary under the Safe Drinking Water...

  14. 40 CFR 144.66 - State assumption of responsibility.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 24 2012-07-01 2012-07-01 false State assumption of responsibility. 144.66 Section 144.66 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I...

  15. 40 CFR 144.51 - Conditions applicable to all permits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... 144.51 Section 144.51 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... permit. Any permit noncompliance constitutes a violation of the Safe Drinking Water Act and is grounds... permittee and incorporate such other requirements as may be necessary under the Safe Drinking Water...

  16. 40 CFR 144.66 - State assumption of responsibility.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 23 2014-07-01 2014-07-01 false State assumption of responsibility. 144.66 Section 144.66 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I...

  17. 21 CFR 522.144 - Arsenamide sodium aqueous injection.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 6 2010-04-01 2010-04-01 false Arsenamide sodium aqueous injection. 522.144... § 522.144 Arsenamide sodium aqueous injection. (a) Chemical name. dithio diacetic acid, sodium salt. (b... sodium. (c) Sponsor. See No. 050604 in § 510.600(c) of this chapter. (d) Conditions of use. (1) For...

  18. 5 CFR 1201.144 - Hearing procedures; referring the record.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    .... 1201.144 Section 1201.144 Administrative Personnel MERIT SYSTEMS PROTECTION BOARD ORGANIZATION AND... an informal hearing requested by a career appointee whose removal from the Senior Executive Service has been proposed under 5 U.S.C. 3592(a)(2) and 5 CFR 359.502 will be a judge, as defined at §...

  19. 40 CFR 156.144 - Residue removal instructions-general.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Residue removal instructions-general. 156.144 Section 156.144 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... section through § 156.156. (d) Modification. EPA may, on its own initiative or based on data submitted...

  20. 7 CFR 4280.144 - Transfer of lenders.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE LOANS AND GRANTS Rural Energy for America Program General Renewable Energy System and Energy Efficiency Improvement Guaranteed Loans § 4280.144 Transfer of... 7 Agriculture 15 2014-01-01 2014-01-01 false Transfer of lenders. 4280.144 Section...

  1. 7 CFR 4280.144 - Transfer of lenders.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE LOANS AND GRANTS Rural Energy for America Program General Renewable Energy System and Energy Efficiency Improvement Guaranteed Loans § 4280.144 Transfer of... 7 Agriculture 15 2013-01-01 2013-01-01 false Transfer of lenders. 4280.144 Section...

  2. 7 CFR 4280.144 - Transfer of lenders.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE LOANS AND GRANTS Rural Energy for America Program General Renewable Energy System and Energy Efficiency Improvement Guaranteed Loans § 4280.144 Transfer of... 7 Agriculture 15 2012-01-01 2012-01-01 false Transfer of lenders. 4280.144 Section...

  3. 36 CFR 223.144 - Period of suspension.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 2 2014-07-01 2014-07-01 false Period of suspension. 223.144 Section 223.144 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM TIMBER, SPECIAL FOREST PRODUCTS, AND FOREST BOTANICAL...

  4. 36 CFR 223.144 - Period of suspension.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 2 2013-07-01 2013-07-01 false Period of suspension. 223.144 Section 223.144 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM TIMBER, SPECIAL FOREST PRODUCTS, AND FOREST BOTANICAL...

  5. 36 CFR 223.144 - Period of suspension.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 2 2012-07-01 2012-07-01 false Period of suspension. 223.144 Section 223.144 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE SALE AND DISPOSAL OF NATIONAL FOREST SYSTEM TIMBER, SPECIAL FOREST PRODUCTS, AND FOREST BOTANICAL...

  6. 10 CFR 1.44 - Office of New Reactors.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 1 2013-01-01 2013-01-01 false Office of New Reactors. 1.44 Section 1.44 Energy NUCLEAR... safeguarding of nuclear reactor facilities licensed under part 52 of this chapter prior to initial commencement... Office of New Reactors. The Office of New Reactors— (a) Develops, promulgates and implements...

  7. 10 CFR 1.44 - Office of New Reactors.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 1 2012-01-01 2012-01-01 false Office of New Reactors. 1.44 Section 1.44 Energy NUCLEAR... safeguarding of nuclear reactor facilities licensed under part 52 of this chapter prior to initial commencement... Office of New Reactors. The Office of New Reactors— (a) Develops, promulgates and implements...

  8. 10 CFR 1.44 - Office of New Reactors.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 1 2011-01-01 2011-01-01 false Office of New Reactors. 1.44 Section 1.44 Energy NUCLEAR... safeguarding of nuclear reactor facilities licensed under part 52 of this chapter prior to initial commencement... Office of New Reactors. The Office of New Reactors— (a) Develops, promulgates and implements...

  9. 10 CFR 1.44 - Office of New Reactors.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 1 2014-01-01 2014-01-01 false Office of New Reactors. 1.44 Section 1.44 Energy NUCLEAR... safeguarding of nuclear reactor facilities licensed under part 52 of this chapter prior to initial commencement... Office of New Reactors. The Office of New Reactors— (a) Develops, promulgates and implements...

  10. 10 CFR 1.44 - Office of New Reactors.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 1 2010-01-01 2010-01-01 false Office of New Reactors. 1.44 Section 1.44 Energy NUCLEAR... safeguarding of nuclear reactor facilities licensed under part 52 of this chapter prior to initial commencement... Office of New Reactors. The Office of New Reactors— (a) Develops, promulgates and implements...

  11. 9 CFR 319.144 - Whole hog sausage.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 9 Animals and Animal Products 2 2014-01-01 2014-01-01 false Whole hog sausage. 319.144 Section 319.144 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY... Whole hog sausage. “Whole Hog Sausage” is sausage prepared with fresh and/or frozen meat from swine...

  12. 9 CFR 319.144 - Whole hog sausage.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Whole hog sausage. 319.144 Section 319.144 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY... Whole hog sausage. “Whole Hog Sausage” is sausage prepared with fresh and/or frozen meat from swine...

  13. 49 CFR 192.144 - Qualifying metallic components.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Qualifying metallic components. 192.144 Section....144 Qualifying metallic components. Notwithstanding any requirement of this subpart which incorporates by reference an edition of a document listed in § 192.7 or Appendix B of this part, a...

  14. 40 CFR 61.144 - Standard for manufacturing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 9 2014-07-01 2014-07-01 false Standard for manufacturing. 61.144... § 61.144 Standard for manufacturing. (a) Applicability. This section applies to the following manufacturing operations using commercial asbestos. (1) The manufacture of cloth, cord, wicks, tubing,...

  15. 40 CFR 61.144 - Standard for manufacturing.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 9 2012-07-01 2012-07-01 false Standard for manufacturing. 61.144... § 61.144 Standard for manufacturing. (a) Applicability. This section applies to the following manufacturing operations using commercial asbestos. (1) The manufacture of cloth, cord, wicks, tubing,...

  16. 40 CFR 61.144 - Standard for manufacturing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 8 2011-07-01 2011-07-01 false Standard for manufacturing. 61.144... § 61.144 Standard for manufacturing. (a) Applicability. This section applies to the following manufacturing operations using commercial asbestos. (1) The manufacture of cloth, cord, wicks, tubing,...

  17. 40 CFR 61.144 - Standard for manufacturing.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 9 2013-07-01 2013-07-01 false Standard for manufacturing. 61.144... § 61.144 Standard for manufacturing. (a) Applicability. This section applies to the following manufacturing operations using commercial asbestos. (1) The manufacture of cloth, cord, wicks, tubing,...

  18. 40 CFR 61.144 - Standard for manufacturing.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 8 2010-07-01 2010-07-01 false Standard for manufacturing. 61.144... § 61.144 Standard for manufacturing. (a) Applicability. This section applies to the following manufacturing operations using commercial asbestos. (1) The manufacture of cloth, cord, wicks, tubing,...

  19. 14 CFR § 1260.144 - Procurement procedures.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 5 2014-01-01 2014-01-01 false Procurement procedures. § 1260.144 Section § 1260.144 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GRANTS AND... Institutions of Higher Education, Hospitals, and Other Non-Profit Organizations Procurement Standards...

  20. 20 CFR 655.144 - Electronic job registry.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Electronic job registry. 655.144 Section 655... Certification § 655.144 Electronic job registry. (a) Location of and placement in the electronic job registry... promptly place for public examination a copy of the job order on an electronic job registry maintained...

  1. 20 CFR 655.144 - Electronic job registry.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 20 Employees' Benefits 3 2014-04-01 2014-04-01 false Electronic job registry. 655.144 Section 655... Certification § 655.144 Electronic job registry. (a) Location of and placement in the electronic job registry... promptly place for public examination a copy of the job order on an electronic job registry maintained...

  2. 20 CFR 655.144 - Electronic job registry.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 20 Employees' Benefits 3 2011-04-01 2011-04-01 false Electronic job registry. 655.144 Section 655... Certification § 655.144 Electronic job registry. (a) Location of and placement in the electronic job registry... promptly place for public examination a copy of the job order on an electronic job registry maintained...

  3. 20 CFR 655.144 - Electronic job registry.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 20 Employees' Benefits 3 2013-04-01 2013-04-01 false Electronic job registry. 655.144 Section 655... Certification § 655.144 Electronic job registry. (a) Location of and placement in the electronic job registry... promptly place for public examination a copy of the job order on an electronic job registry maintained...

  4. 20 CFR 655.144 - Electronic job registry.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 20 Employees' Benefits 3 2012-04-01 2012-04-01 false Electronic job registry. 655.144 Section 655... Certification § 655.144 Electronic job registry. (a) Location of and placement in the electronic job registry... promptly place for public examination a copy of the job order on an electronic job registry maintained...

  5. 27 CFR 20.144 - Packages of completely denatured alcohol.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Packages of completely denatured alcohol. 20.144 Section 20.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM...

  6. 27 CFR 20.144 - Packages of completely denatured alcohol.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Packages of completely denatured alcohol. 20.144 Section 20.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM...

  7. 27 CFR 20.144 - Packages of completely denatured alcohol.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Packages of completely denatured alcohol. 20.144 Section 20.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM...

  8. 27 CFR 20.144 - Packages of completely denatured alcohol.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Packages of completely denatured alcohol. 20.144 Section 20.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM...

  9. 27 CFR 20.144 - Packages of completely denatured alcohol.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Packages of completely denatured alcohol. 20.144 Section 20.144 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM...

  10. 42 CFR 417.144 - Evaluation and determination procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 3 2010-10-01 2010-10-01 false Evaluation and determination procedures. 417.144 Section 417.144 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICARE PROGRAM HEALTH MAINTENANCE ORGANIZATIONS, COMPETITIVE MEDICAL PLANS,...

  11. 9 CFR 319.144 - Whole hog sausage.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 9 Animals and Animal Products 2 2010-01-01 2010-01-01 false Whole hog sausage. 319.144 Section 319... CERTIFICATION DEFINITIONS AND STANDARDS OF IDENTITY OR COMPOSITION Sausage Generally: Fresh Sausage § 319.144 Whole hog sausage. “Whole Hog Sausage” is sausage prepared with fresh and/or frozen meat from swine...

  12. 41 CFR 105-71.144 - Termination for convenience.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false Termination for convenience. 105-71.144 Section 105-71.144 Public Contracts and Property Management Federal Property... the two parties shall agree upon the termination conditions, including the effective date and in...

  13. 40 CFR 144.23 - Class IV wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) and (b) of this section, injection wells used to inject contaminated ground water that has been... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Class IV wells. 144.23 Section 144.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED)...

  14. 40 CFR 144.23 - Class IV wells.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) and (b) of this section, injection wells used to inject contaminated ground water that has been... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Class IV wells. 144.23 Section 144.23 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED)...

  15. 40 CFR 144.38 - Transfer of permits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... incorporate such other requirements as may be necessary under the Safe Drinking Water Act. (b) Automatic... 40 Protection of Environment 24 2013-07-01 2013-07-01 false Transfer of permits. 144.38 Section 144.38 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS...

  16. 40 CFR 144.38 - Transfer of permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... incorporate such other requirements as may be necessary under the Safe Drinking Water Act. (b) Automatic... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Transfer of permits. 144.38 Section 144.38 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS...

  17. 40 CFR 144.38 - Transfer of permits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... incorporate such other requirements as may be necessary under the Safe Drinking Water Act. (b) Automatic... 40 Protection of Environment 24 2012-07-01 2012-07-01 false Transfer of permits. 144.38 Section 144.38 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS...

  18. 40 CFR 144.38 - Transfer of permits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... incorporate such other requirements as may be necessary under the Safe Drinking Water Act. (b) Automatic... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Transfer of permits. 144.38 Section 144.38 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS...

  19. 40 CFR 144.38 - Transfer of permits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... incorporate such other requirements as may be necessary under the Safe Drinking Water Act. (b) Automatic... 40 Protection of Environment 23 2014-07-01 2014-07-01 false Transfer of permits. 144.38 Section 144.38 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS...

  20. 7 CFR 58.144 - Pasteurization or ultra-pasteurization.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 3 2012-01-01 2012-01-01 false Pasteurization or ultra-pasteurization. 58.144 Section... Service 1 Operations and Operating Procedures § 58.144 Pasteurization or ultra-pasteurization. When pasteurization or ultra-pasteurization is intended or required, or when a product is designated “pasteurized”...

  1. 7 CFR 58.144 - Pasteurization or ultra-pasteurization.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 3 2014-01-01 2014-01-01 false Pasteurization or ultra-pasteurization. 58.144 Section... Service 1 Operations and Operating Procedures § 58.144 Pasteurization or ultra-pasteurization. When pasteurization or ultra-pasteurization is intended or required, or when a product is designated “pasteurized”...

  2. 22 CFR 144.110 - Self-evaluation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Self-evaluation. 144.110 Section 144.110...-evaluation. (a) The agency shall, by August 24, 1987, evaluate its current policies and practices, and the... or organizations representing handicapped persons, to participate in the self-evaluation process...

  3. 22 CFR 144.110 - Self-evaluation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Self-evaluation. 144.110 Section 144.110...-evaluation. (a) The agency shall, by August 24, 1987, evaluate its current policies and practices, and the... or organizations representing handicapped persons, to participate in the self-evaluation process...

  4. 40 CFR 144.18 - Requirements for Class VI wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Requirements for Class VI wells. 144.18 Section 144.18 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements §...

  5. 40 CFR 144.27 - Requiring other information.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Section 144.27 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization of Underground Injection by Rule § 144.27... determine whether a well may be endangering an underground source of drinking water in violation of §...

  6. 40 CFR 144.11 - Prohibition of unauthorized injection.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Prohibition of unauthorized injection. 144.11 Section 144.11 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements §...

  7. 40 CFR 144.24 - Class V wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization of Underground Injection by Rule § 144.24 Class V wells. (a) A Class V injection well is authorized by rule, subject to the conditions in § 144.84 (b) Duration of...

  8. 40 CFR 144.24 - Class V wells.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization of Underground Injection by Rule § 144.24 Class V wells. (a) A Class V injection well is authorized by rule, subject to the conditions in § 144.84 (b) Duration of...

  9. 40 CFR 144.11 - Prohibition of unauthorized injection.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Prohibition of unauthorized injection. 144.11 Section 144.11 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM General Program Requirements §...

  10. 33 CFR 144.01-30 - First-aid kit.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false First-aid kit. 144.01-30 Section...) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-30 First-aid kit. On each manned platform a first-aid kit approved by the Commandant or the U.S. Bureau of Mines shall...

  11. 33 CFR 144.01-30 - First-aid kit.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false First-aid kit. 144.01-30 Section...) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-30 First-aid kit. On each manned platform a first-aid kit approved by the Commandant or the U.S. Bureau of Mines shall...

  12. 33 CFR 144.01-30 - First-aid kit.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false First-aid kit. 144.01-30 Section...) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Manned Platforms § 144.01-30 First-aid kit. On each manned platform a first-aid kit approved by the Commandant or the U.S. Bureau of Mines shall...

  13. 40 CFR 144.6 - Classification of wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Classification of wells. 144.6 Section...) UNDERGROUND INJECTION CONTROL PROGRAM General Provisions § 144.6 Classification of wells. Injection wells are classified as follows: (a) Class I. (1) Wells used by generators of hazardous waste or owners or operators...

  14. 40 CFR 144.6 - Classification of wells.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 22 2010-07-01 2010-07-01 false Classification of wells. 144.6 Section...) UNDERGROUND INJECTION CONTROL PROGRAM General Provisions § 144.6 Classification of wells. Injection wells are classified as follows: (a) Class I. (1) Wells used by generators of hazardous waste or owners or operators...

  15. 19 CFR 144.38 - Withdrawal for consumption.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... for tax purposes required by § 275.81 of the regulations of the Internal Revenue Service (26 CFR § 275... textile category. Editorial Note: For Federal Register citations affecting § 144.38, see the List of CFR... 19 Customs Duties 2 2011-04-01 2011-04-01 false Withdrawal for consumption. 144.38 Section...

  16. 19 CFR 144.27 - Withdrawal from warehouse by transferee.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Withdrawal from warehouse by transferee. 144.27...; DEPARTMENT OF THE TREASURY (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS Transfer of Right To Withdraw Merchandise from Warehouse § 144.27 Withdrawal from warehouse by transferee. At any time...

  17. [Biochemical changes in rats under the influence of cesium chloride].

    PubMed

    Mel'nykova, N M; Iermishev, O V

    2013-01-01

    Cesium is lately accumulated actively in the environment, but its influence on human and animal organism is the least studied among heavy metals. It is shown that the action of cesium chloride in rats caused significant changes in blood chemistry, which are characterized by a decrease of total protein content, pH, an increase in the level of urea, creatinine, glucose and total hemoglobin. The results showed that potassium content in all the studied organs and tissues of poisoned rats decreases under the action of cesium chloride. Histological examination of the heart tissue in rats poisoned with cesium chloride indicates the onset of pathology of cardiovascular system. It was found out that use of the drug "Asparkam" reduces the negative effect of cesium chloride on the body of rats.

  18. Method for synthesizing pollucite from chabazite and cesium chloride

    DOEpatents

    Pereira, Candido

    1999-01-01

    A method for immobilizing waste chlorides salts containing radionuclides and hazardous nuclear material for permanent disposal, and in particular, a method for immobilizing waste chloride salts containing cesium, in a synthetic form of pollucite. The method for synthesizing pollucite from chabazite and cesium chloride includes mixing dry, non-aqueous cesium chloride with chabazite and heating the mixture to a temperature greater than the melting temperature of the cesium chloride, or above about 700.degree. C. The method further comprises significantly improving the rate of retention of cesium in ceramic products comprised of a salt-loaded zeolite by adding about 10% chabazite by weight to the salt-loaded zeolite prior to conversion at elevated temperatures and pressures to the ceramic composite.

  19. Method for synthesizing pollucite from chabazite and cesium chloride

    DOEpatents

    Pereira, C.

    1999-02-23

    A method is described for immobilizing waste chlorides salts containing radionuclides and hazardous nuclear material for permanent disposal, and in particular, a method is described for immobilizing waste chloride salts containing cesium, in a synthetic form of pollucite. The method for synthesizing pollucite from chabazite and cesium chloride includes mixing dry, non-aqueous cesium chloride with chabazite and heating the mixture to a temperature greater than the melting temperature of the cesium chloride, or above about 700 C. The method further comprises significantly improving the rate of retention of cesium in ceramic products comprised of a salt-loaded zeolite by adding about 10% chabazite by weight to the salt-loaded zeolite prior to conversion at elevated temperatures and pressures to the ceramic composite. 3 figs.

  20. Investigations of negative and positive cesium ion species

    NASA Technical Reports Server (NTRS)

    Chanin, L. M.

    1978-01-01

    A direct test is provided of the hypothesis of negative ion creation at the anode or collector of a diode operating under conditions simulating a cesium thermionic converter. The experimental technique involves using direct ion sampling through the collector electrode with mass analysis using a quadrupole mass analyzer. Similar measurements are undertaken on positive ions extracted through the emitter electrode. Measurements were made on a variety of gases including pure cesium, helium-cesium mixtures and cesium-hydrogen as well as cesium-xenon mixtures. The gas additive was used primarily to aid in understanding the negative ion formation processes. Measurements were conducted using emitter (cathode) temperatures up to about 1000 F. The major negative ion identified through the collector was Cs(-) with minor negative ion peaks tentatively identified as H(-), H2(-), H3(-), He(-) and a mass 66. Positive ions detected were believed to be Cs(+), Cs2(+) and Cs3(+).

  1. A combined cesium-strontium extraction/recovery process

    SciTech Connect

    Horwitz, E.P.; Dietz, M.L.; Jensen, M.P.

    1996-03-01

    A new solvent extraction process for the simultaneous extraction of cesium and strontium from acidic nitrate media is described. This process uses a solvent formulation comprised of 0.05 M di-t-butylcyclohexano-18-crown-6 (DtBuCH18C6), 0.1 M Crown 100{prime} (a proprietary, cesium-selective derivative of dibenzo-18-crown-6), 1.2 M tributyl phosphate (TBP), and 5% (v/v) lauryl nitrile in an isoparaffinic hydrocarbon diluent. Distribution ratios for cesium and strontium from 4 M nitric acid are 4.13 and 3.46, respectively. A benchtop batch countercurrent extraction experiment indicates that >98% of the cesium and strontium initially present in the feed solution can be removed in only four extraction stages. Through proper choice of extraction and strip conditions, extracted cesium and strontium can be recovered either together or individually.

  2. Evaluation of electrochemical ion exchange for cesium elution

    SciTech Connect

    Bontha, J.D.; Kurath, D.E.; Surma, J.E.; Buehler, M.F.

    1996-04-01

    Electrochemical elution was investigated as an alternative method to acid elution for the desorption of cesium from loaded ion exchange resins. The approach was found to have several potential advantages over existing technologies, in particular, electrochemical elution eliminates the need for addition of chemicals to elute cesium from the ion exchange resin. Also, since, in the electrochemical elution process the eluting solution is not in direct contact with the ion exchange material, very small volumes of the eluting solution can be used in a complete recycle mode in order to minimize the total volume of the cesium elute. In addition, the cesium is eluted as an alkaline solution that does not require neutralization with caustic to meet the tank farm specifications. Other advantages include easy incorporation of the electrochemical elution process into the present cesium recovery schemes.

  3. Trapping behavior of gaseous cesium by fly ash filters.

    PubMed

    Shin, J M; Park, J J; Song, K C; Kim, J H

    2009-01-01

    The high volatility of a gaseous form and its high chemical reactivity make a cesium emission control very difficult work. In this study, fly ash filters were tested for the removal of gaseous cesium from a hot flue gas under air and hydrogen conditions at 700-1000 degrees C. Tests were performed by using a simulated gaseous cesium volatilized from Cs(2)SiO(3) in a two-zone furnace. Fly ash filter was found to be the most promising filter for trapping the gaseous cesium. The results of the trapping tests are presented, along with the effects of the temperature, superficial gas velocity, and carrier gas on the cesium trapping quantity.

  4. Plutonium and Cesium Colloid Mediated Transport

    NASA Astrophysics Data System (ADS)

    Boukhalfa, H.; Dittrich, T.; Reimus, P. W.; Ware, D.; Erdmann, B.; Wasserman, N. L.; Abdel-Fattah, A. I.

    2013-12-01

    Plutonium and cesium have been released to the environment at many different locations worldwide and are present in spent fuel at significant levels. Accurate understanding of the mechanisms that control their fate and transport in the environment is important for the management of contaminated sites, for forensic applications, and for the development of robust repositories for the disposal of spent nuclear fuel and nuclear waste. Plutonium, which can be present in the environment in multiple oxidations states and various chemical forms including amorphous oxy(hydr)oxide phases, adsorbs/adheres very strongly to geological materials and is usually immobile in all its chemical forms. However, when associated with natural colloids, it has the potential to migrate significant distances from its point of release. Like plutonium, cesium is not very mobile and tends to remain adhered to geological materials near its release point, although its transport can be enhanced by natural colloids. However, the reactivity of plutonium and cesium are very different, so their colloid-mediated transport might be significantly different in subsurface environments. In this study, we performed controlled experiments in two identically-prepared columns; one dedicated to Pu and natural colloid transport experiments, and the other to Cs and colloid experiments. Multiple flow-through experiments were conducted in each column, with the effluent solutions being collected and re-injected into the same column two times to examine the persistence and scaling behavior of the natural colloids, Pu and Cs. The data show that that a significant fraction of colloids were retained in the first elution through each column, but the eluted colloids collected from the first run transported almost conservatively in subsequent runs. Plutonium transport tracked natural colloids in the first run but deviated from the transport of natural colloids in the second and third runs. Cesium transport tracked natural

  5. Negative and positive cesium ion studies

    NASA Technical Reports Server (NTRS)

    Kuehn, D. G.; Sutliff, D. E.; Chanin, L. M.

    1978-01-01

    Mass spectrometric analyses have been performed on the positive and negative species from discharges in Cs, He-Cs, and He-H2-Cs mixtures. Sampling was conducted through the electrodes of normal glow discharges and from close-spaced heated-cathode conditions, which approximate a cesium thermionic converter. No negative Cs ions were observed for Cs pressures less than .01 torr. Identified species included Cs(+), Cs2(+), Cs(-), and what appeared to be multiply charged ions. Low-mass negative and positive ions attributed to H2 were observed when an He-H2 mixture was also present in the discharge region.

  6. Cesium accumulation of Rhodococcus erythropolis CS98 strain immobilized in hydrogel matrices.

    PubMed

    Takei, Takayuki; Yamasaki, Mika; Yoshida, Masahiro

    2014-04-01

    Agarose gels were superior to calcium-alginate gels for immobilizing Rhodococcus erythropolis CS98 strain to remove cesium from water. Suitable incubation time of the immobilized cells in cesium solutions, cell number in the gels and volume ratio of the cesium solution to the gels for efficient cesium removal were identified.

  7. Marking cabbage looper (Lepidoptera: Noctuidae) with cesium

    SciTech Connect

    Moss, J.I.; Van Steenwyk, R.A.

    1984-04-01

    Cabbage loopers (CL), Trichoplusia ni (Huebner), adults reared on artificial diet containing 1 x 10/sup -2/ M and 1 x 10/sup -3/ M CsCl were marked with cesium (Cs) which could be detected by atomic absorption spectrophotometry. The cesium marks from the 10/sup -2/ M CsCl diet were sufficient to last the expected lifetime of the insects. CL reared on diet containing 1 x 10/sup -1/ M CsCl did not survive. Unmarked females mated to males reared on artificial diet containing 1 x 10/sup -2/ M and 1 x 10/sup -3/ M CsCl were marked. CL reared on cotton plants sprayed with Cs solutions of 1000, 5000, and 10,000 ..mu..g/ml were marked sufficiently to last the expected lifetime of the insect. CL adults exposed for 72 h to cotton plants sprayed with Cs solutions of 1000, 5000, and 10,000 ..mu..g/ml were marked sufficiently to last the expected lifetime of the insect. CL adults reared from field cotton plants sprayed with CsCl solutions at rates of 1.24, 2.47, and 4.94 kg of CsCl per ha were marked. 12 references, 1 figure, 5 tables.

  8. Intense non-relativistic cesium ion beam

    SciTech Connect

    Lampel, M.C.

    1984-02-01

    The Heavy Ion Fusion group at Lawrence Berkeley Laboratory has constructed the One Ampere Cesium Injector as a proof of principle source to supply an induction linac with a high charge density and high brightness ion beam. This is studied here. An electron beam probe was developed as the major diagnostic tool for characterizing ion beam space charge. Electron beam probe data inversion is accomplished with the EBEAM code and a parametrically adjusted model radial charge distribution. The longitudinal charge distribution was not derived, although it is possible to do so. The radial charge distribution that is derived reveals an unexpected halo of trapped electrons surrounding the ion beam. A charge fluid theory of the effect of finite electron temperature on the focusing of neutralized ion beams (Nucl. Fus. 21, 529 (1981)) is applied to the problem of the Cesium beam final focus at the end of the injector. It is shown that the theory's predictions and assumptions are consistent with the experimental data, and that it accounts for the observed ion beam radius of approx. 5 cm, and the electron halo, including the determination of an electron Debye length of approx. 10 cm.

  9. Cesium chloride compatibility testing program: Final report

    SciTech Connect

    Bryan, G.H.

    1989-11-01

    The US Department of Energy is considering the geologic disposal of the doubly encapsulated cesium chloride (CsCl) produced at the Waste Encapsulation and Storage Facility (WESF). Reliable estimates of long-term corrosion of the inner capsule material by the CsCl under repository storage conditions are needed to assess the hazards associated with geologic disposal of the fission product Cs. The Cesium Chloride Compatibility Program was carried out at PNL to obtain the short-term corrosion data required to accurately estimate long-term attack. In the compatibility tests six standard WESF CsCl capsules were placed vertically in individual insulated containers and allowed to self-heat to a nominal maximum 316L SS/CsCl interface temperature of 450{degree}C. The capsules were held at temperature for times ranging from 0.25 to 6 years. When a test was completed, the capsule was removed from the container and sectioned. Four samples were cut from the inner capsule at prescribed locations and subjected to metallographic examination. Corrosion was determined from photomicrographs of the samples. 16 refs., 41 figs., 16 tabs.

  10. Adsorption of cesium on cement mortar from aqueous solutions.

    PubMed

    Volchek, Konstantin; Miah, Muhammed Yusuf; Kuang, Wenxing; DeMaleki, Zack; Tezel, F Handan

    2011-10-30

    The adsorption of cesium on cement mortar from aqueous solutions was studied in series of bench-scale tests. The effects of cesium concentration, temperature and contact time on process kinetics and equilibrium were evaluated. Experiments were carried out in a range of initial cesium concentrations from 0.0103 to 10.88 mg L(-1) and temperatures from 278 to 313 K using coupons of cement mortar immersed in the solutions. Non-radioactive cesium chloride was used as a surrogate of the radioactive (137)Cs. Solution samples were taken after set periods of time and analyzed by inductively coupled plasma mass spectroscopy. Depending on the initial cesium concentration, its equilibrium concentration in solution ranged from 0.0069 to 8.837 mg L(-1) while the respective surface concentration on coupons varied from 0.0395 to 22.34 μg cm(-2). Equilibrium test results correlated well with the Freundlich isotherm model for the entire test duration. Test results revealed that an increase in temperature resulted in an increase in adsorption rate and a decrease in equilibrium cesium surface concentration. Among several kinetic models considered, the pseudo-second order reaction model was found to be the best to describe the kinetic test results in the studied range of concentrations. The adsorption activation energy determined from Arrhenius equation was found to be approximately 55.9 kJ mol(-1) suggesting that chemisorption was the prevalent mechanism of interaction between cesium ions and cement mortar.

  11. Thermionic converter with differentially heated cesium-oxygen source and method of operation

    DOEpatents

    Rasor, Ned S.; Riley, David R.; Murray, Christopher S.; Geller, Clint B.

    2000-01-01

    A thermionic converter having an emitter, a collector, and a source of cesium vapor is provided wherein the source of cesium vapor is differentially heated so that said source has a hotter end and a cooler end, with cesium vapor evaporating from said hotter end into the space between the emitter and the collector and with cesium vapor condensing at said cooler end. The condensed cesium vapor migrates through a porous element from the cooler end to the hotter end.

  12. Thermionic converter with differentially heated cesium-oxygen source and method of operation

    SciTech Connect

    Rasor, N.S.; Riley, D.R.; Murray, C.S.; Geller, C.B.

    1998-12-01

    A thermionic converter having an emitter, a collector, and a source of cesium vapor is provided, wherein the source of cesium vapor is differentially heated so that said source has a hotter end and a cooler end, with cesium vapor evaporating from said hotter end into the space between the emitter and the collector and with cesium vapor condensing at said cooler end. The condensed cesium vapor migrates through a porous element from the cooler end to the hotter end.

  13. Structural Studies of Cesium, Lithium/Cesium, and Sodium/Cesium Bis(trimethylsilyl)amide (HMDS) Complexes.

    PubMed

    Ojeda-Amador, Ana I; Martínez-Martínez, Antonio J; Kennedy, Alan R; O'Hara, Charles T

    2016-06-01

    Reacting cesium fluoride with an equimolar n-hexane solution of lithium bis(trimethylsilyl)amide (LiHMDS) allows the isolation of CsHMDS (1) in 80% yield (after sublimation). This preparative route to 1 negates the need for pyrophoric Cs metal or organocesium reagents in its synthesis. If a 2:1 LiHMDS:CsF ratio is employed, the heterobimetallic polymer [LiCs(HMDS)2]∞ 2 was isolated (57% yield). By combining equimolar quantities of NaHMDS and CsHMDS in hexane/toluene [toluene·NaCs(HMDS)]∞ 3 was isolated (62% yield). Attempts to prepare the corresponding potassium-cesium amide failed and instead yielded the known monometallic polymer [toluene·Cs(HMDS)]∞ 4. With the aim of expanding the structural diversity of Cs(HMDS) species, 1 was reacted with several different Lewis basic donor molecules of varying denticity, namely, (R,R)-N,N,N',N'-tetramethylcyclohexane-1,2-diamine [(R,R)-TMCDA] and N,N,N',N'-tetramethylethylenediamine (TMEDA), N,N,N',N″,N″-pentamethyldiethylenetriamine (PMDETA), tris[2-(dimethylamino)ethyl]amine (Me6-TREN) and tris[2-(2-methoxyethoxy)ethyl]amine (TMEEA). These reactions yielded dimeric [donor·NaCs(HMDS)2]2 5-7 [where donor is (R,R)-TMCDA, TMEDA and PMDETA respectively], the tetranuclear "open"-dimer [{Me6-TREN·Cs(HMDS)}2{Cs(HMDS)}2] 8 and the monomeric [TMEEA·Cs(HMDS)] 9. Complexes 2, 3, and 5-9 were characterized by X-ray crystallography and in solution by multinuclear NMR spectroscopy. PMID:27177080

  14. 40 CFR 144.62 - Cost estimate for plugging and abandonment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... abandonment. 144.62 Section 144.62 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.62 Cost estimate for plugging and abandonment. (a) The owner or operator... accordance with the plugging and abandonment plan as specified in §§ 144.28 and 144.51. The plugging...

  15. 40 CFR 144.62 - Cost estimate for plugging and abandonment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... abandonment. 144.62 Section 144.62 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.62 Cost estimate for plugging and abandonment. (a) The owner or operator... accordance with the plugging and abandonment plan as specified in §§ 144.28 and 144.51. The plugging...

  16. 40 CFR 144.62 - Cost estimate for plugging and abandonment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... abandonment. 144.62 Section 144.62 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.62 Cost estimate for plugging and abandonment. (a) The owner or operator... accordance with the plugging and abandonment plan as specified in §§ 144.28 and 144.51. The plugging...

  17. 40 CFR 144.62 - Cost estimate for plugging and abandonment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... abandonment. 144.62 Section 144.62 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.62 Cost estimate for plugging and abandonment. (a) The owner or operator... accordance with the plugging and abandonment plan as specified in §§ 144.28 and 144.51. The plugging...

  18. Method for removing cesium from a nuclear reactor coolant

    DOEpatents

    Colburn, Richard P.

    1986-01-01

    A method of and system for removing cesium from a liquid metal reactor coolant including a carbon packing trap in the primary coolant system for absorbing a major portion of the radioactive cesium from the coolant flowing therethrough at a reduced temperature. A regeneration subloop system having a secondary carbon packing trap is selectively connected to the primary system for isolating the main trap therefrom and connecting it to the regeneration system. Increasing the temperature of the sodium flowing through the primary trap diffuses a portion of the cesium

  19. 7 CFR 1260.144 - Nominee's agreement to serve.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ....144 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE BEEF PROMOTION AND RESEARCH Beef Promotion and Research Order Cattlemen's Beef Promotion and Research...

  20. 40 CFR 144.40 - Termination of permits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.40 Termination of permits. (a) The... in the application or during the permit issuance process to disclose fully all relevant facts, or...

  1. 9 CFR 319.144 - Whole hog sausage.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... CERTIFICATION DEFINITIONS AND STANDARDS OF IDENTITY OR COMPOSITION Sausage Generally: Fresh Sausage § 319.144... 50 percent fat. To facilitate chopping or mixing, water or ice may be used in an amount not to...

  2. 33 CFR 144.10-10 - Other lifesaving equipment.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Unmanned Platforms § 144.10-10 Other lifesaving equipment. Any lifesaving equipment on an unmanned platform that is not required in §...

  3. 33 CFR 144.10-10 - Other lifesaving equipment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Unmanned Platforms § 144.10-10 Other lifesaving equipment. Any lifesaving equipment on an unmanned platform that is not required in §...

  4. 33 CFR 144.10-10 - Other lifesaving equipment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Unmanned Platforms § 144.10-10 Other lifesaving equipment. Any lifesaving equipment on an unmanned platform that is not required in §...

  5. 33 CFR 144.10-10 - Other lifesaving equipment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Unmanned Platforms § 144.10-10 Other lifesaving equipment. Any lifesaving equipment on an unmanned platform that is not required in §...

  6. 33 CFR 144.10-10 - Other lifesaving equipment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES LIFESAVING APPLIANCES Unmanned Platforms § 144.10-10 Other lifesaving equipment. Any lifesaving equipment on an unmanned platform that is not required in §...

  7. 40 CFR 440.144 - New source performance standards (NSPS).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Gold Placer Mine Subcategory § 440.144... in designating new source gold placer mines, take into account and base the decision on whether...

  8. Near-yrast structure of Cs142 and Cs144

    NASA Astrophysics Data System (ADS)

    Rząca-Urban, T.; Genevey, J.; Materna, T.; Urban, W.; Smith, A. G.; Pinston, J. A.; Simpson, G. S.; Sadowski, M. P.; Köster, U.; Faust, H.; Bail, A.; Mathieu, L.; Serot, O.; Michel-Sendis, F.; Ahmad, I.

    2009-12-01

    Excited states in Cs142 and Cs144, populated in the spontaneous fission of Cm248 and Cf252 and in thermal neutron-induced fission of U235 and Am242 were studied by means of γ spectroscopy using the EUROGAM2 and Gammasphere multidetector Ge arrays and the LOHENGRIN fission-fragment separator, respectively. In Cs142, a band and an isomer with a half-life of T1/2=11(3) ns have been identified. Spins and parities have been proposed for excited levels in this nucleus. In Cs144 excited levels have been observed. A T1/2=1.1(1) μs isomer was found with a γ cascade, which probably feeds this isomer. There is also an indication of a nanosecond isomer in Cs144. Quasiparticle-rotor model calculations done in this work allowed proton-neutron configurations to be proposed for levels in Cs142 and Cs144.

  9. 40 CFR 440.144 - New source performance standards (NSPS).

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Gold Placer Mine Subcategory § 440.144... in designating new source gold placer mines, take into account and base the decision on whether...

  10. SLAC E144 Plots, Simulation Results, and Data

    DOE Data Explorer

    The 1997 E144 experiments at the Stanford Linear Accelerator Center (SLAC) utilitized extremely high laser intensities and collided huge groups of photons together so violently that positron-electron pairs were briefly created, actual particles of matter and antimatter. Instead of matter exploding into heat and light, light actually become matter. That accomplishment opened a new path into the exploration of the interactions of electrons and photons or quantum electrodynamics (QED). The E144 information at this website includes Feynmann Diagrams, simulation results, and data files. See also aseries of frames showing the E144 laser colliding with a beam electron and producing an electron-positron pair at http://www.slac.stanford.edu/exp/e144/focpic/focpic.html and lists of collaborators' papers, theses, and a page of press articles.

  11. Atmospheric transmission for cesium DPAL using TDLAS

    NASA Astrophysics Data System (ADS)

    Rice, Christopher A.; Perram, Glen P.

    2012-03-01

    The cesium (Cs) Diode Pumped Alkali Laser (DPAL) operates near 894 nm, in the vicinity of atmospheric water vapor absorption lines. An open-path Tunable Diode Laser Absorption (TDLAS) system composed of narrow band (~300 kHz) diode laser fiber coupled to a 12" Ritchey-Chrétien transmit telescope has been used to study the atmospheric transmission characteristics of Cs DPALs over extended paths. The ruggedized system has been field deployed and tested for propagation distances of greater than 1 km. By scanning the diode laser across many free spectral ranges, many rotational absorption features are observed. Absolute laser frequency is monitored with a High Finesse wavemeter to an accuracy of less than 10 MHz. Phase sensitive detection is employed with an absorbance of less than 1% observable under field conditions.

  12. 40 CFR 144.52 - Establishing permit conditions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... in §§ 144.55 and 146.7 (3) Operation requirements as set forth in 40 CFR part 146; the permit shall... waste, as set forth in § 144.14. (5) Monitoring and reporting requirements as set forth in 40 CFR part... applicable analytical methods cited and described in table I of 40 CFR 136.3 or in appendix III of 40...

  13. Low-energy vibrational dynamics of cesium borate glasses.

    PubMed

    Crupi, C; D'Angelo, G; Vasi, C

    2012-06-01

    Low-temperature specific heat and inelastic light scattering experiments have been performed on a series of cesium borate glasses and on a cesium borate crystal. Raman measurements on the crystalline sample have revealed the existence of cesium rattling modes in the same frequency region where glasses exhibit the boson peak (BP). These localized modes are supposed to overlap with the BP in cesium borate glasses affecting its magnitude. Their influence on the low frequency vibrational dynamics in glassy samples has been considered, and their contribution to the specific heat has been estimated. Evidence for a relation between the changes of the BP induced by the increased amount of metallic oxide and the variations of the elastic medium has been provided.

  14. Low-work-function surfaces produced by cesium carbonate decomposition

    NASA Technical Reports Server (NTRS)

    Briere, T. R.; Sommer, A. H.

    1977-01-01

    Cesium carbonate (Cs2CO3) was heated to the decomposition temperature of approximately 600 C. The nonvolatile decomposition products were condensed on a nickel substrate while the carbon dioxide was removed by pumping. The deposited material is characterized by an effective work function of between 1.05 and 1.15 eV at 450 K and by photoemission in the visible and near-infrared region of the spectrum. It is suggested that the deposited material consists of Cs2O, possibly Cs2O2, and adsorbed cesium. Silver, evaporated from a heated silver bead, produced the typical photoemissive and thermionic properties of a silver-oxygen-cesium (S-1) photocathode. The material may be of interest for thermionic energy converters and for the formation of silver-oxygen-cesium photocathodes.

  15. Timescale algorithms combining cesium clocks and hydrogen masers

    NASA Technical Reports Server (NTRS)

    Breakiron, Lee A.

    1992-01-01

    The United States Naval Observatory (USNO) atomic timescale, formerly based on an ensemble of cesium clocks, is now produced by an ensemble of cesium clocks and hydrogen masers. In order to optimize stability and reliability, equal clock weighting has been replaced by a procedure reflecting the relative, time-varying noise characteristics of the two different types of clocks. Correlation of frequency drift is required, and residual drift is avoided by the eventual complete deweighting of the masers.

  16. Cesium dynamics in long pulse operation of negative hydrogen ion sources for fusion

    SciTech Connect

    Fantz, U.; Wimmer, C.

    2012-02-15

    Large scale negative hydrogen ion sources operating stable for 1 h (cw mode) are required for the neutral beam heating system of the fusion experiment ITER. The formation of negative hydrogen ions relies on the surface effect for which cesium is evaporated into the source. In order to monitor the cesium dynamics the laser absorption spectroscopy technique is applied to the long pulse test facility MANITU. In the vacuum phase, without plasma operation the evaporation of cesium and the built-up of the cesium in the source are measured. Typical neutral cesium densities are 10{sup 15} m{sup -3}. During plasma operation and after the plasma phase a high cesium dynamics is observed, showing also depletion of cesium during long pulses with low cesium amount. The co-extracted electron current decreases with the cesium amount to a certain level whereas the ion current indicates an optimum density range.

  17. Effects of cesium ions and cesium vapor on selected ATS-F samples. [thermal control coating degradation

    NASA Technical Reports Server (NTRS)

    Kemp, R. F.; Beynon, J. C.; Hall, D. F.; Luedke, E. E.

    1973-01-01

    Thermal control coating samples were subjected to cesium ion beam and vapor exposures. Degradation of solar absorptance and infrared emittance were measured. Solar cells and samples selected from surfaces on the ATS-F spacecraft likely to experience ion or vapor impingement were bombarded by 10-volt cesium ions. Other samples were subjected to high levels of cesium vapor. Aluminum and white paint were backsputtered by 550-volt cesium ions onto selected samples. For direct bombardment, the threshold for ion-induced property changes was above five-thousand trillion ions/sq cm. With material sputtered from a 450-sq cm target onto samples 36 cm distant, the threshold for noticeable effects was above 5 times 10 to the 17-th power ions/sq cm.

  18. Micro-PIXE evaluation of radioactive cesium transfer in contaminated soil samples

    NASA Astrophysics Data System (ADS)

    Fujishiro, F.; Ishii, K.; Matsuyama, S.; Arai, H.; Ishizaki, A.; Osada, N.; Sugai, H.; Kusano, K.; Nozawa, Y.; Yamauchi, S.; Karahashi, M.; Oshikawa, S.; Kikuchi, K.; Koshio, S.; Watanabe, K.; Suzuki, Y.

    2014-01-01

    Micro-PIXE analysis has been performed on two soil samples with high cesium activity concentrations. These soil samples were contaminated by fallout from the accident at Fukushima Daiichi Nuclear Power Plant. One exhibits a radioactive cesium transfer of ˜0.01, and the other shows a radioactive cesium transfer of less than 0.001, even though both samples have high cesium activity concentrations exceeding 10,000 Bq/kg. X-ray spectra and elemental images of the soil samples revealed the presence of chlorine, which can react with cesium to produce an inorganic soluble compound, and phosphorus-containing cesium-capturable organic compounds.

  19. Spectroscopy of {sup 144}Ho using recoil-isomer tagging

    SciTech Connect

    Mason, P. J. R; Cullen, D. M.; Scholey, C.; Greenlees, P. T.; Jakobsson, U.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Nyman, M.; Peura, P.; Puurunen, A.; Rahkila, P.; Ruotsalainen, P.; Sorri, J.; Saren, J.; Uusitalo, J.; Xu, F. R.

    2010-02-15

    Excited states in the proton-unbound odd-odd nucleus {sup 144}Ho have been populated using the {sup 92}Mo({sup 54}Fe,pn){sup 144}Ho reaction and studied using the recoil-isomer-tagging technique. The alignment properties and signature splitting of the rotational band above the I{sup p}i=(8{sup +}){sup 144m}Ho isomer have been analyzed and the isomer confirmed to have a pih{sub 11/2} x nuh{sub 11/2} two-quasiparticle configuration. The configuration-constrained blocking method has been used to calculate the shapes of the ground and isomeric states, which are both predicted to have triaxial nuclear shapes with |gamma|approx =24 deg.

  20. Exotic stable cesium polynitrides at high pressure

    DOE PAGES

    Peng, Feng; Han, Yunxia; Liu, Hanyu; Yao, Yansun

    2015-11-19

    New polynitrides containing metastable forms of nitrogen are actively investigated as potential high energy-density materials. Using a structure search method based on the CALYPSO methodology, we investigated the stable stoichiometries and structures of cesium polynitrides at high pressures. Along with the CsN3, we identified five new stoichiometric compounds (Cs3N, Cs2N, CsN, CsN2, and CsN5) with interesting structures that may be experimentally synthesizable at modest pressures (i.e., less than 50 GPa). Nitrogen species in the predicted structures have various structural forms ranging from single atom (N) to highly endothermic molecules (N2, N3 , N4, N5, N6) and chains (N∞). Polymeric chainsmore » of nitrogen were found in the high-pressure C2/c phase of CsN2. This structure contains a substantially high content of single N-N bonds that exceeds the previously known nitrogen chains in pure forms, and also exhibit metastability at ambient conditions. We also identified a very interesting CsN crystal that contains novel N44- anion. In conclusion, to our best knowledge, this is the first time a charged N4 species being reported. Results of the present study suggest that it is possible to obtain energetic polynitrogens in main-group nitrides under high pressure.« less

  1. Exotic stable cesium polynitrides at high pressure

    NASA Astrophysics Data System (ADS)

    Peng, Feng; Han, Yunxia; Liu, Hanyu; Yao, Yansun

    2015-11-01

    New polynitrides containing metastable forms of nitrogen are actively investigated as potential high-energy-density materials. Using a structure search method based on the CALYPSO methodology, we investigated the stable stoichiometries and structures of cesium polynitrides at high pressures. Along with the CsN3, we identified five new stoichiometric compounds (Cs3N, Cs2N, CsN, CsN2, and CsN5) with interesting structures that may be experimentally synthesizable at modest pressures (i.e., less than 50 GPa). Nitrogen species in the predicted structures have various structural forms ranging from single atom (N) to highly endothermic molecules (N2, N3, N4, N5, N6) and chains (N∞). Polymeric chains of nitrogen were found in the high-pressure C2/c phase of CsN2. This structure contains a substantially high content of single N-N bonds that exceeds the previously known nitrogen chains in pure forms, and also exhibit metastability at ambient conditions. We also identified a very interesting CsN crystal that contains novel N44- anion. To our best knowledge, this is the first time a charged N4 species being reported. Results of the present study suggest that it is possible to obtain energetic polynitrogens in main-group nitrides under high pressure.

  2. Cesium-137 levels detected in Georgia otters

    SciTech Connect

    Halbrook, R.S.; Jenkins, J.H.

    1988-11-01

    Beginning in the 1940's and continuing through the 50's and early 60's, nuclear devices were tested by aerial detonation in the United States and other countries around the world. Cesium-137 (/sup 137/Cs) is one of the most important radionuclide by-products due to its abundance and slow decay (30-year half-life). The uptake of /sup 137/Cs in animal tissue is the result of its similarity to potassium. The somatic and genetic effects of /sup 137/Cs, along with its effect on reproductive cells, can pose great hazards to wildlife species. A reported buildup of /sup 137/Cs in white-tailed deer in the lower coastal plain of Georgia during the 1960's was followed by a gradual decline during the 1970's. Although numerous studies have involved terrestrial mammals of Georgia, few have involved aquatic mammals such as the river otter. With continued atmospheric testing by some foreign countries and the increased use of nuclear power as an energy source, there is a need for continued monitoring of radionuclides in wildlife to ascertain the quality of the environment. This study was initiated as part of an overall study of environmental pollutants in the river otter of Georgia and deals with analysis of the /sup 137/Cs accumulations in this species.

  3. Exotic stable cesium polynitrides at high pressure

    PubMed Central

    Peng, Feng; Han, Yunxia; Liu, Hanyu; Yao, Yansun

    2015-01-01

    New polynitrides containing metastable forms of nitrogen are actively investigated as potential high-energy-density materials. Using a structure search method based on the CALYPSO methodology, we investigated the stable stoichiometries and structures of cesium polynitrides at high pressures. Along with the CsN3, we identified five new stoichiometric compounds (Cs3N, Cs2N, CsN, CsN2, and CsN5) with interesting structures that may be experimentally synthesizable at modest pressures (i.e., less than 50 GPa). Nitrogen species in the predicted structures have various structural forms ranging from single atom (N) to highly endothermic molecules (N2, N3, N4, N5, N6) and chains (N∞). Polymeric chains of nitrogen were found in the high-pressure C2/c phase of CsN2. This structure contains a substantially high content of single N-N bonds that exceeds the previously known nitrogen chains in pure forms, and also exhibit metastability at ambient conditions. We also identified a very interesting CsN crystal that contains novel N44− anion. To our best knowledge, this is the first time a charged N4 species being reported. Results of the present study suggest that it is possible to obtain energetic polynitrogens in main-group nitrides under high pressure. PMID:26581175

  4. CACI: The Cesium-137 Agricultural Commodities Irradiator

    SciTech Connect

    Not Available

    1986-12-01

    This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, IV, provides specifications as developed for the CACI final design.

  5. CACI: The Cesium-137 Agricultural Commodities Irradiator

    SciTech Connect

    Not Available

    1986-12-19

    This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume, Volume VII, describes Safety Analysis, Thermal Analysis, and Thermal Testing.

  6. CACI: The Cesium-137 Agricultural Commodities Irradiator

    SciTech Connect

    Not Available

    1986-12-19

    This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This Volume V, describes plans, criteria, and requirements.

  7. CACI: The Cesium-137 Agricultural Commodities Irradiator

    SciTech Connect

    Not Available

    1986-12-19

    This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the 137 Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. The CACI final design is described in eight volumes. This volume Volume III, describes the Shielding Window.

  8. CACI: The Cesium-137 Agricultural Commodities Irradiator

    SciTech Connect

    Not Available

    1986-12-19

    This report provides a complete description of the final detailed design of the Cesium-137 Agricultural Commodities Irradiator (CACI). The design was developed and successfully completed by the Rocketdyne Division of Rockwell International for the US Department of Energy (DOE). The CACI project was initiated in April 1985 under DOE's Byproducts Utilization Program, with the objectives of transferring food irradiation technology to the industry and thereby demonstrating a beneficial use for the [sup 137]Cs nuclear by-product isotope. As designed, CACI will meet the intended requirements for research, development, and demonstration of irradiation processing of food. Further, as shown in the safety analyses performed during the project, the design conforms to all the safety and licensing requirements set forth for the project. The original scope of the CACI project included completion of its construction. However, the project was terminated for the convenience of the government during the final design phase in February 1986 for lack of a specific site. This Volume, VI, provides the CACI final design features regarding shielding, mechanical and electrical.

  9. Gyromagnetic factors in {sup 144-150}Nd

    SciTech Connect

    Giannatiempo, A.

    2011-09-15

    The U(5) to SU(3) evolution of the nuclear structure in the even {sup 144-156}Nd isotopes has been investigated in the framework of the interacting boson approximation (IBA-2) model, taking into account the effect of the partial Z=64 subshell closure on the structure of the states of a collective nature. The analysis, which led to a satisfactory description of excitation energy patterns, quadrupole moments, and decay properties of the states (even when important M1 components were present in the transitions), is extended to the available data on g factors, in {sup 144-150}Nd. Their values are reasonably reproduced by the calculations.

  10. The diffusion of cesium, strontium, and europium in silicon carbide

    NASA Astrophysics Data System (ADS)

    Dwaraknath, S. S.; Was, G. S.

    2016-08-01

    A novel multi-layer diffusion couple was used to isolate the diffusion of strontium, europium and cesium in SiC without introducing radiation damage to SiC and at concentrations below the solubility limit for the fission products in SiC. Diffusion occurred by both bulk and grain boundary pathways for all three fission products between 900∘ C and 1 ,300∘ C. Cesium was the fastest diffuser below 1 ,100∘ C and the slowest above this temperature. Strontium and europium diffusion tracked very closely as a function of temperature for both bulk and grain boundary diffusion. Migration energies ranged from 1.0 eV to 5.7 eV for bulk diffusion and between 2.2 eV and 4.7 eV for grain boundary diffusion. These constitute the first measurements of diffusion of cesium, europium, and strontium in silicon carbide, and the magnitude of the cesium diffusion coefficient supports the premise that high quality TRISO fuel should have minimal cesium release.

  11. 19 CFR 144.37 - Withdrawal for exportation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... file. Editorial Note: For Federal Register citations affecting § 144.37, see the List of CFR Sections... Form 7512 or CBP Form 7501 must contain all of the statistical information as provided in § 141.61(e... exportation. (e) Weight, gauge, or measure. Merchandise in bulk and packaged articles which are...

  12. 45 CFR 144.102 - Scope and applicability.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...) For purposes of 45 CFR parts 144 through 148, all health insurance coverage is generally divided into two markets—the group market (set forth in 45 CFR part 146) and the individual market (set forth in 45 CFR part 148). 45 CFR part 146 limits the group market to insurance sold to employment-related...

  13. 45 CFR 144.102 - Scope and applicability.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...) For purposes of 45 CFR parts 144 through 148, all health insurance coverage is generally divided into two markets—the group market (set forth in 45 CFR part 146) and the individual market (set forth in 45 CFR part 148). 45 CFR part 146 limits the group market to insurance sold to employment-related...

  14. 144. VIEW OF EAST WALL OF CONTROL ROOM (214), LSB ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    144. VIEW OF EAST WALL OF CONTROL ROOM (214), LSB (BLDG. 751). PNEUMATIC SUPPLY PANEL ON LEFT; NITROGEN AND HELIUM PIPING AT TOP; PURGE PANEL AT BOTTOM OF PHOTOGRAPH. - Vandenberg Air Force Base, Space Launch Complex 3, Launch Pad 3 East, Napa & Alden Roads, Lompoc, Santa Barbara County, CA

  15. 33 CFR 144.01-10 - Equipment for life floats.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... other material provided it has equal strength to the size of manila rope specified and is not less than....01-10, see the List of CFR Sections Affected, which appears in the Finding Aids section of the...-10 Section 144.01-10 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  16. 40 CFR 144.52 - Establishing permit conditions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... chapter. (3) Operation requirements as set forth in 40 CFR part 146; the permit shall establish any... forth in § 144.14. (5) Monitoring and reporting requirements as set forth in 40 CFR part 146. The... analytical methods cited and described in table I of 40 CFR 136.3 or in appendix III of 40 CFR part 261 or...

  17. 40 CFR 144.52 - Establishing permit conditions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... chapter. (3) Operation requirements as set forth in 40 CFR part 146; the permit shall establish any... forth in § 144.14. (5) Monitoring and reporting requirements as set forth in 40 CFR part 146. The... analytical methods cited and described in table I of 40 CFR 136.3 or in appendix III of 40 CFR part 261 or...

  18. 40 CFR 144.52 - Establishing permit conditions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... chapter. (3) Operation requirements as set forth in 40 CFR part 146; the permit shall establish any... forth in § 144.14. (5) Monitoring and reporting requirements as set forth in 40 CFR part 146. The... analytical methods cited and described in table I of 40 CFR 136.3 or in appendix III of 40 CFR part 261 or...

  19. 40 CFR 144.52 - Establishing permit conditions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... chapter. (3) Operation requirements as set forth in 40 CFR part 146; the permit shall establish any... forth in § 144.14. (5) Monitoring and reporting requirements as set forth in 40 CFR part 146. The... analytical methods cited and described in table I of 40 CFR 136.3 or in appendix III of 40 CFR part 261 or...

  20. 29 CFR 4.144 - Contract modifications affecting amount.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 1 2011-07-01 2011-07-01 false Contract modifications affecting amount. 4.144 Section 4... modifications affecting amount. Where a contract that was originally issued in an amount not in excess of $2,500 is later modified so that its amount may exceed that figure, all the provisions of section 2(a)...

  1. 12 CFR 324.144 - Simplified supervisory formula approach (SSFA).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 5 2014-01-01 2014-01-01 false Simplified supervisory formula approach (SSFA....144 Simplified supervisory formula approach (SSFA). (a) General requirements for the SSFA. To use the SSFA to determine the risk weight for a securitization exposure, an FDIC-supervised institution...

  2. 12 CFR 3.144 - Simplified supervisory formula approach (SSFA).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 1 2014-01-01 2014-01-01 false Simplified supervisory formula approach (SSFA... Risk-Weighted Assets for Securitization Exposures § 3.144 Simplified supervisory formula approach (SSFA). (a) General requirements for the SSFA. To use the SSFA to determine the risk weight for...

  3. 22 CFR 144.150 - Program accessibility: Existing facilities.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., reassignment of services to accessible buildings, assignment of aides to beneficiaries, home visits, delivery... section. The agency, in making alterations to existing buildings, shall meet accessibility requirements to... alteration to an historic property is not required because of § 144.150(a)(2) or (a)(3), alternative...

  4. 22 CFR 144.150 - Program accessibility: Existing facilities.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., reassignment of services to accessible buildings, assignment of aides to beneficiaries, home visits, delivery... section. The agency, in making alterations to existing buildings, shall meet accessibility requirements to... alteration to an historic property is not required because of § 144.150(a)(2) or (a)(3), alternative...

  5. 22 CFR 144.150 - Program accessibility: Existing facilities.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., reassignment of services to accessible buildings, assignment of aides to beneficiaries, home visits, delivery... section. The agency, in making alterations to existing buildings, shall meet accessibility requirements to... alteration to an historic property is not required because of § 144.150(a)(2) or (a)(3), alternative...

  6. 33 CFR 144.30-5 - Exposure suits.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... MODU is documented may be used in lieu of suits approved under 46 CFR 160.071, provided that they are... may be used in lieu of lights approved under 46 CFR 161.012. ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Exposure suits. 144.30-5...

  7. 33 CFR 144.30-5 - Exposure suits.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... MODU is documented may be used in lieu of suits approved under 46 CFR 160.071, provided that they are... may be used in lieu of lights approved under 46 CFR 161.012. ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Exposure suits. 144.30-5...

  8. 33 CFR 144.30-5 - Exposure suits.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... MODU is documented may be used in lieu of suits approved under 46 CFR 160.071, provided that they are... may be used in lieu of lights approved under 46 CFR 161.012. ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Exposure suits. 144.30-5...

  9. 33 CFR 144.30-5 - Exposure suits.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... MODU is documented may be used in lieu of suits approved under 46 CFR 160.071, provided that they are... may be used in lieu of lights approved under 46 CFR 161.012. ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Exposure suits. 144.30-5...

  10. 45 CFR 144.101 - Basis and purpose.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES REQUIREMENTS RELATING TO HEALTH CARE ACCESS REQUIREMENTS RELATING TO HEALTH INSURANCE COVERAGE General Provisions § 144.101 Basis and purpose. (a) Part 146 of this subchapter implements requirements of Title XXVII of the Public Health Service Act (PHS Act, 42 U.S.C....

  11. 19 CFR 144.37 - Withdrawal for exportation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... circumstances. In the case of merchandise moving under cover of a TIR carnet, if the merchandise is not to be... the original copy (purchaser's copy) to the effect that goods purchased in a duty-free store will be... file. Editorial Note: For Federal Register citations affecting § 144.37, see the List of CFR...

  12. 17 CFR 144.1 - Service upon the Commission.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... RESPONSE TO SUBPOENAS OR OTHER DEMANDS OF A COURT § 144.1 Service upon the Commission. (a) Subject to... service of a demand directed to the Commission or to an employee of the Commission for documentary... demand must be addressed to the Secretary of the Commission, Three Lafayette Centre, 1155 21st Street,...

  13. 17 CFR 144.0 - Purpose and scope.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... RESPONSE TO SUBPOENAS OR OTHER DEMANDS OF A COURT § 144.0 Purpose and scope. (a) The regulations in this part set forth procedures to be followed with respect to the disclosure, in response to a subpoena, order or other demand (collectively “demand”) of a court or other authority of any material contained...

  14. 34 CFR 668.144 - Application for test approval.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... have earned a high school diploma in the United States; (v) Documentation of the level of difficulty of... population of persons who have earned a high school diploma in the United States; (v) Documentation of the... Administered Tests; Specification of Passing Score; Approval of State Process § 668.144 Application for...

  15. 27 CFR 9.144 - Texas High Plains.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Texas High Plains. 9.144... Texas High Plains. (a) Name. The name of the viticultural area described in this section is “Texas High Plains.” (b) Approved maps. The appropriate maps for determining the boundary of the Texas High...

  16. 27 CFR 9.144 - Texas High Plains.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Texas High Plains. 9.144... Texas High Plains. (a) Name. The name of the viticultural area described in this section is “Texas High Plains.” (b) Approved maps. The appropriate maps for determining the boundary of the Texas High...

  17. 27 CFR 9.144 - Texas High Plains.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Texas High Plains. 9.144... Texas High Plains. (a) Name. The name of the viticultural area described in this section is “Texas High Plains.” (b) Approved maps. The appropriate maps for determining the boundary of the Texas High...

  18. 27 CFR 9.144 - Texas High Plains.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Texas High Plains. 9.144... Texas High Plains. (a) Name. The name of the viticultural area described in this section is “Texas High Plains.” (b) Approved maps. The appropriate maps for determining the boundary of the Texas High...

  19. 33 CFR 144.01-10 - Equipment for life floats.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... other material provided it has equal strength to the size of manila rope specified and is not less than....01-10, see the List of CFR Sections Affected, which appears in the Finding Aids section of the...-10 Section 144.01-10 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND...

  20. 33 CFR 144.01-15 - Alternates for life floats.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Alternates for life floats. 144... for life floats. (a) Approved lifeboats, approved life rafts or approved inflatable life rafts may be used in lieu of approved life floats for either all or part of the capacity required. When...

  1. 33 CFR 144.01-15 - Alternates for life floats.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Alternates for life floats. 144... for life floats. (a) Approved lifeboats, approved life rafts or approved inflatable life rafts may be used in lieu of approved life floats for either all or part of the capacity required. When...

  2. 40 CFR 144.13 - Prohibition of Class IV wells.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... wells. (c) Wells used to inject contaminated ground water that has been treated and is being reinjected... Section 144.13 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS... promulgated for the state. (4) Any increase in the amount of hazardous waste or change in the type...

  3. 40 CFR 144.13 - Prohibition of Class IV wells.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... wells. (c) Wells used to inject contaminated ground water that has been treated and is being reinjected... Section 144.13 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS... promulgated for the state. (4) Any increase in the amount of hazardous waste or change in the type...

  4. 27 CFR 25.144 - Rebranding barrels and kegs.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... BUREAU, DEPARTMENT OF THE TREASURY LIQUORS BEER Marks, Brands, and Labels § 25.144 Rebranding barrels and... permanently remove or durably cover the original marks and brands after notifying the appropriate TTB officer... the original marks and brands if the brewer: (1) Adopts a trade name substantially identical to...

  5. 27 CFR 25.144 - Rebranding barrels and kegs.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... BUREAU, DEPARTMENT OF THE TREASURY LIQUORS BEER Marks, Brands, and Labels § 25.144 Rebranding barrels and... permanently remove or durably cover the original marks and brands after notifying the appropriate TTB officer... the original marks and brands if the brewer: (1) Adopts a trade name substantially identical to...

  6. 45 CFR 144.102 - Scope and applicability.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... provided to associations, but is not related to employment, is not considered group coverage under 45 CFR...) For purposes of 45 CFR parts 144 through 148, all health insurance coverage is generally divided into two markets—the group market (set forth in 45 CFR part 146) and the individual market (set forth in...

  7. 27 CFR 9.144 - Texas High Plains.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Texas High Plains. 9.144... Texas High Plains. (a) Name. The name of the viticultural area described in this section is “Texas High Plains.” (b) Approved maps. The appropriate maps for determining the boundary of the Texas High...

  8. 40 CFR 144.5 - Confidentiality of information.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    .... (a) In accordance with 40 CFR part 2, any information submitted to EPA pursuant to these regulations... the procedures in 40 CFR part 2 (Public Information). (b) Claims of confidentiality for the following... Section 144.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER...

  9. 40 CFR 144.25 - Requiring a permit.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization of Underground Injection by Rule § 144.25 Requiring a permit. (a) The Director may require the owner or operator of any Class I, II, III or V injection...

  10. 40 CFR 144.16 - Waiver of requirement by Director.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... review, construction, mechanical integrity, operation, monitoring, and reporting than required in 40 CFR... risk of movement of fluids into an underground source of drinking water. (b) When injection occurs... 40 CFR part 146 or § 144.52 to the extent that the reduction in requirements will not result in...

  11. 40 CFR 144.25 - Requiring a permit.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization of Underground Injection by Rule § 144.25 Requiring a permit. (a) The Director may require the owner or operator of any Class I, II, III or V injection...

  12. 40 CFR 144.5 - Confidentiality of information.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... (a) In accordance with 40 CFR part 2, any information submitted to EPA pursuant to these regulations... the procedures in 40 CFR part 2 (Public Information). (b) Claims of confidentiality for the following... Section 144.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER...

  13. 33 CFR 144.30-5 - Exposure suits.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 144.30-5 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED... MODU is documented may be used in lieu of suits approved under 46 CFR 160.071, provided that they are... 7126, Washington, DC 20593-7126, along with technical data supporting the thermal performance of...

  14. 40 CFR 144.70 - Wording of the instruments.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Section 144.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS... EPA. The Grantor and the Trustee intend that no third party have access to the Fund except as herein... funds shall no longer constitute part of the Fund as defined herein. Section 5. Payments Comprising...

  15. 40 CFR 144.70 - Wording of the instruments.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Section 144.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS... EPA. The Grantor and the Trustee intend that no third party have access to the Fund except as herein... funds shall no longer constitute part of the Fund as defined herein. Section 5. Payments Comprising...

  16. 40 CFR 144.70 - Wording of the instruments.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Section 144.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS... EPA. The Grantor and the Trustee intend that no third party have access to the Fund except as herein... funds shall no longer constitute part of the Fund as defined herein. Section 5. Payments Comprising...

  17. 40 CFR 144.16 - Waiver of requirement by Director.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... review, construction, mechanical integrity, operation, monitoring, and reporting than required in 40 CFR... risk of movement of fluids into an underground source of drinking water. (b) When injection occurs... 40 CFR part 146 or § 144.52 to the extent that the reduction in requirements will not result in...

  18. 19 CFR 144.31 - Right to withdraw.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS Withdrawals from Warehouse § 144.31 Right to withdraw. Withdrawals from bonded warehouse may be made only by the person primarily liable for the payment of duties on the merchandise being withdrawn, i.e., the importer of record on the warehouse...

  19. 19 CFR 144.33 - Minimum quantities to be withdrawn.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... OF THE TREASURY (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS Withdrawals from Warehouse § 144.33 Minimum quantities to be withdrawn. Unless by special authority of the Commissioner of Customs, merchandise shall not be withdrawn from bonded warehouse in quantities less than an entire...

  20. 40 CFR 721.10292 - Silicate (2-), hexafluoro-, cesium (1:2).

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Silicate (2-), hexafluoro-, cesium (1... Specific Chemical Substances § 721.10292 Silicate (2-), hexafluoro-, cesium (1:2). (a) Chemical substance...-) hexafluoro-cesium (1:2) (PMN P-11-546; CAS No. 16923-87-8) is subject to reporting under this section for...

  1. 40 CFR 721.10292 - Silicate (2-), hexafluoro-, cesium (1:2).

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Silicate (2-), hexafluoro-, cesium (1... Specific Chemical Substances § 721.10292 Silicate (2-), hexafluoro-, cesium (1:2). (a) Chemical substance...-) hexafluoro-cesium (1:2) (PMN P-11-546; CAS No. 16923-87-8) is subject to reporting under this section for...

  2. 40 CFR 721.10292 - Silicate (2-), hexafluoro-, cesium (1:2).

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Silicate (2-), hexafluoro-, cesium (1... Specific Chemical Substances § 721.10292 Silicate (2-), hexafluoro-, cesium (1:2). (a) Chemical substance...-) hexafluoro-cesium (1:2) (PMN P-11-546; CAS No. 16923-87-8) is subject to reporting under this section for...

  3. Exotic stable cesium polynitrides at high pressure

    SciTech Connect

    Peng, Feng; Han, Yunxia; Liu, Hanyu; Yao, Yansun

    2015-11-19

    New polynitrides containing metastable forms of nitrogen are actively investigated as potential high energy-density materials. Using a structure search method based on the CALYPSO methodology, we investigated the stable stoichiometries and structures of cesium polynitrides at high pressures. Along with the CsN3, we identified five new stoichiometric compounds (Cs3N, Cs2N, CsN, CsN2, and CsN5) with interesting structures that may be experimentally synthesizable at modest pressures (i.e., less than 50 GPa). Nitrogen species in the predicted structures have various structural forms ranging from single atom (N) to highly endothermic molecules (N2, N3 , N4, N5, N6) and chains (N). Polymeric chains of nitrogen were found in the high-pressure C2/c phase of CsN2. This structure contains a substantially high content of single N-N bonds that exceeds the previously known nitrogen chains in pure forms, and also exhibit metastability at ambient conditions. We also identified a very interesting CsN crystal that contains novel N44- anion. In conclusion, to our best knowledge, this is the first time a charged N4 species being reported. Results of the present study suggest that it is possible to obtain energetic polynitrogens in main-group nitrides under high pressure.

  4. Cesium in the Savannah River Site environment

    SciTech Connect

    Carlton, W.H.; Bauer, L.R.; Evans, A.G.; Geary, L.A.; Murphy, C.E. Jr.; Pinder, J.E.; Strom, R.N.

    1992-03-01

    Cesium in the Savannah River Site Environment is published as a part of the Radiological Assessment Program (RAP). It is the fourth in a series of eight documents on individual radioisotopes released to the environment as a result of Savannah River Site (SRS) operations. The earlier documents describe the environmental consequences of tritium, iodine, and uranium. Documents on plutonium, strontium, carbon, and technetium will be published in the future. These are dynamic documents and current plans call for revising and updating each one on a two-year schedule.Radiocesium exists in the environment as a result of above-ground nuclear weapons tests, the Chernobyl accident, the destruction of satellite Cosmos 954, small releases from reactors and reprocessing plants, and the operation of industrial, medical, and educational facilities. Radiocesium has been produced at SRS during the operation of five production reactors. Several hundred curies of {sup 137}Cs was released into streams in the late 50s and 60s from leaking fuel elements. Smaller quantities were released from the fuel reprocessing operations. About 1400 Ci of {sup 137}Cs was released to seepage basins where it was tightly bound by clay in the soil. A much smaller quantity, about four Ci. was released to the atmosphere. Radiocesium concentration and mechanisms for atmospheric, surface water, and groundwater have been extensively studied by Savannah River Technology Center (SRTC) and ecological mechanisms have been studied by Savannah River Ecology Laboratory (SREL). The overall radiological impact of SRS releases on the offsite maximum individual can be characterized by total doses of 033 mrem (atmospheric) and 60 mrem (liquid), compared with a dose of 12,960 mrem from non-SRS sources during the same period of time. Isotope {sup 137}Cs releases have resulted in a negligible risk to the environment and the population it supports.

  5. Cesium in the Savannah River Site environment

    SciTech Connect

    Carlton, W.H.; Bauer, L.R.; Evans, A.G.; Geary, L.A.; Murphy, C.E. Jr.; Pinder, J.E.; Strom, R.N.

    1992-03-01

    Cesium in the Savannah River Site Environment is published as a part of the Radiological Assessment Program (RAP). It is the fourth in a series of eight documents on individual radioisotopes released to the environment as a result of Savannah River Site (SRS) operations. The earlier documents describe the environmental consequences of tritium, iodine, and uranium. Documents on plutonium, strontium, carbon, and technetium will be published in the future. These are dynamic documents and current plans call for revising and updating each one on a two-year schedule.Radiocesium exists in the environment as a result of above-ground nuclear weapons tests, the Chernobyl accident, the destruction of satellite Cosmos 954, small releases from reactors and reprocessing plants, and the operation of industrial, medical, and educational facilities. Radiocesium has been produced at SRS during the operation of five production reactors. Several hundred curies of [sup 137]Cs was released into streams in the late 50s and 60s from leaking fuel elements. Smaller quantities were released from the fuel reprocessing operations. About 1400 Ci of [sup 137]Cs was released to seepage basins where it was tightly bound by clay in the soil. A much smaller quantity, about four Ci. was released to the atmosphere. Radiocesium concentration and mechanisms for atmospheric, surface water, and groundwater have been extensively studied by Savannah River Technology Center (SRTC) and ecological mechanisms have been studied by Savannah River Ecology Laboratory (SREL). The overall radiological impact of SRS releases on the offsite maximum individual can be characterized by total doses of 033 mrem (atmospheric) and 60 mrem (liquid), compared with a dose of 12,960 mrem from non-SRS sources during the same period of time. Isotope [sup 137]Cs releases have resulted in a negligible risk to the environment and the population it supports.

  6. Dating of mine waste in lacustrine sediments using cesium-137

    NASA Astrophysics Data System (ADS)

    Rember, W. C.; Erdman, T. W.; Hoffmann, M. L.; Chamberlain, V. E.; Sprenke, K. F.

    1993-11-01

    For over a century Medicine Lake in northern Idaho has received heavy-metal-laden tailings from the Coeur d'Alene mining district. Establishing the depositional chronology of the lake bottom sediments provides information on the source and rate of deposition of the tailings. Cesium-137, an isotope produced in the atmosphere by nuclear bomb tests, was virtually absent in the environment prior to 1951, but reached its apex in 1964. Our analysis of cesium-137 in the sediments of Medicine Lake revealed that 14 cm of fine-grained tailings were deposited in the lake from 1951 to 1964 and tailing deposition downstream was greatly reduced by the installation of tailings dams in the district in 1968. Cesium-137 analysis is accomplished by a fairly simple gamma-ray counting technique and should be a valuable tool for analyzing sedimentation in any lacustrine environment that was active during the 1950s and 1960s.

  7. Method for removing cesium from a nuclear reactor coolant

    DOEpatents

    Colburn, R.P.

    1983-08-10

    A method of and system for removing cesium from a liquid metal reactor coolant including a carbon packing trap in the primary coolant system for absorbing a major portion of the radioactive cesium from the coolant flowing therethrough at a reduced temperature. A regeneration subloop system having a secondary carbon packing trap is selectively connected to the primary system for isolating the main trap therefrom and connecting it to the regeneration system. Increasing the temperature of the sodium flowing through the primary trap diffuses a portion of the cesium inventory thereof further into the carbon matrix while simultaneously redispersing a portion into the regeneration system for absorption at a reduced temperature by the secondary trap.

  8. Study of radiatively sustained cesium plasmas for solar energy conversion

    NASA Technical Reports Server (NTRS)

    Palmer, A. J.; Dunning, G. J.

    1980-01-01

    The results of a study aimed at developing a high temperature solar electric converter are reported. The converter concept is based on the use of an alkali plasma to serve as both an efficient high temperature collector of solar radiation as well as the working fluid for a high temperature working cycle. The working cycle is a simple magnetohydrodynamic (MHD) Rankine cycle employing a solid electrode Faraday MHD channel. Research milestones include the construction of a theoretical model for coupling sunlight in a cesium plasma and the experimental demonstration of cesium plasma heating with a solar simulator in excellent agreement with the theory. Analysis of a solar MHD working cycle in which excimer laser power rather than electric power is extracted is also presented. The analysis predicts a positive gain coefficient on the cesium-xenon excimer laser transition.

  9. The adsorption of cesium on lanthanum hexaboride surfaces

    NASA Technical Reports Server (NTRS)

    Davis, P. R.; Swanson, L. W.; Chambers, S. A.

    1980-01-01

    The adsorption/desorption characteristics of cesium on clean and oxygen-covered LaB6 (100) surfaces were studied using various surface analysis techniques. On the initially clean surface (phi = 2.77 eV), adsorption produces a minimum work function of 1.96 eV and a saturation work function of 2.07 eV. For the oxygen-saturated surface, the cesium adsorption curve shows no minimum, the lowest work function (1.35 eV) occurring at cesium saturation. The utility of LaB6 (100) as an emitter or collector in thermionic converter applications (particularly for space nuclear electric propulsion) is evaluated.

  10. Controllable evaporation of cesium from a dispenser oven

    NASA Astrophysics Data System (ADS)

    Fantz, U.; Friedl, R.; Fröschle, M.

    2012-12-01

    This instrument allows controlled evaporation of the alkali metal cesium over a wide range of evaporation rates. The oven has three unique features. The first is an alkali metal reservoir that uses a dispenser as a cesium source. The heating current of the dispenser controls the evaporation rate allowing generation of an adjustable and stable flow of pure cesium. The second is a blocking valve, which is fully metallic as is the body of the oven. This construction both reduces contamination of the dispenser and enables the oven to be operated up to 300 °C, with only small temperature variations (<5 °C). By minimizing the temperature variation, the built up of the alkali metal at a cold spot is significantly hindered. The last feature is an integral surface ionization detector for measuring and controlling the evaporation rate. The dispenser oven can be easily transferred to the other alkali-metals.

  11. Operational frequency stability of rubidium and cesium frequency standards

    NASA Technical Reports Server (NTRS)

    Lavery, J. E.

    1973-01-01

    The frequency stabilities under operational conditions of several commercially available rubidium and cesium frequency standards were determined from experimental data for frequency averaging times from 10 to the 7th power s and are presented in table and graph form. For frequency averaging times between 10 to the 5th power and 10 to the 7th power s, the rubidium standards tested have a stability of between 10 to the minus 12th power and 5 x 10 to the minus 12th power, while the cesium standards have a stability of between 2 x 10 to the minus 13th power and 5 x 10 to the minus 13th power.

  12. High affinity of water-soluble cryptophanes for cesium cations.

    PubMed

    Brotin, Thierry; Montserret, Roland; Bouchet, Aude; Cavagnat, Dominique; Linares, Mathieu; Buffeteau, Thierry

    2012-01-20

    Exceptionally high affinity for cesium cations was achieved in aqueous solution using two enantiopure cryptophanes. Complexation of cesium was evidenced by (133)Cs NMR spectroscopy and by electronic circular dichroism (ECD). Binding constants as high as 6 × 10(9) M(-1) have been measured by isothermal titration calorimetry (ITC). Very strong complexation of rubidium cations (K ~10(6) M(-1)) has also been measured. Chiral hosts allowed the detection of the two cations at low concentrations (μM) using ECD.

  13. CAFS: A Cesium Atomic Frequency Standard for GPS block IIR

    NASA Technical Reports Server (NTRS)

    Wisnia, Jeffry A.

    1993-01-01

    Kernco, Inc. was selected to design the Cesium Atomic Frequency Standards (CAFS) for the GPS Block IIR NAVSTAR satellites. These spacecraft are scheduled to be launched in the mid-1990's to replenish and upgrade the existing constellation of Global Positioning System satellites. The Block IIR CAFS output frequency is 13.4003378 MHz, the 686th submultiple of the cesium atomic resonance frequency. Using an integer submultiple simplifies the design of the atomic frequency standard's rf multiplier circuits, eliminating the secondary frequency synthesizer needed in previous designs. The GPS Block IIR CAFS design, particularly the improvements made on our earlier Block II design is described. Test results are included.

  14. Computation of dimensional changes in isotropic cesium-graphite reservoirs

    NASA Astrophysics Data System (ADS)

    Smith, Joe N.; Heffernan, Timothy

    1992-01-01

    Cs-graphite reservoirs have been utilized in many operating thermionic converters and TFEs, in both in-core and out-of-core tests. The vapor pressure of cesium over Cs-intercalated graphite is well documented for unirradiated reservoirs. The vapor pressure after irradiation is the subject of on-going study. Dimensional changes due to both intercalation and to neutron irradiation have been quantified only for highly oriented graphite. This paper describes extrapolation of the data for intercalated oriented graphite, to provide a qualitative description of the response of isotropic graphite to exposure to both cesium and neutrons.

  15. Selective chemical binding enhances cesium tolerance in plants through inhibition of cesium uptake.

    PubMed

    Adams, Eri; Chaban, Vitaly; Khandelia, Himanshu; Shin, Ryoung

    2015-03-05

    High concentrations of cesium (Cs(+)) inhibit plant growth but the detailed mechanisms of Cs(+) uptake, transport and response in plants are not well known. In order to identify small molecules with a capacity to enhance plant tolerance to Cs(+), chemical library screening was performed using Arabidopsis. Of 10,000 chemicals tested, five compounds were confirmed as Cs(+) tolerance enhancers. Further investigation and quantum mechanical modelling revealed that one of these compounds reduced Cs(+) concentrations in plants and that the imidazole moiety of this compound bound specifically to Cs(+). Analysis of the analogous compounds indicated that the structure of the identified compound is important for the effect to be conferred. Taken together, Cs(+) tolerance enhancer isolated here renders plants tolerant to Cs(+) by inhibiting Cs(+) entry into roots via specific binding to the ion thus, for instance, providing a basis for phytostabilisation of radiocesium-contaminated farmland.

  16. Physical property measurements of doped cesium iodide crystals

    NASA Technical Reports Server (NTRS)

    Synder, R. S.; Clotfelter, W. N.

    1974-01-01

    Mechanical and thermal property values are reported for crystalline cesium iodide doped with sodium and thallium. Young's modulus, bulk modulus, shear modulus, and Poisson's ratio were obtained from ultrasonic measurements. Young's modulus and the samples' elastic and plastic behavior were also measured under tension and compression. Thermal expansion and thermal conductivity were the temperature dependent measurements that were made.

  17. Performances of the better metallic electrodes in cesium thermionic converters

    NASA Technical Reports Server (NTRS)

    Morris, J. F.

    1972-01-01

    Outputs are presented for some cesium diodes having primarily emitters of highly oriented polycrystalline or single-crystal 110 tungsten or .0001 rhenium. Power densities at 10 A/sq cm or 0.5 V appear as functions of emitter temperatures and electrode spacings.

  18. REMOVAL OF CESIUM FROM AQUEOUS SOLUTIONS BY ADSORPTION

    DOEpatents

    Knoll, K.C.

    1963-07-16

    A process of removing microquantities of cesium from aqueous solutions also containing macroquantities of other ions by adsorption on clinoptilolite is described. The invention resides in the pretreatment of the clinoptilolite by heating at 400 deg C and cooling prior to use. (AEC)

  19. Discovery of cesium, lanthanum, praseodymium and promethium isotopes

    SciTech Connect

    May, E.; Thoennessen, M.

    2012-09-15

    Currently, forty-one cesium, thirty-five lanthanum, thirty-two praseodymium, and thirty-one promethium isotopes have been observed and the discovery of these isotopes is described here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.

  20. Membrane-based separation technologies for cesium, strontium, and technetium

    SciTech Connect

    Kafka, T.

    1996-10-01

    This work is one of two parallel projects that are part of an ESP task to develop high-capacity, selective, solid extractants for cesium, strontium, and technetium from nuclear wastes. In this subtask, Pacific Northwest National Laboratory (PNNL) is collaborating with 3M, St. Paul, Minnesota, working in cooperation with IBC Advanced Technologies, American Fork, Utah.

  1. Suspension of superfluid helium using cesium-coated surfaces

    SciTech Connect

    Williams, M.C.; Giese, C.F.; Halley, J.W.

    1996-03-01

    We report results of an experiment which demonstrates that a layer of superfluid helium can be suspended over a cesium-coated orifice. By measuring the layer thickness with a capacitance bridge, we have shown in two runs that fluid layers up to 2 mm thick were suspended over a 70-{mu}m-diam cesium-coated orifice in a platinum foil for over 2 h in a cryostat held at 1.2 K. The effect depends on the recently established fact that superfluid helium does not wet cesium-coated surfaces. As a consequence, superfluid helium is expected to form a stable meniscus across such a cesium-coated hole. The observed depths of suspended helium are consistent with a simple theoretical model based on this picture. We briefly discuss the possible application of this method to the performance of a proposed experiment to study quantum coherence in superfluid helium by directing pulsed beams of helium atoms at such a suspended layer of fluid. {copyright} {ital 1996 The American Physical Society.}

  2. Hot demonstration of proposed commercial cesium removal technology

    SciTech Connect

    Lee, D.D.; Travis, J.R.; Gibson, M.R.

    1997-12-01

    This report describes the work done in support of the development of technology for the continuous removal and concentration of radioactive cesium in supernatant from Melton Valley Storage Tanks (MVSTs) at the ORNL site. The primary objective was to test candidate absorbers and ion exchangers under continuous-flow conditions using actual supernatant from the MVSTs. An experimental system contained in a hot-cell facility was constructed to test the materials in columns or modules using the same batch of supernatant to allow comparison on an equal basis. Resorcinol/formaldehyde (RF) resin was evaluated at three flow rates with 50% breakthrough ranges of 35 to 50 column volumes (CV) and also through a series of five loading/elution/regeneration cycles. The results reported here include the cesium loading breakthrough curves, elution curves (when applicable), and operational problems and observations for each material. The comparative evaluations should provide critical data for the selection of the sorbent for the ORNL Cesium Removal Demonstration project. These results will be used to help determine the design parameters for demonstration-scale systems. Such parameters include rates of cesium removal, quantity of resin or sorbent to be used, and elution and regeneration requirements, if applicable.

  3. Distribution of radioactive cesium in edible parts of cattle.

    PubMed

    Okada, Keiji; Sato, Itaru; Deguchi, Yoshitaka; Morita, Shigeru; Yasue, Takeshi; Yayota, Masato; Takeda, Ken-Ichi; Sato, Shusuke

    2013-12-01

    After the disastrous incident of the Fukushima Daiichi Nuclear Power Station, various agricultural, livestock and fishery products have been inspected for radioactive contamination with cesium in Japan. In this study, radioactive cesium was measured in various edible parts of cattle to verify the current inspection method for cattle, in which the neck tissues are generally used as samples. Radioactive cesium concentration in the short plate, diaphragm, liver, lung, omasum, abomasum and small intestine were lower and sirloin, tenderloin, top round meat and tongue were higher than that in the neck. There was no significant difference between the other organs (heart, kidney, lumen and reticulum) and the neck. Ninety-five percent upper tolerance limits of the relative concentration to the neck were 1.88 for sirloin, 1.74 for tenderloin, 1.87 for top round and 1.45 for tongue. These results suggest that a safety factor of 2 is recommended for the radioactivity inspection of cattle to prevent a marketing of meat with higher cesium than the legal limit. Re-inspection should be conducted using another part of muscle, for example, top round, when suspicious levels of 50-100 Bq/kg are detected in the neck.

  4. Sediment source determination using fallout Cesium-137 in arid rangelands.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Sediment source identification in arid rangelands is necessary to understanding rangeland conditions and developing management practices to improve rangeland health and reduce sediment load to streams. The purpose of this research was to use Cesium-137 to identify sources of sediments in an arid ran...

  5. Quantitative determination of cesium binding to ferric hexacyanoferrate: Prussian blue.

    PubMed

    Faustino, Patrick J; Yang, Yongsheng; Progar, Joseph J; Brownell, Charles R; Sadrieh, Nakissa; May, Joan C; Leutzinger, Eldon; Place, David A; Duffy, Eric P; Houn, Florence; Loewke, Sally A; Mecozzi, Vincent J; Ellison, Christopher D; Khan, Mansoor A; Hussain, Ajaz S; Lyon, Robbe C

    2008-05-12

    Ferric hexacyanoferrate (Fe4III[FeII(CN)6]3), also known as insoluble Prussian blue (PB) is the active pharmaceutical ingredient (API) of the drug product, Radiogardase. Radiogardase is the first FDA approved medical countermeasure for the treatment of internal contamination with radioactive cesium (Cs) or thallium in the event of a major radiological incident such as a "dirty bomb". A number of pre-clinical and clinical studies have evaluated the use of PB as an investigational decorporation agent to enhance the excretion of metal cations. There are few sources of published in vitro data that detail the binding capacity of cesium to insoluble PB under various chemical and physical conditions. The study objective was to determine the in vitro binding capacity of PB APIs and drug products by evaluating certain chemical and physical factors such as medium pH, particle size, and storage conditions (temperature). In vitro experimental conditions ranged from pH 1 to 9, to cover the range of pH levels that PB may encounter in the gastrointestinal (GI) tract in humans. Measurements of cesium binding were made between 1 and 24h, to cover gastric and intestinal tract residence time using a validated atomic emission spectroscopy (AES) method. The results indicated that pH, exposure time, storage temperature (affecting moisture content) and particle size play significant roles in the cesium binding to both the PB API and the drug product. The lowest cesium binding was observed at gastric pH of 1 and 2, whereas the highest cesium binding was observed at physiological pH of 7.5. It was observed that dry storage conditions resulted in a loss of moisture from PB, which had a significant negative effect on the PB cesium binding capacity at time intervals consistent with gastric residence. Differences were also observed in the binding capacity of PB with different particle sizes. Significant batch to batch differences were also observed in the binding capacity of some PB API and

  6. Quantitative determination of cesium binding to ferric hexacyanoferrate: Prussian blue.

    PubMed

    Faustino, Patrick J; Yang, Yongsheng; Progar, Joseph J; Brownell, Charles R; Sadrieh, Nakissa; May, Joan C; Leutzinger, Eldon; Place, David A; Duffy, Eric P; Houn, Florence; Loewke, Sally A; Mecozzi, Vincent J; Ellison, Christopher D; Khan, Mansoor A; Hussain, Ajaz S; Lyon, Robbe C

    2008-05-12

    Ferric hexacyanoferrate (Fe4III[FeII(CN)6]3), also known as insoluble Prussian blue (PB) is the active pharmaceutical ingredient (API) of the drug product, Radiogardase. Radiogardase is the first FDA approved medical countermeasure for the treatment of internal contamination with radioactive cesium (Cs) or thallium in the event of a major radiological incident such as a "dirty bomb". A number of pre-clinical and clinical studies have evaluated the use of PB as an investigational decorporation agent to enhance the excretion of metal cations. There are few sources of published in vitro data that detail the binding capacity of cesium to insoluble PB under various chemical and physical conditions. The study objective was to determine the in vitro binding capacity of PB APIs and drug products by evaluating certain chemical and physical factors such as medium pH, particle size, and storage conditions (temperature). In vitro experimental conditions ranged from pH 1 to 9, to cover the range of pH levels that PB may encounter in the gastrointestinal (GI) tract in humans. Measurements of cesium binding were made between 1 and 24h, to cover gastric and intestinal tract residence time using a validated atomic emission spectroscopy (AES) method. The results indicated that pH, exposure time, storage temperature (affecting moisture content) and particle size play significant roles in the cesium binding to both the PB API and the drug product. The lowest cesium binding was observed at gastric pH of 1 and 2, whereas the highest cesium binding was observed at physiological pH of 7.5. It was observed that dry storage conditions resulted in a loss of moisture from PB, which had a significant negative effect on the PB cesium binding capacity at time intervals consistent with gastric residence. Differences were also observed in the binding capacity of PB with different particle sizes. Significant batch to batch differences were also observed in the binding capacity of some PB API and

  7. 14 CFR 91.144 - Temporary restriction on flight operations during abnormally high barometric pressure conditions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... during abnormally high barometric pressure conditions. 91.144 Section 91.144 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL... flight operations during abnormally high barometric pressure conditions. (a) Special flight...

  8. Cesium determination for the DWPF off-gas system performance test

    SciTech Connect

    Andrews, M.K.; Elder, H.H.; Boyce, W.T.

    1996-04-11

    In an effort to determine the cesium decontamination factors (DF`s) of the Defense Waste Processing Facility (DWPF) melter off-gas system at the Savannah River Site, the system was verified during an off-gas performance test. The off-gas performance test occurred during the DWPF waste Qualification Campaigns, WP-16 and WP-17. The verification of the off-gas system, which eliminated the need for a startup test involving a radioactive cesium addition, was based on the analysis of nonradioactive cesium across the first and second stage High Efficiency Particulate Air (HEPA) filters. The amount of cesium on the first and second stage HEPA filters was determined by leaching samples from each HEPA filter with nitric acid and analyzing the leachate using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). The ICP-MS method has been demonstrated to be sufficiently sensitive to measure small quantities of cesium on filters. Based on the cesium results of the HEPA filter, cesium DF`s were calculated. The DF`s indicated that the DWPF HEPA filters performed better than the design basis. In addition to the HEPA filters, a determination of the cesium concentration in the melter feed, the canister glass and the off-gas condensate was made. These analyses provided information on cesium flow through the DWPF. This paper will focus on the methods used in the determination of nonradioactive cesium and the calculation of the DF`s for the DWPF melter off-gas system.

  9. 40 CFR 144.22 - Existing Class II enhanced recovery and hydrocarbon storage wells.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... and hydrocarbon storage wells. 144.22 Section 144.22 Protection of Environment ENVIRONMENTAL... of Underground Injection by Rule § 144.22 Existing Class II enhanced recovery and hydrocarbon storage wells. (a) An existing Class II enhanced recovery or hydrocarbon storage injection well is authorized...

  10. 40 CFR 144.22 - Existing Class II enhanced recovery and hydrocarbon storage wells.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... and hydrocarbon storage wells. 144.22 Section 144.22 Protection of Environment ENVIRONMENTAL... of Underground Injection by Rule § 144.22 Existing Class II enhanced recovery and hydrocarbon storage wells. (a) An existing Class II enhanced recovery or hydrocarbon storage injection well is authorized...

  11. 40 CFR 144.22 - Existing Class II enhanced recovery and hydrocarbon storage wells.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... and hydrocarbon storage wells. 144.22 Section 144.22 Protection of Environment ENVIRONMENTAL... of Underground Injection by Rule § 144.22 Existing Class II enhanced recovery and hydrocarbon storage wells. (a) An existing Class II enhanced recovery or hydrocarbon storage injection well is authorized...

  12. 40 CFR 144.22 - Existing Class II enhanced recovery and hydrocarbon storage wells.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... and hydrocarbon storage wells. 144.22 Section 144.22 Protection of Environment ENVIRONMENTAL... of Underground Injection by Rule § 144.22 Existing Class II enhanced recovery and hydrocarbon storage wells. (a) An existing Class II enhanced recovery or hydrocarbon storage injection well is authorized...

  13. 40 CFR 144.22 - Existing Class II enhanced recovery and hydrocarbon storage wells.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... and hydrocarbon storage wells. 144.22 Section 144.22 Protection of Environment ENVIRONMENTAL... of Underground Injection by Rule § 144.22 Existing Class II enhanced recovery and hydrocarbon storage wells. (a) An existing Class II enhanced recovery or hydrocarbon storage injection well is authorized...

  14. 40 CFR 144.63 - Financial assurance for plugging and abandonment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... abandonment. 144.63 Section 144.63 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.63 Financial assurance for plugging and abandonment. An owner or operator of each facility must establish financial assurance for the plugging and abandonment of each existing...

  15. 40 CFR 144.63 - Financial assurance for plugging and abandonment.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... abandonment. 144.63 Section 144.63 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.63 Financial assurance for plugging and abandonment. An owner or operator of each facility must establish financial assurance for the plugging and abandonment of each existing...

  16. 40 CFR 144.63 - Financial assurance for plugging and abandonment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... abandonment. 144.63 Section 144.63 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.63 Financial assurance for plugging and abandonment. An owner or operator of each facility must establish financial assurance for the plugging and abandonment of each existing...

  17. 40 CFR 144.63 - Financial assurance for plugging and abandonment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... abandonment. 144.63 Section 144.63 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Waste Injection Wells § 144.63 Financial assurance for plugging and abandonment. An owner or operator of each facility must establish financial assurance for the plugging and abandonment of each existing...

  18. 38 CFR 21.144 - Vocational course in a sheltered workshop or rehabilitation facility.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... sheltered workshop or rehabilitation facility. 21.144 Section 21.144 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Vocational Rehabilitation and Employment Under 38 U.S.C. Chapter 31 Special Rehabilitation Services § 21.144 Vocational...

  19. 38 CFR 21.144 - Vocational course in a sheltered workshop or rehabilitation facility.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... sheltered workshop or rehabilitation facility. 21.144 Section 21.144 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS (CONTINUED) VOCATIONAL REHABILITATION AND EDUCATION Vocational Rehabilitation and Employment Under 38 U.S.C. Chapter 31 Special Rehabilitation Services § 21.144 Vocational...

  20. 40 CFR 144.86 - What are the definitions I need to know?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... boundaries of areas providing source waters for public water systems; identifying significant potential... know? 144.86 Section 144.86 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Disposal Wells § 144.86 What are the definitions I need to know? (a) State Drinking Water Source...

  1. 40 CFR 144.86 - What are the definitions I need to know?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... boundaries of areas providing source waters for public water systems; identifying significant potential... know? 144.86 Section 144.86 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER... Injection Wells § 144.86 What are the definitions I need to know? (a) State Drinking Water Source...

  2. 28 CFR 14.4 - Administrative claims; evidence and information to be submitted.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Administrative claims; evidence and information to be submitted. 14.4 Section 14.4 Judicial Administration DEPARTMENT OF JUSTICE ADMINISTRATIVE CLAIMS UNDER FEDERAL TORT CLAIMS ACT § 14.4 Administrative claims; evidence and information to be submitted. (a) Death. In support of a claim...

  3. 40 CFR 144.65 - Use of State-required mechanisms.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 23 2011-07-01 2011-07-01 false Use of State-required mechanisms. 144.65 Section 144.65 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Financial Responsibility: Class I Hazardous Waste Injection Wells § 144.65 Use of...

  4. 40 CFR 144.32 - Signatories to permit applications and reports.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... reports. 144.32 Section 144.32 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS (CONTINUED) UNDERGROUND INJECTION CONTROL PROGRAM Authorization by Permit § 144.32 Signatories to... imprisonment for knowing violations. (Clean Water Act (33 U.S.C. 1251 et seq.), Safe Drinking Water Act (42...

  5. 40 CFR 144.7 - Identification of underground sources of drinking water and exempted aquifers.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... of drinking water and exempted aquifers. 144.7 Section 144.7 Protection of Environment ENVIRONMENTAL... Provisions § 144.7 Identification of underground sources of drinking water and exempted aquifers. (a) The..., except where exempted under paragraph (b) of this section, as an underground source of drinking...

  6. 40 CFR 144.7 - Identification of underground sources of drinking water and exempted aquifers.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of drinking water and exempted aquifers. 144.7 Section 144.7 Protection of Environment ENVIRONMENTAL... Provisions § 144.7 Identification of underground sources of drinking water and exempted aquifers. (a) The... underground sources of drinking water, all aquifers and parts of aquifers which meet the definition...

  7. 19 CFR 144.42 - Combined entry for rewarehouse and withdrawal for consumption.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... Revenue Service (26 CFR part 275) and tax is payable to Customs; and (3) Deposit of duties. Estimated... consumption. 144.42 Section 144.42 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND... Rewarehouse Entries § 144.42 Combined entry for rewarehouse and withdrawal for consumption. (a)...

  8. 19 CFR 144.15 - Entry and withdrawal from Customs bonded warehouses of distilled spirits.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... warehouses of distilled spirits. 144.15 Section 144.15 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY (CONTINUED) WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS Requirements and Procedures for Warehouse Entry § 144.15 Entry and withdrawal from Customs...

  9. Tu-144LL SST Flying Laboratory Side View of Nose, with a TU-144D on Ramp

    NASA Technical Reports Server (NTRS)

    1998-01-01

    A Tupolev Tu-144D supersonic jetliner is framed by the drooped nose and forward fuselage of the Tu-144LL supersonic flying laboratory at the Zhukovsky Air Development Center near Moscow, Russia, in 1998. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used

  10. Desorption of intrinsic cesium from smectite: inhibitive effects of clay particle organization on cesium desorption.

    PubMed

    Fukushi, Keisuke; Sakai, Haruka; Itono, Taeko; Tamura, Akihiro; Arai, Shoji

    2014-09-16

    Fine clay particles have functioned as transport media for radiocesium in terrestrial environments after nuclear accidents. Because radiocesium is expected to be retained in clay minerals by a cation-exchange reaction, ascertaining trace cesium desorption behavior in response to changing solution conditions is crucially important. This study systematically investigated the desorption behavior of intrinsic Cs (13 nmol/g) in well-characterized Na-montmorillonite in electrolyte solutions (NaCl, KCl, CaCl2, and MgCl2) under widely differing cation concentrations (0.2 mM to 0.2 M). Batch desorption experiments demonstrated that Cs(+) desorption was inhibited significantly in the presence of the environmental relevant concentrations of Ca(2+) and Mg(2+) (>0.5 mM) and high concentrations of K(+). The order of ability for Cs desorption was Na(+) = K(+) > Ca(2+) = Mg(2+) at the highest cation concentration (0.2 M), which is opposite to the theoretical prediction based on the cation-exchange selectivity. Laser diffraction grain-size analyses revealed that the inhibition of Cs(+) desorption coincided with the increase of the clay tactoid size. Results suggest that radiocesium in the dispersed fine clay particles adheres on the solid phase when the organization of swelling clay particles occurs because of changes in solution conditions caused by both natural processes and artificial treatments.

  11. Tu-144LL SST Flying Laboratory in Flight

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The delta wing of the Tupolev Tu-144LL supersonic flying laboratory is evident in this view from underneath the aircraft during a 1998 test flight at the Zhukovsky Air Development Center near Moscow, Russia. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were

  12. Tu-144LL SST Flying Laboratory in Flight

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The Tupolev Tu-144LL supersonic flying laboratory shows off its sleek lines in a low-level pass over the Zhukovsky Air Development Center near Moscow, Russia, on a 1998 research flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production

  13. Method and article for primary containment of cesium wastes. [DOE patent application

    DOEpatents

    Angelini, P.; Lackey, W.J.; Stinton, D.P.; Blanco, R.E.; Bond, W.D.; Arnold, W.D. Jr.

    1981-09-03

    A method for producing a cesium-retentive waste form, characterized by a high degree of compositional stability and mechanical integrity, is provided by subjecting a cesium-loaded zeolite to heat under conditions suitable for stabilizing the zeolite and immobilizing the cesium, and coating said zeolite for sufficient duration within a suitable environment with at least one dense layer of pyrolytic carbon to seal therein said cesium to produce a final, cesium-bearing waste form. Typically, the zolite is stabilized and the cesium immobilized in less than four hours by confinement within an air environment maintained at about 600/sup 0/C. Coatings are thereafter applied by confining the calcined zeolite within a coating environment comprising inert fluidizing and carbon donor gases maintained at 1000/sup 0/C for a suitable duration.

  14. Characterization of high cesium containing glass-bonded ceramic waste forms.

    SciTech Connect

    Lambregts, M. J.; Frank, S. M.

    2003-10-03

    High cesium containing glass-bonded ceramic waste form samples were prepared and characterized to identify possible cesium phases present in glass-bonded ceramic waste forms developed for the containment of fission product bearing salts. Major phases of the waste forms are sodalite and glass. A combination of powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and nuclear magnetic resonance spectroscopy (NMR) were used to study the multiphase nature of these waste forms. Cesium was found to be present in the higher loaded waste forms in a cesium aluminosilicate phase with an analcime structure and a 1:1 Si:Al ratio, a pollucite phase, and also in the glass phase. The glass phase contains the majority of the cesium at lower loadings, however some pollucite also remains. Cesium was not detected in the sodalite phase of any of the samples.

  15. Multiple delivery cesium oven system for negative ion sources

    SciTech Connect

    Bansal, G.; Bhartiya, S.; Pandya, K.; Bandyopadhyay, M.; Singh, M. J.; Soni, J.; Gahlaut, A.; Parmar, K. G.; Chakraborty, A.

    2012-02-15

    Distribution of cesium in large negative ion beam sources to be operational in ITER, is presently based on the use of three or more cesium ovens, which operate simultaneously and are controlled remotely. However, use of multiple Cs ovens simultaneously is likely to pose difficulties in operation and maintenance of the ovens. An alternate method of Cs delivery, based on a single oven distribution system is proposed as one which could reduce the need of simultaneous operation of many ovens. A proof of principle experiment verifying the concept of a multinozzle distributor based Cs oven has been carried out at Institute for Plasma Research. It is also observed that the Cs flux is not controlled by Cs reservoir temperature after few hours of operation but by the temperature of the distributor which starts behaving as a Cs reservoir.

  16. Leachate tests with sewage sludge contaminated by radioactive cesium.

    PubMed

    Tsushima, Ikuo; Ogoshi, Masashi; Harada, Ichiro

    2013-01-01

    The sewer systems of eastern Japan have transported radioactive fallout from the Fukushima Dai-ichi nuclear power plant accident to wastewater treatment plants, where the radioisotopes have accumulated. To better understand the potential problems associated with the disposal of contaminated sewage sludge in landfills, leachate tests were conducted with radioactive incinerator ash, cement solidification incinerator ash, and dewatered sludge cake. Radioactivity was undetectable in the eluate from incinerator ash and dewatered sludge cake, but about 30% of the radioactivity initially in cement solidification incinerator ash appeared in the eluate during the leaching experiments. Moreover, modification of test conditions revealed that the presence of Ca(2+) ions and strong alkali in the water that contacted the incinerator ash enhanced leaching of cesium. Lastly, the capacity of pit soil to absorb radioactive cesium was estimated to be at least 3.0 Bq/g (dry).

  17. Atomic trajectories in compact cesium-beam clocks.

    PubMed

    Jaduszliwer, B

    1990-01-01

    The author presents accurate calculations of atomic trajectories in conventional CBTs (cesium-beam tubes) using dispersive two-wire field magnets, and also in a novel configuration using two orthogonal one-dimensional focusing dipoles of the type described P. Kartaschoff (1974). In the first configuration, the author explains the observed differences in atomic velocity distribution in terms of small variations in the oven and/or detector offsets. The second configuration yields beam intensities that are significantly higher than the ones obtained with dispersive magnets and/or substantially lower atomic velocities, and thus could improve the frequency stability of compact cesium clocks in the white-noise regime. The present design differs from Kartaschoff's prescription in that a 1-D focusing dipole, rather than a hexapole or quadrupole magnet, is used as the A magnet in the CBT, making the tube manufacturing simpler.

  18. Hydrological methods preferentially recover cesium from nuclear waste salt cake

    SciTech Connect

    Brooke, J.N.; Hamm, L.L.

    1997-05-01

    The Savannah River Site is treating high level radioactive waste in the form of insoluble solids (sludge), crystallized salt (salt cake), and salt solutions. High costs and operational concerns have prompted DOE to look for ways to improve the salt cake treatment process. A numerical model was developed to evaluate the feasibility of pump and treat technology for extracting cesium from salt cake. A modified version of the VAM3DCG code was used to first establish a steady-state flow field, then to simulate 30 days of operation. Simulation results suggest that efficient cesium extraction can be obtained with low displacement volumes. The actual extraction process will probably be less impressive because of nonuniform properties. 2 refs., 2 figs.

  19. Detection of the actinides and cesium from environmental samples

    NASA Astrophysics Data System (ADS)

    Snow, Mathew Spencer

    Detection of the actinides and cesium in the environment is important for a variety of applications ranging from environmental remediation to safeguards and nuclear forensics. The utilization of multiple different elemental concentrations and isotopic ratios together can significantly improve the ability to attribute contamination to a unique source term and/or generation process; however, the utilization of multiple elemental "signatures" together from environmental samples requires knowledge of the impact of chemical fractionation for various elements under a variety of environmental conditions (including predominantly aqueous versus arid conditions). The research reported in this dissertation focuses on three major areas: 1. Improving the understanding of actinide-mineral interactions at ultra-low concentrations. Chapter 2 reports a batch sorption and modeling study of Np(V) sorption to the mineral goethite from attomolar to micromolar concentrations. 2. Improving the detection capabilities for Thermal Ionization Mass Spectrometry (TIMS) analyses of ultra-trace cesium from environmental samples. Chapter 4 reports a new method which significantly improves the chemical yields, purification, sample processing time, and ultimately, the detection limits for TIMS analyses of femtogram quantities of cesium from a variety of environmental sample matrices. 3. Demonstrating how actinide and cesium concentrations and isotopic ratios from environmental samples can be utilized together to determine a wealth of information including environmental transport mechanisms (e.g. aqueous versus arid transport) and information on the processes which generated the original material. Chapters1, 3 and 5 demonstrate these principles using Pu, Am, Np, and Cs concentrations and isotopic ratios from contaminated soils taken near the Subsurface Disposal Area (SDA) of Idaho National Laboratory (INL) (a low level radioactive waste disposal site in southeastern Idaho).

  20. Extraction of cesium and strontium from nuclear waste

    DOEpatents

    Davis, Jr., Milton W.; Bowers, Jr., Charles B.

    1988-01-01

    Cesium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4'(5) [1-hydroxy-2-ethylhexyl]benzo 18-crown-6 compound and a cation exchanger in a matrix solution. Strontium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4'(5') [1-hydroxyheptyl]cyclohexo 18-crown-6 compound, and a cation exchanger in a matrix solution.

  1. X-ray spectrographic determination of cesium and rubidium

    USGS Publications Warehouse

    Axelrod, J.M.; Adler, I.

    1957-01-01

    An x-ray spectrographic method for the determination of rubidium and cesium was developed, using the internal-standard method and a four-channel flat-crystal spectrograph. The sensitivity is within 0.1% for cesia and 0.02% for rubidia; the precision is within 10% of the amount present. Results agree well with those obtained by flame photometry and by radio-activation.

  2. Excited State Electronic Properties of Sodium Iodide and Cesium Iodide

    SciTech Connect

    Campbell, Luke W.; Gao, Fei

    2013-05-01

    We compute from first principles the dielectric function, loss function, lifetime and scattering rate of quasiparticles due to electronic losses, and secondary particle spectrum due to plasmon decay in two scintillating alkali halides, sodium iodide and cesium iodide. Particular emphasis is placed on quasiparticles within several multiples of the band gap from the band edges. A theory for the decay spectra of plasmons and other electronic excitations in crystals is presented. Applications to Monte Carlo radiation transport codes are discussed.

  3. Effect of illite particle shape on cesium sorption

    USGS Publications Warehouse

    Rajec, P.; Sucha, V.; Eberl, D.D.; Srodon, J.; Elsass, F.

    1999-01-01

    Samples containing illite and illite-smectite, having different crystal shapes (plates, "barrels", and filaments), were selected for sorption experiments with cesium. There is a positive correlation between total surface area and Cs-sorption capacity, but no correlation between total surface area and the distribution coefficient, Kd. Generally Kd increases with the edge surface area, although "hairy" (filamentous) illite does not fit this pattern, possibly because elongation of crystals along one axis reduces the number of specific sorption sites.

  4. Extraction of cesium and strontium from nuclear waste

    DOEpatents

    Davis, M.W. Jr.; Bowers, C.B. Jr.

    1988-06-07

    Cesium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5) [1-hydroxy-2-ethylhexyl]benzo 18-crown-6 compound and a cation exchanger in a matrix solution. Strontium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5[prime]) [1-hydroxyheptyl]cyclohexo 18-crown-6 compound, and a cation exchanger in a matrix solution. 3 figs.

  5. Determination of weak transition intensities in {sup 144}Nd

    SciTech Connect

    Robinson, S.J.; Altgilbers, A.; Hindi, M.M.

    1995-10-01

    We have conducted an experiment to determine the intensities of weak transitions in {sup 144}Nd following the EC-decay of {sup 144}Pm were counted in a 20% HPGe detector with a resolution of 4-keV at 1332-keV. To minimize the effects of coincidence summing and pile-up in the region around 1400-keV an absorber of 3.8 cm of lead was placed between the source and the detector. The absolute intensity (per 100 decays of the parent) of the 1397-keV, 5{sub 1}{sup -} {r_arrow}2{sub 1}{sup +} transition, which is important in the interpretation of the 2093-keV 5{sup -} level as a quadrupole-octupole coupled state, has been measured to be (4.6{plus_minus}0.7) x 10{sup -4}%. Also, the intensity of the 1413-keV transition from the 2110-keV (4{sup +}) level has been measured as (4.3{plus_minus}0.1) x 10{sup -3%} and a limit of <3 x 10{sup -4%} has been placed on the 1508-keV transition from the 2205-keV level. The significance of these results, and ongoing lifetime measurements, will be discussed in terms of quadrupole-octupole coupling.

  6. Test procedures and instructions for Hanford tank waste supernatant cesium removal

    SciTech Connect

    Hendrickson, D.W., Westinghouse Hanford

    1996-05-31

    This document provides specific test procedures and instructions to implement the test plan for the preparation and conduct of a cesium removal test using Hanford Double-Shell Slurry Feed supernatant liquor from tank 251-AW-101 in a bench-scale column.Cesium sorbents to be tested include resorcinol-formaldehyde resin and crystalline silicotitanate. The test plan for which this provides instructions is WHC-SD-RE-TP-022, Hanford Tank Waste Supernatant Cesium Removal Test Plan.

  7. Test procedures and instructions for Hanford complexant concentrate supernatant cesium removal using CST

    SciTech Connect

    Hendrickson, D.W.

    1997-01-08

    This document provides specific test procedures and instructions to implement the test plan for the preparation and conduct of a cesium removal test, using Hanford Complexant Concentrate supernatant liquor from tank 241-AN-107, in a bench-scale column. The cesium sorbent to be tested is crystalline silicotitanate. The test plan for which this provides instructions is WHC-SD-RE-TP-023, Hanford Complexant Concentrate Supernatant Cesium Removal Test Plan.

  8. MODELING RESULTS FROM CESIUM ION EXCHANGE PROCESSING WITH SPHERICAL RESINS

    SciTech Connect

    Nash, C.; Hang, T.; Aleman, S.

    2011-01-03

    Ion exchange modeling was conducted at the Savannah River National Laboratory to compare the performance of two organic resins in support of Small Column Ion Exchange (SCIX). In-tank ion exchange (IX) columns are being considered for cesium removal at Hanford and the Savannah River Site (SRS). The spherical forms of resorcinol formaldehyde ion exchange resin (sRF) as well as a hypothetical spherical SuperLig{reg_sign} 644 (SL644) are evaluated for decontamination of dissolved saltcake wastes (supernates). Both SuperLig{reg_sign} and resorcinol formaldehyde resin beds can exhibit hydraulic problems in their granular (nonspherical) forms. SRS waste is generally lower in potassium and organic components than Hanford waste. Using VERSE-LC Version 7.8 along with the cesium Freundlich/Langmuir isotherms to simulate the waste decontamination in ion exchange columns, spherical SL644 was found to reduce column cycling by 50% for high-potassium supernates, but sRF performed equally well for the lowest-potassium feeds. Reduced cycling results in reduction of nitric acid (resin elution) and sodium addition (resin regeneration), therefore, significantly reducing life-cycle operational costs. These findings motivate the development of a spherical form of SL644. This work demonstrates the versatility of the ion exchange modeling to study the effects of resin characteristics on processing cycles, rates, and cold chemical consumption. The value of a resin with increased selectivity for cesium over potassium can be assessed for further development.

  9. Cesium Isotope Ratios as Indicators of Nuclear Power Plant Operations

    SciTech Connect

    Darin Snyder; James Delmore; Troy Tranter; Nick Mann; Michael Abbott; John Olson

    2011-11-01

    There are multiple paths by which radioactive cesium can reach the effluent from reactor operations. The radioactive 135Cs/137Cs ratios are controlled by these paths. In an effort to better understand the origin of this radiation, these 135Cs/137Cs ratios in effluents from three power reactor sites have been measured in offsite samples. These ratios are different from global fallout by up to six fold and as such cannot have a significant component from this source. A cesium ratio for a sample collected outside of the plant boundary provides integration over the operating life of the reactor. A sample collected inside the plant at any given time can be much different from this lifetime ratio. The measured cesium ratios vary significantly for the three reactors and indicate that the multiple paths have widely varying levels of contributions. There are too many ways these isotopes can fractionate to be useful for quantitative evaluations of operating parameters in an offsite sample, although it may be possible to obtain limited qualitative information for an onsite sample.

  10. Cesium isotope ratios as indicators of nuclear power plant operations.

    PubMed

    Delmore, James E; Snyder, Darin C; Tranter, Troy; Mann, Nick R

    2011-11-01

    There are multiple paths by which radioactive cesium can reach the effluent from reactor operations. The radioactive (135)Cs/(137)Cs ratios are controlled by these paths. In an effort to better understand the origin of this radiation, these (135)Cs/(137)Cs ratios in effluents from three power reactor sites have been measured in offsite samples. These ratios are different from global fallout by up to six fold and as such cannot have a significant component from this source. A cesium ratio for a sample collected outside of the plant boundary provides integration over the operating life of the reactor. A sample collected inside the plant at any given time can be much different from this lifetime ratio. The measured cesium ratios vary significantly for the three reactors and indicate that the multiple paths have widely varying levels of contributions. There are too many ways these isotopes can fractionate to be useful for quantitative evaluations of operating parameters in an offsite sample, although it may be possible to obtain limited qualitative information for an onsite sample.

  11. SODIUM ALUMINOSILICATE SOLIDS AFFINITY FOR CESIUM AND ACTINIDES

    SciTech Connect

    Peters, T; Bill Wilmarth, B; Samuel Fink, S

    2007-07-31

    Washed sodium-aluminosilicate (NAS) solids at initial concentrations of 3.55 and 5.4 g/L sorb or uptake virtually no cesium over 288 hours, nor do any NAS solids generated during that time. These concentrations of solids are believed to conservatively bound current and near-term operations. Hence, the NAS solids should not have affected measurements of the cesium during the mass transfer tests and there is minimal risk of accumulating cesium during routine operations (and hence posing a gamma radiation exposure risk in maintenance). With respect to actinide uptake, it appears that NAS solids sorb minimal quantities of uranium - up to 58 mg U per kg NAS solid. The behavior with plutonium is less well understood. Additional study may be needed for radioactive operations relative to plutonium or other fissile component sorption or trapping by the solids. We recommend this testing be incorporated in the planned tests using samples from Tank 25F and Tank 49H to extend the duration to bound expected inventory time for solution.

  12. Cesium Toxicity Alters MicroRNA Processing and AGO1 Expressions in Arabidopsis thaliana.

    PubMed

    Jung, Il Lae; Ryu, Moonyoung; Cho, Seok Keun; Shah, Pratik; Lee, Ju Hye; Bae, Hansol; Kim, In Gyu; Yang, Seong Wook

    2015-01-01

    MicroRNAs (miRNAs) are short RNA fragments that play important roles in controlled gene silencing, thus regulating many biological processes in plants. Recent studies have indicated that plants modulate miRNAs to sustain their survival in response to a variety of environmental stimuli, such as biotic stresses, cold, drought, nutritional starvation, and toxic heavy metals. Cesium and radio-cesium contaminations have arisen as serious problems that both impede plant growth and enter the food chain through contaminated plants. Many studies have been performed to define plant responses against cesium intoxication. However, the complete profile of miRNAs in plants during cesium intoxication has not been established. Here we show the differential expression of the miRNAs that are mostly down-regulated during cesium intoxication. Furthermore, we found that cesium toxicity disrupts both the processing of pri-miRNAs and AGONOUTE 1 (AGO1)-mediated gene silencing. AGO 1 seems to be especially destabilized by cesium toxicity, possibly through a proteolytic regulatory pathway. Our study presents a comprehensive profile of cesium-responsive miRNAs, which is distinct from that of potassium, and suggests two possible mechanisms underlying the cesium toxicity on miRNA metabolism. PMID:25946015

  13. Mobility of cesium through the Callovo-Oxfordian claystones under partially saturated conditions.

    PubMed

    Savoye, S; Beaucaire, C; Fayette, A; Herbette, M; Coelho, D

    2012-03-01

    The diffusion of cesium was studied in an unsaturated core of Callovo-Oxfordian claystone, which is a potential host rock for retrievable disposal of high-level radioactive wastes. In-diffusion laboratory experiments were performed on rock samples with water saturation degrees ranging from 81% to 100%. The analysis of both cesium concentration monitoring in the source reservoir and post-mortem cesium rock concentration profile of the samples was carried out using a chemical-transport code where the sorption of cesium was described by a multisite ion-exchange model. The results showed that cesium exhibited a clear trend related to the saturation degree of the sample. The more dehydrated the rock sample, the slower the decrease of cesium concentration, and the thinner the penetration depth of cesium was. The effective diffusion coefficient (De) for cesium decreased from 18.5 × 10(-11) m(2) s(-1) at full-saturation to 0.3 × 10(-11) m(2) s(-1) for the more dehydrated sample. This decrease is almost 1 order of magnitude higher than that for tritiated water (HTO), although a similar behavior could have been expected, since cesium is known to diffuse in the same parts of the pore space as HTO in fully saturated claystones.

  14. Cesium Toxicity Alters MicroRNA Processing and AGO1 Expressions in Arabidopsis thaliana.

    PubMed

    Jung, Il Lae; Ryu, Moonyoung; Cho, Seok Keun; Shah, Pratik; Lee, Ju Hye; Bae, Hansol; Kim, In Gyu; Yang, Seong Wook

    2015-01-01

    MicroRNAs (miRNAs) are short RNA fragments that play important roles in controlled gene silencing, thus regulating many biological processes in plants. Recent studies have indicated that plants modulate miRNAs to sustain their survival in response to a variety of environmental stimuli, such as biotic stresses, cold, drought, nutritional starvation, and toxic heavy metals. Cesium and radio-cesium contaminations have arisen as serious problems that both impede plant growth and enter the food chain through contaminated plants. Many studies have been performed to define plant responses against cesium intoxication. However, the complete profile of miRNAs in plants during cesium intoxication has not been established. Here we show the differential expression of the miRNAs that are mostly down-regulated during cesium intoxication. Furthermore, we found that cesium toxicity disrupts both the processing of pri-miRNAs and AGONOUTE 1 (AGO1)-mediated gene silencing. AGO 1 seems to be especially destabilized by cesium toxicity, possibly through a proteolytic regulatory pathway. Our study presents a comprehensive profile of cesium-responsive miRNAs, which is distinct from that of potassium, and suggests two possible mechanisms underlying the cesium toxicity on miRNA metabolism.

  15. Effects of accompanying anions on cesium retention and translocation via droplets on soybean leaves.

    PubMed

    Yan, Dong; Zhao, Ye; Lu, Anxiang; Wang, Shuifeng; Xu, Dongyu; Zhang, Ping

    2013-12-01

    Plant foliar uptake and translocation is an important pathway for the migration of radiocesium to the human diet. This study reports the effects of accompanying anions ( [Formula: see text] , [Formula: see text] , [Formula: see text] , and I(-)) on cesium retention and translocation. An experiment to simulate cesium retention and translocation was conducted in a greenhouse by applying droplets of stable cesium solutions to the upper surface of four soybean [Glycine max (L.) Merr.] trifoliate leaves. The average percentages of cesium retention with the accompanying anions [Formula: see text] , [Formula: see text] , [Formula: see text] , and I(-) on the leaves were 7.2, 21.5, 49.3, and 10.2%, respectively. Retention values of the four treatments were stable during the 3-day exposure period, indicating that cesium could be absorbed and penetrate the cuticle quickly once it was dissolved. Scanning electron microscopy coupled with energy dispersive X-ray microanalysis showed that particles containing cesium remained on the leaf surfaces after washing. Also, nano-sized particles containing cesium were observed inside the leaf tissues. Cesium concentrations in the uncontaminated leaves, pods, stems, and roots increased during the study period indicating cesium redistribution from the contaminated leaves.

  16. Radioactive cesium dynamics derived from hydrographic observations in the Abukuma River Estuary, Japan.

    PubMed

    Kakehi, Shigeho; Kaeriyama, Hideki; Ambe, Daisuke; Ono, Tsuneo; Ito, Shin-ichi; Shimizu, Yugo; Watanabe, Tomowo

    2016-03-01

    Large quantities of radioactive materials were released into the air and the ocean as a result of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, caused by the 2011 Tohoku earthquake and the subsequent major tsunami off the Pacific coast. There is much concern about radioactive contamination in both the watershed of the Abukuma River, which flows through Fukushima Prefecture, and its estuary, where it discharges into the sea in Miyagi Prefecture. We investigated radioactive cesium dynamics using mixing diagrams obtained from hydrographic observations of the Abukuma River Estuary. Particulate radioactive cesium dominates the cesium load in the river, whereas the dissolved form dominates in the sea. As the salinity increased from <0.1 to 0.1-2.3, the mixing diagram showed that dissolved radioactive cesium concentrations increased, because of desorption. Desorption from suspended particles explained 36% of dissolved radioactive cesium in estuarine water. However, the dissolved and particulate radioactive cesium concentrations in the sea decreased sharply because of dilution. It is thought that more than 80% of the discharged particulate radioactive cesium was deposited off the river mouth, where the radioactive cesium concentrations in sediment were relatively high (217-2440 Bq kg(-1)). Radioactive cesium that was discharged to the sea was transported southward by currents driven by the density distribution. PMID:26698826

  17. Radioactive cesium dynamics derived from hydrographic observations in the Abukuma River Estuary, Japan.

    PubMed

    Kakehi, Shigeho; Kaeriyama, Hideki; Ambe, Daisuke; Ono, Tsuneo; Ito, Shin-ichi; Shimizu, Yugo; Watanabe, Tomowo

    2016-03-01

    Large quantities of radioactive materials were released into the air and the ocean as a result of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, caused by the 2011 Tohoku earthquake and the subsequent major tsunami off the Pacific coast. There is much concern about radioactive contamination in both the watershed of the Abukuma River, which flows through Fukushima Prefecture, and its estuary, where it discharges into the sea in Miyagi Prefecture. We investigated radioactive cesium dynamics using mixing diagrams obtained from hydrographic observations of the Abukuma River Estuary. Particulate radioactive cesium dominates the cesium load in the river, whereas the dissolved form dominates in the sea. As the salinity increased from <0.1 to 0.1-2.3, the mixing diagram showed that dissolved radioactive cesium concentrations increased, because of desorption. Desorption from suspended particles explained 36% of dissolved radioactive cesium in estuarine water. However, the dissolved and particulate radioactive cesium concentrations in the sea decreased sharply because of dilution. It is thought that more than 80% of the discharged particulate radioactive cesium was deposited off the river mouth, where the radioactive cesium concentrations in sediment were relatively high (217-2440 Bq kg(-1)). Radioactive cesium that was discharged to the sea was transported southward by currents driven by the density distribution.

  18. Cesium Toxicity Alters MicroRNA Processing and AGO1 Expressions in Arabidopsis thaliana

    PubMed Central

    Cho, Seok Keun; Shah, Pratik; Lee, Ju Hye; Bae, Hansol; Kim, In Gyu; Yang, Seong Wook

    2015-01-01

    MicroRNAs (miRNAs) are short RNA fragments that play important roles in controlled gene silencing, thus regulating many biological processes in plants. Recent studies have indicated that plants modulate miRNAs to sustain their survival in response to a variety of environmental stimuli, such as biotic stresses, cold, drought, nutritional starvation, and toxic heavy metals. Cesium and radio-cesium contaminations have arisen as serious problems that both impede plant growth and enter the food chain through contaminated plants. Many studies have been performed to define plant responses against cesium intoxication. However, the complete profile of miRNAs in plants during cesium intoxication has not been established. Here we show the differential expression of the miRNAs that are mostly down-regulated during cesium intoxication. Furthermore, we found that cesium toxicity disrupts both the processing of pri-miRNAs and AGONOUTE 1 (AGO1)-mediated gene silencing. AGO 1 seems to be especially destabilized by cesium toxicity, possibly through a proteolytic regulatory pathway. Our study presents a comprehensive profile of cesium-responsive miRNAs, which is distinct from that of potassium, and suggests two possible mechanisms underlying the cesium toxicity on miRNA metabolism. PMID:25946015

  19. Cesium Removal Performance of Resorcinol-Formaldehyde Resin

    SciTech Connect

    Nash, Charles A.; Duffey, Cheryl E.; Aleman, Sebastian E.; Thorson, Murray R.

    2007-07-01

    Full text of publication follows: The Department of Energy's Hanford River Protection Project is an effort to design and construct a Waste Treatment Plant (WTP) for processing and stabilization of nuclear waste from past operations at Hanford, WA. As part of that effort the Savannah River National Laboratory (SRNL) has been contracted to test technology for unit operations including the use of ion exchange to remove cesium ion from highly alkaline aqueous feed. Resorcinol-formaldehyde (RF) cationic exchange resin is highly selective for cesium under alkaline conditions. The work presented here examined the isotherm, capacity, kinetics, and column performance of a spherical form of RF. The spherical or bead form of the resin has been found to be hydraulically better than the traditional ground gel form of RF in past work, and the different method of manufacture necessitated the study of the resulting different chemical performance. The resin isotherm was found to depend primarily on sodium, potassium, and free hydroxide levels along with temperature. In addition the resin was found to have a high content (6 {+-} 0.8 meq/gram hydrogen form) of non-selective cationic sites along with roughly 0.8 meq/gram of sites that select cesium under WTP feed compositions. Standard batch contact methods were used to obtain data for isotherm modeling. Loaded resin samples were also analyzed to determine capacity and also affinities for other elements in the feeds. Chromium, iron, lead, and cadmium were found to be adsorbed by the resin while many other metals in the feed are not selected. Kinetics testing was performed to assist in modeling resin performance under dynamic conditions. Kinetics data are included in the modeling of column performance. Small columns were run to breakthrough to provide data for benchmarking. The presentation will include comparisons of isotherm models with batch data. SRNL uses a combination of Pitzer solution chemical activity modeling and an algebraic

  20. Polymorphism in magic-sized Au144(SR)60 clusters.

    PubMed

    Jensen, Kirsten M Ø; Juhas, Pavol; Tofanelli, Marcus A; Heinecke, Christine L; Vaughan, Gavin; Ackerson, Christopher J; Billinge, Simon J L

    2016-01-01

    Ultra-small, magic-sized metal nanoclusters represent an important new class of materials with properties between molecules and particles. However, their small size challenges the conventional methods for structure characterization. Here we present the structure of ultra-stable Au144(SR)60 magic-sized nanoclusters obtained from atomic pair distribution function analysis of X-ray powder diffraction data. The study reveals structural polymorphism in these archetypal nanoclusters. In addition to confirming the theoretically predicted icosahedral-cored cluster, we also find samples with a truncated decahedral core structure, with some samples exhibiting a coexistence of both cluster structures. Although the clusters are monodisperse in size, structural diversity is apparent. The discovery of polymorphism may open up a new dimension in nanoscale engineering. PMID:27297400

  1. Polymorphism in magic-sized Au144(SR)60 clusters

    NASA Astrophysics Data System (ADS)

    Jensen, Kirsten M. Ø.; Juhas, Pavol; Tofanelli, Marcus A.; Heinecke, Christine L.; Vaughan, Gavin; Ackerson, Christopher J.; Billinge, Simon J. L.

    2016-06-01

    Ultra-small, magic-sized metal nanoclusters represent an important new class of materials with properties between molecules and particles. However, their small size challenges the conventional methods for structure characterization. Here we present the structure of ultra-stable Au144(SR)60 magic-sized nanoclusters obtained from atomic pair distribution function analysis of X-ray powder diffraction data. The study reveals structural polymorphism in these archetypal nanoclusters. In addition to confirming the theoretically predicted icosahedral-cored cluster, we also find samples with a truncated decahedral core structure, with some samples exhibiting a coexistence of both cluster structures. Although the clusters are monodisperse in size, structural diversity is apparent. The discovery of polymorphism may open up a new dimension in nanoscale engineering.

  2. Polymorphism in magic-sized Au144(SR)60 clusters

    PubMed Central

    Jensen, Kirsten M.Ø.; Juhas, Pavol; Tofanelli, Marcus A.; Heinecke, Christine L.; Vaughan, Gavin; Ackerson, Christopher J.; Billinge, Simon J. L.

    2016-01-01

    Ultra-small, magic-sized metal nanoclusters represent an important new class of materials with properties between molecules and particles. However, their small size challenges the conventional methods for structure characterization. Here we present the structure of ultra-stable Au144(SR)60 magic-sized nanoclusters obtained from atomic pair distribution function analysis of X-ray powder diffraction data. The study reveals structural polymorphism in these archetypal nanoclusters. In addition to confirming the theoretically predicted icosahedral-cored cluster, we also find samples with a truncated decahedral core structure, with some samples exhibiting a coexistence of both cluster structures. Although the clusters are monodisperse in size, structural diversity is apparent. The discovery of polymorphism may open up a new dimension in nanoscale engineering. PMID:27297400

  3. Polymorphism in magic-sized Au144(SR)60 clusters.

    PubMed

    Jensen, Kirsten M Ø; Juhas, Pavol; Tofanelli, Marcus A; Heinecke, Christine L; Vaughan, Gavin; Ackerson, Christopher J; Billinge, Simon J L

    2016-06-14

    Ultra-small, magic-sized metal nanoclusters represent an important new class of materials with properties between molecules and particles. However, their small size challenges the conventional methods for structure characterization. Here we present the structure of ultra-stable Au144(SR)60 magic-sized nanoclusters obtained from atomic pair distribution function analysis of X-ray powder diffraction data. The study reveals structural polymorphism in these archetypal nanoclusters. In addition to confirming the theoretically predicted icosahedral-cored cluster, we also find samples with a truncated decahedral core structure, with some samples exhibiting a coexistence of both cluster structures. Although the clusters are monodisperse in size, structural diversity is apparent. The discovery of polymorphism may open up a new dimension in nanoscale engineering.

  4. Ionizing mechanisms in a cesium plasma irradiated with a ruby laser

    NASA Technical Reports Server (NTRS)

    Shimada, K.; Robinson, L. B.

    1975-01-01

    A cesium filled diode--laser plasmadynamic converter was built to investigate the feasibility of converting laser energy to electrical energy at large power levels. Experiments were performed with a pulsed ruby laser to determine the quantity of electrons and cesium ions generated per pulse of laser beam and to determine the output voltage. A current density as high as 200 amp/sq cm from a spot of approximately 1 sq mm area and an open circuit voltage as high as 1.5 volts were recorded. A qualitative theory was developed to explain these results. In the operation of the device, the laser beam evaporates some of the cesium and ionizes the cesium gas. A dense cesium plasma is formed to absorb further the laser energy. Results suggest that the simultaneous absorption of two ruby laser photons by the cesium atoms plays an important role in the initial ionization of cesium. Inverse bremsstrahlung absorption appears to be the dominant mechanism in subsequent processes. Recombinations of electrons and cesium ions appear to compete favorably with the simultaneous absorption of two photons.

  5. Recovery of cesium and palladium from nuclear reactor fuel processing waste

    DOEpatents

    Campbell, David O.

    1976-01-01

    A method of recovering cesium and palladium values from nuclear reactor fission product waste solution involves contacting the solution with a source of chloride ions and oxidizing palladium ions present in the solution to precipitate cesium and palladium as Cs.sub.2 PdCl.sub.6.

  6. Phase separation of cesium from lead borosilicate glass by heat treatment under a reducing atmosphere.

    PubMed

    Xu, Zhanglian; Okada, Takashi; Nishimura, Fumihiro; Yonezawa, Susumu

    2016-11-01

    A phase-separation technique for removing sodium from glass using a heat-treatment method under a reducing atmosphere was previously developed for sodium recovery from waste glass. In this study, this technique was applied to cesium-containing lead borosilicate glass to concentrate the cesium in phase-separated sodium-rich materials for efficient cesium extraction. The theoretical phase-separation temperature of the sodium-rich phase was simulated by thermodynamic equilibrium calculations and was predicted to occur below 700°C for lead borosilicate glass. Experimentally, a simulated lead borosilicate glass was melted at 1000°C and subsequently annealed below 700°C under a CO-containing reducing atmosphere. The phase separation of cesium was found to occur with sodium enrichment on the glass surface that was in contact with the gas phase, promoting cesium extraction from the treated glass using water. The cesium extraction efficiency was affected by the surface area of the treated glass that was in contact with water, and under the examined conditions, the cesium extraction efficiency was up to 66%. Phase separation using reductive heat treatment, combined with a water leaching technique, is suggested to be effective for extracting cesium incorporated in borosilicate glass waste. PMID:27368086

  7. Fiscal year 1996 laboratory scale studies of cesium elution in tank 8D-1

    SciTech Connect

    Russell, R.L.; Patello, G.K.; Sills, J.A.

    1996-09-01

    This report details work performed as part of the West Valley Support Project (WVSP) by Pacific Northwest National Laboratory (PNNL). This work is intended to support residual waste removal during high-level waste (HLW) tank stabilization activities to be performed by the West valley Demonstration Project (WVDP). The HLW originated from a now inactive commercial nuclear fuel-reprocessing plant at West Valley, New York. It is stored in a carbon-steel tank designated 8D-2. Cesium-loaded zeolite was generated by a supernatant decontamination process involving ion exchange. The exchange columns and the spent zeolite are stored in a carbon-steel tank designated 8D-1. During the vitrification phase of the WVDP waste remediation, and estimated 95 percent of the zeolite will be transferred from tank 8D-1 to tank 8D- 2. The remaining cesium-loaded zeolite will require treatment to remove the highly radioactive cesium. This report summarizes the findings of laboratory experiments. The primary objectives of these experiments were: to refine the optimum process conditions for use of oxalic acid to elute cesium from zeolite; minimize iron dissolution during cesium elution; investigation of the effect of neutralization on cesium elution; determination of effects of zeolite particle size on cesium elution; and determine if aluminum can be used as an indicator for cesium in solution.

  8. 40 CFR 144.80 - What is a Class V injection well?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... pursuant to 40 CFR 146.04). (e) Class V. Injection wells not included in Class I, II, III or IV. Typically... 40 Protection of Environment 22 2010-07-01 2010-07-01 false What is a Class V injection well? 144... Injection Wells § 144.80 What is a Class V injection well? As described in § 144.6, injection wells...

  9. Characterization of quantum efficiency and robustness of cesium-based photocathodes

    NASA Astrophysics Data System (ADS)

    Montgomery, Eric J.

    High quantum efficiency, robust photocathodes produce picosecond-pulsed, high-current electron beams for photoinjection applications like free electron lasers. In photoinjectors, a pulsed drive laser incident on the photocathode causes photoemission of short, dense bunches of electrons, which are then accelerated into a relativistic, high quality beam. Future free electron lasers demand reliable photocathodes with long-lived quantum efficiency at suitable drive laser wavelengths to maintain high current density. But faced with contamination, heating, and ion back-bombardment, the highest efficiency photocathodes find their delicate cesium-based coatings inexorably lost. In answer, the work herein presents careful, focused studies on cesium-based photocathodes, particularly motivated by the cesium dispenser photocathode. This is a novel device comprised of an efficiently photoemissive, cesium-based coating deposited onto a porous sintered tungsten substrate, beneath which is a reservoir of elemental cesium. Under controlled heating cesium diffuses from the reservoir through the porous substrate and across the surface to replace cesium lost to harsh conditions---recently shown to significantly extend the lifetime of cesium-coated metal cathodes. This work first reports experiments on coated metals to validate and refine an advanced theory of photoemission already finding application in beam simulation codes. Second, it describes a new theory of photoemission from much higher quantum efficiency cesium-based semiconductors and verifies its predictions with independent experiment. Third, it investigates causes of cesium loss from both coated metal and semiconductor photocathodes and reports remarkable rejuvenation of full quantum efficiency for contaminated cesium-coated surfaces, affirming the dispenser prescription of cesium resupply. And fourth, it details continued advances in cesium dispenser design with much-improved operating characteristics: lower temperature

  10. [Variation in amount of radioactive cesium before and after cooking dry shiitake and beef].

    PubMed

    Nabeshi, Hiromi; Tsutsumi, Tomoaki; Hachisuka, Akiko; Matsuda, Rieko

    2013-01-01

    We investigated the change of radioactive cesium content in food due to cooking in order to estimate the internal radiation exposure due to from radioactive materials in food. Our results revealed that soaking dry shiitake in water decreased the radioactive cesium content by about 50%, compared with that present in uncooked shiitake. Radioactive cesium in beef was decreased by about 10%, 12%, 60-65% and 80% by grilling, frying, boiling and stewing, respectively, compared to uncooked beef. For cooked beef, the decrease in the ratio of radioactive cesium was significantly different among the types of cooking. The decrease ratio of radioactive cesium in boiled and stewed beef was 8 times higher than that in grilled and fried beef.

  11. Permeable membranes containing crystalline silicotitanate as model barriers for cesium ion.

    PubMed

    Warta, Andrew M; Arnold, William A; Cussler, Edward L

    2005-12-15

    In diaphragm cell experiments, a permeable model reactive barrier for the containment of cesium is tested. Primary targets for cesium containment are former plutonium processing sites (e.g., Hanford, WA and Savannah River, SC), which are currently contaminated with cesium-137. Adding up to 10 wt % crystalline silicotitanate, a sacrificial reagent, to poly(vinyl alcohol) films increases the time before cesium can cross the film by a factor of 30. The increased lag times are consistent with theories developed for this type of reactive membrane. Theory also correctly predicts the effects of cesium concentration and membrane thickness on membrane performance. Because the relative improvements of the model barrier are expected to be independent of the polymer used, these increased lags should hold for less permeable polymers that are more resistant to radiation, although these polymers have not been tested. PMID:16475361

  12. DRAMATIC IMPROVEMENTS IN CAUSTIC-SIDE SOLVENT EXTRACTION OF CESIUM THROUGH MORE EFFICIENT STRIPPING

    SciTech Connect

    Delmau, Laetitia Helene; Bazelaire, Eve; Bonnesen, Peter V; Engle, Nancy L; Gorbunova, Maryna; Haverlock, Tamara; Moyer, Bruce A; Ensor, Dale; Meadors, Viola M; Harmon, Ben; Bartsch, Richard A.; Surowiec, Malgorzata A.; Zhou, Hui

    2008-01-01

    Dramatic potential improvements to the chemistry of the Caustic-Side Solvent Extraction (CSSX) process are presented as related to enhancement of cesium stripping. The current process for removing cesium from the alkaline high-level waste (HLW) at the USDOE Savannah River Site employs acidic scrub and strip stages and shows remarkable extraction and selectivity properties for cesium. It was determined that cesium stripping can be greatly improved with caustic or near-neutral stages using sodium hydroxide and boric acid as scrub and strip solutions, respectively. Improvements can also be achieved by appending pH-sensitive functional groups to the calix[4]arene-crown-6 extractant. Addition of a proton-ionizable group to the calixarene frame leads to a dramatic "pH swing" of up to 6 orders of magnitude change in cesium distribution ratio.

  13. Rational Design of Cesium-Selective Ionophores and Chemosensors: Dihydrocalix[4]arene Crown-6 Ethers

    SciTech Connect

    Sachleben, Richard A.; Bryan, Jeffrey C.; Brown, Gilbert M.; Engle, Nancy L.; Haverlock, Tamara J.; Hay, Benjamin P.; Urvoas, Agathe; Moyer, Bruce A.

    2003-12-15

    Molecular mechanics calculations performed on calix[4]arene crown-6 ethers predict that the 1,3-dihydro derivatives will exhibit greater complementarity for potassium and cesium ions than the parent 1,3-dialkoxy calix crowns. The X-ray crystal structures of 1,3-alt bis-octyloxycalix[4]arene benzocrown-6 ether, dihydrocalix[4]arene benzocrown-6 ether, and the cesium nitrate complex of dihydrocalix[4]arene benzocrown-6 ether were determined. The cesium complex structure corresponds closely to the structure predicted by molecular mechanics. The dihydrocalix[4]arene crown-6 ethers exhibit enhanced cesium selectivity in the extraction of alkali metal salts and provide a platform for a highly sensitive and selective cesium chemosensor.

  14. Modification of cesium toxicity by calcium in mammalian system.

    PubMed

    Ghosh, A; Ghosh, A K; Sharma, A; Talukder, G

    1991-11-01

    The interaction between cesium chloride CsCl and calcium chloride CaCl2 was observed in bone marrow chromosomes of mice. The two salts were administered orally to laboratory bred Swiss albino mice in vivo singly or one followed by the other, or both simultaneously. CsCl induced chromosomal aberrations in frequencies directly proportional to the dose administered. The frequency of aberrations was reduced significantly when the two chemicals were administered simultaneously or when CaCl2 was given 2 h before CsCl. Thus, CaCl2 is able to protect against the cytotoxicity of CsCl. PMID:9438035

  15. Performance of the PARCS Testbed Cesium Fountain Frequency Standard

    NASA Technical Reports Server (NTRS)

    Enzer, Daphna G.; Klipstein, William M.

    2004-01-01

    A cesium fountain frequency standard has been developed as a ground testbed for the PARCS (Primary Atomic Reference Clock in Space) experiment, an experiment intended to fly on the International Space Station. We report on the performance of the fountain and describe some of the implementations motivated in large part by flight considerations, but of relevance for ground fountains. In particular, we report on a new technique for delivering cooling and trapping laser beams to the atom collection region, in which a given beam is recirculated three times effectively providing much more optical power than traditional configurations. Allan deviations down to 10 have been achieved with this method.

  16. Field operations with cesium clocks in HF navigation systems

    NASA Technical Reports Server (NTRS)

    Christy, E. H.; Clayton, D. A.

    1982-01-01

    Networks of HF phase comparison marine navigation stations employing cesium clocks are discussed. The largest permanent network is in the Gulf of Mexico where some fourteen base stations are continuously active and others are activated as needed. These HF phase comparison systems, which operate on a single transmission path, require a clock on the mobile unit as well. Inventory consists of upwards of 70 clocks from two different manufacturers. The maintenance of this network as an operating system requires a coordinated effort involving clock preparation, clock environment control, station performance monitoring and field service.

  17. Low energy sputtering of cobalt by cesium ions

    NASA Technical Reports Server (NTRS)

    Handoo, A.; Ray, Pradosh K.

    1989-01-01

    An experimental facility to investigate low energy (less than 500 eV) sputtering of metal surfaces with ions produced by an ion gun is described. Results are reported on the sputtering yield of cobalt by cesium ions in the 100 to 500 eV energy range at a pressure of 1 times 10(exp -6) Torr. The target was electroplated on a copper substrate. The sputtered atoms were collected on a cobalt foil surrounding the target. Co-57 was used as a tracer to determine the sputtering yield.

  18. Optical transmission measurements on monocrystalline and polycrystalline cesium iodide

    NASA Technical Reports Server (NTRS)

    Viehmann, W.; Arens, J. F.; Simon, M.

    1973-01-01

    A summary is presented of optical measurements performed on a variety of cesium iodide samples to characterize quantitatively the optical quality of the materials, and to define and measure parameters which determine its suitability as a detector material for high energy cosmic ray experiments on HEAO-A. The general case of light transmission through a long rectangular slab under multiple internal reflections is discussed along with transmission and scattering as a function of wavelength at normal incidence. Scattering parameters are tabulated for encapsulated single crystal CsI and polyscin.

  19. Single-frequency tunable laser for pumping cesium frequency standards

    SciTech Connect

    Zhuravleva, O V; Ivanov, Andrei V; Leonovich, A I; Kurnosov, V D; Kurnosov, K V; Chernov, Roman V; Shishkov, V V; Pleshanov, S A

    2006-08-31

    A single-frequency tunable laser for pumping the cesium frequency standard is studied. It is shown experimentally that the laser emits at a single frequency despite the fact that a few longitudinal modes of the external cavity fall within the reflection band of a fibre Bragg grating (FBG) written in the optical fibre. The laser wavelength can be tuned by varying the pump current of the laser, its temperature, and the FBG temperature. The laser linewidth does not exceed 2 MHz for 10 mW of output power. (lasers)

  20. Modelling the transport of radioactive cesium released from the Fukushima Dai-ichi NPP with sediments through the hydrologic system

    NASA Astrophysics Data System (ADS)

    Kinouchi, T.; Omata, T.; Wei, L.; Liu, T.; Araya, M.

    2013-12-01

    Due to the accident of the Fukushima Dai-ichi Nuclear Power Plant on March 2011, a huge amount of radionuclides including Cesium-134 and Cesium-137 was deposited over the main island of Japan and the Pacific Ocean, resulting in further transfer and diffusion of Cesium through the atmospheric flow, watershed hydrological processes, and terrestrial ecosystem. Particularly, for the transfer of Cesium-134 and Cesium-137, sediments eroded and transported by the rainfall-runoff processes play an important role as Cesium tends to be strongly adsorbed to soil particles such as clay and silt. In this study, we focus on the transport of sediment and adsorbed Cesium in the watershed-scale hydrologic system to predict the long-term change of distribution of Cesium and its discharge to rivers and ocean. We coupled a physically-based distributed hydrological model with the modules of erosion and transport of sediments and adsorbed Cesium, and applied the coupled model to the Abukuma River watershed, which is located over the area of higher deposition of Cesium. In the model, complex land use and land cover distributions, and the effect of human activities such as irrigation, dam control and urban drainage system are taken into accounts. Simulation was conducted for the period of March 2011 until August 2012, with initial spatial distribution of Cesium-134 and Cesium-137 obtained by the airborne survey. Simulated flow rates and sediment concentrations agreed well with observed, and found that since the accident, two major storms in July and September 2011 transported about 50% of total sediments transported during the simulated periods. Cesium concentration in the sediment was reproduced well except for the difference in the initial periods. This difference is attributable to the uncertainty arisen from the initial distribution of Cesium in the soil and the transfer of Cesium from the forest canopy.