This report contains discussing in the following areas: Status of the Atlas accelerator; highlights of recent research at Atlas; concept for an advanced exotic beam facility based on Atlas; program advisory committee; Atlas executive committee; and ...
Energy Citations Database
The existing superconducting linac ATLAS is in many respects an ideal secondary beam accelerator for an ISOL (Isotope separator on-line) type radioactive beam facility. Such a facility would require the addition of two major accelerator elements: a low ch...
National Technical Information Service (NTIS)
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/...
Heavy-ion accelerators are tools used in the research of nuclear and atomic physics. The ATLAS facility at the Argonne National Laboratory is one such tool. The ATLAS control system serves as the primary operator interface to the accelerator. A project to...
The Argonne Tandem Linac Accelerator System (ATLAS) is a superconducting low-energy heavy ion accelerator. Its primary purpose is to provide beams for research in nuclear structure physics. This report begins with a brief history of ATLAS and then describ...
The ATLAS Positive Ion Injector (PII) is designed to replace the tandem injector for the ATLAS heavy-ion facility. When the PII project is complete, ATLAS will be able to accelerate all ions through uranium to energies above the Coulomb barrier. PII consi...
The Argonne Tandem Linac Accelerator System (ATLAS) is a superconducting low-energy heavy ion accelerator. Its primary purpose is to provide beams for research in nuclear structure physics. This report begins with a brief history of ATLAS and then describes the current design of the facility. ...
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/m pre-accelerator for radioactive ions. ...
Portions of the ATLAS accelerator have been operating now for over 21 years. The facility has accumulated several million resonator-hours of operation at this point and has demonstrated the long-term reliability of RF superconductivity. The overall operating performance of the ATLAS facility ...
DOE Information Bridge
The ATLAS facility (Argonne Tandem-Linac Accelerator System) is located at the Argonne National Laboratory. The facility is a tool used in nuclear and atomic physics research focusing primarily on heavy-ion physics. Due to the complexity of the operation ...
The existing superconducting linac ATLAS is in many respects an ideal secondary beam accelerator for an ISOL (Isotope separator on-line) type radioactive beam facility. Such a facility would require the addition of two major accelerator elements: a low charge state injector for the existing ...
The ATLAS facility (Argonne Tandem-Linac Accelerator System) is located at the Argonne National Laboratory. The facility is a tool used in nuclear and atomic physics research, which focuses primarily on heavy-ion physics. The accelerator as well as its control system are evolutionary in nature, ...
Collider-Accelerator Dept. RHIC/ATLAS Computing Facility RIKEN BNL Research Center BNL Nuclear & Particle Physics Directorate Nuclear Science Advisory Committee (NSAC) NPP...
Science.gov Websites
The experimental program at the Fragment Mass Analyzer (FMA) at the ATLAS accelerator is well under way. Experiments have been carried out at the target position and at the focal plane. After a brief facility description, some recent experimental results are presented.
The ATLAS facility has provided a total of 5749 hours of beam for research in FY1998. The accelerator operation had a very high 93% reliability factor during that period. With the startup of Gammasphere in January, our schedule has attempted to minimize s...
A subunit of the CAMAC accelerator control system of ATLAS for monitoring and, eventually, controlling the cryogenic refrigeration and distribution facility is under development. This development is the first application of a philosophy of distributed int...
The ATLAS facility at Argonne uses a tandem Van de Graaff, a booster linac, and the ATLAS linac to accelerate beams of heavy ions to energies of (5 to 25 MeV/A). The radiological hazards unique to this facility are considered along with safety considerations normally addressed at ...
This paper discusses the radiological safety system to be employed at the Argonne Tandem-LINAC Accelerator System (ATLAS). The design parameters of ATLAS that affect safety have remained unchanged since ATLAS construction began in 1982. The specialized radiological safety considerations of ...
Work on RF superconductivity focussed on the development of superconducting structures for acceleration of heavy ions. This work resulted in the development of several niobium split ring resonators for the acceleration of particles of velocity .04 v/c .2c, construction and operation since 1979 of a superconducting booster linac based on these resonators, ...
NASA Astrophysics Data System (ADS)
The Argonne Tandem Linac Accelerator System (ATLAS) facility at Argonne National Laboratory provides a wide range of accelerated heavy ions from the periodic table. Frequently, the beam delivery rate of 12 MHz is too fast for the type of experiment on lin...
The ATLAS facility at Argonne uses a tandem Van de Graaff, a booster linac, and the ATLAS linac to accelerate beams of heavy ions to energies of (5 to 25 MeV/A). The radiological hazards unique to this facility are considered along with safety considerati...
The construction of the ATLAS Positive-Ion Injector (PII) is complete and beam acceleration tests are underway. The PII consists of an ECR ion source, on a high-voltage platform, providing beam to a low-velocity-acceptance, independently-phased, superconducting linac. This injector enables the ATLAS facility to ...
The roots of ATLAS (Argonne Tandem-Linac Accelerator System) date back to the early 1960s. Located at the Argonne National Laboratory, the accelerator has been designated a National User Facility, which focuses primarily on heavy-ion nuclear physics. Like...
The ATLAS facility (Argonne Tandem-Linac Accelerator System) is located at the Argonne National Laboratory. The facility is a tool used in nuclear and atomic physics research focusing primarily on heavy-ion physics. Due to the complexity of the operation of the facility, a computerized control ...
The Argonne Tandem Linear Accelerator System (ATLAS) has been operating on a twenty-four hour, seven days a week schedule since the beginning of Fiscal Year 1994. Twenty-six different ion species ran during this period in 71 separate experiments. During the past year, there have been many projects undertaken to improve operation efficiency and upgrade ...
The goal of the Argonne Positive Ion Injector project is to replace the ATLAS tandem injector with a facility which will increase the beam currents presently available by a factor of 100 and to make available at ATLAS essentially all beams including uranium. The beam quality expected from the facility will be at ...
The construction of the Californium Rare Ion Breeder Upgrade, a new radioactive beam facility for the Argonne tandem linac accelerator system (ATLAS), is in progress. The facility will use fission fragments from a 1 Ci (252)Cf source, thermalized and collected into a low-energy particle beam by a helium gas ...
PubMed
This report highlights the research performed in 2002 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development.
This report highlights the research performed in 2003 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development.
Work on rf superconductivity at Argonne National Laboratory has, for the past twelve years, focussed on the development of superconducting structures for acceleration of heavy-ions. This work has resulted in the development of several niobium split-ring resonators for the acceleration of particles of velocity .04 < v/c < .2c, construction and ...
In the last ten years superconducting RF (sc) cavities have become a viable acceleration technique used at many facilities. Applications include electron accelerators like CEBAF, heavy ion accelerators like Atlas, and e(sup +)e(sup -) storage rings such a...
The ATLAS Positive Ion Injector (PII) is designed to replace the tandem injector for the ATLAS heavy-ion facility. When the PII project is complete, ATLAS will be able to accelerate all ions through uranium to energies above the Coulomb barrier. PII consists of an ECR ion source on a 350 KV ...
This paper reviews the design, construction status, and beam tests to date of the positive ion injector (PII) which is replacing the tandem injector for the ATLAS heavy-ion facility. PII consists of an ECR ion source on a 350 KV platform injecting a very low velocity superconducting linac. The linac is composed of an independently-phased array of ...
A subunit of the CAMAC accelerator control system of ATLAS for monitoring and, eventually, controlling the cryogenic refrigeration and distribution facility is under development. This development is the first application of a philosophy of distributed intelligence which will be applied throughout the ATLAS control ...
entire accelerator. This capability has been major factor allowing facility adhere rigorous operating Information Server Control System Website Home Page Tables Operators' Control System Manual System.1 ATLAS Control System Website The most recent software application addition to the ATLAS Control System
E-print Network
Most activity centered around two successful experiments to study excited states in exotic neutron-rich nuclei using the new gamma -ray facility at the Argonne Tandem-Linac Accelerator System (ATLAS). During the past year, the ATLAS data acquisition/analy...
This report covers the following: status of ATLAS accelerator; highlights of recent research at ATLAS; research related concept for an Advanced Exotic Beam Facility on ATLAS; program advisory committee; and ATLAS user group executive committee. Research highlights are given ...
The ATLAS Positive Ion Injector (PII) is designed to replace the tandem injector for the ATLAS heavy-ion facility. When the PII project is complete, ATLAS will be able to accelerate all ions through uranium to energies above the Coulomb barrier. PII consists of an ECR ion source on a 350 kV ...
The Positive-Ion Injector (PII) for ATLAS is complete. First beams from the new injector have been accelerated and used for experiments at ATLAS. The PH consists of an ECR ion source on a 350-kV platform and a low-velocity superconducting linac. The first acceleration of uranium for the experimental program has ...
This report discusses: Research At Atlas; Operation and Development of Atlas; Medium-Energy Nuclear Physics and Weak Interactions; Theoretical Nuclear Physics; High-Resolution Laser-rf Spectroscopy with Beams of Atoms and Molecules; Fast Ion-Beam/Laser Studies of Atomic and Molecular Structure; Interactions of Fast Atomic and Molecular Ions with Solid and ...
The expansion of the tandem-linac booster into the Argonne Tandem-Linac Accelerator System, ATLAS, is approximately 40% complete. When completed, the facility will provide beams of heavy ions from lithium to tin with energies eventually, to 25 MeV/amu. The existing facility continues to provide beams for the ...
This report contains the following topics: Status of the ATLAS Accelerator; Highlights of Recent Research at ATLAS; Program Advisory Committee; ATLAS User Group Executive Committee; FMA Information Available On The World Wide Web; Conference on Nuclear Structure at the Limits; and Workshop on Experiments with ...
This paper considers several aspects of using linacs in a radioactive beam facility in terms of the Isospin Laboratory (ISL) Benchmark Facility (BMF) plan, described in the 1991 white paper for a possible radioactive-beam laboratory. The intention is not to review comprehensively the application of linacs to an ISL facility, but to ...
The CAlifornium Rare Isotope Breeder Upgrade (CARIBU) to the Argonne Tandem-Linac Accelerator System (ATLAS) represents a highly novel approach to producing radioactive ion beams (RIBs) for nuclear physics studies. There are currently only two RIB facilities in the US. When commissioned, CARIBU will provide many exciting new ...
The construction of the ATLAS superconducting heavy-ion linear accelerator is complete. The first beam acceleration occurred on March 22, 1985. The first experiment with the ATLAS linac took place during the week of October 7, 1985. The project was comple...
Heavy-ion accelerators are tools used in the research of nuclear and atomic physics. The ATLAS facility at the Argonne National Laboratory is one such tool. The ATLAS control system serves as the primary operator interface to the accelerator. A project to upgrade the control system is presently ...
The LHC accelerator at CERN has started operation in Winter 2009, with proton beams colliding at an unprecedented center of mass energy of 7 TeV. The ATLAS detector, which will exploit the physics potential of this new research facility, is fully commissioned and operational. The ATLAS project represents the effort ...
The operation of the ATLAS Accelerator is reported. Modifications are reported, including the installation of conductive tires for the Pelletron chain pulleys, installation of a new high frequency sweeper system at the entrance to the linac, and improveme...
A description is given of recent developments in the target facility at Argonne National Laboratory. Highlights include equipment upgrades which enables us to provide enhanced capabilities for support of the Argonne Heavy-Ion ATLAS Accelerator Project. Also future plans and additional equipment acquisitions will be discussed. 3 refs., ...
A description is given to some recent developments in the target facility at Argonne National Laboratory. Highlights include equipment upgrades which enable us to provide enhanced capabilities for support of the Argonne Heavy-Ion ATLAS Accelerator Program. Work currently in progress is described and future prospects discussed. 8 refs.
The possibility of simultaneously accelerating particles with a range of charge-to-mass ratios ( approximately 20%) to the same energy is proposed and demonstrated for a superconducting linac. Uranium ions stripped in a foil with eight charge states have been accelerated through a portion of the ATLAS linac from 286 to 690 MeV, with ...
The possibility of simultaneously accelerating particles with a range of charge-to-mass ratios ( ~20%) to the same energy is proposed and demonstrated for a superconducting linac. Uranium ions stripped in a foil with eight charge states have been accelerated through a portion of the ATLAS linac from 286 to 690 MeV, with 94% of the ...
The construction of the Californium Rare Ion Breeder Upgrade, a new radioactive beam facility for the Argonne Tandem Linac Accelerator System (ATLAS), is nearing completion. The facility will use fission fragments from a 1 Ci (252)Cf source; thermalized and collected into a low-energy particle beam by a helium gas ...
The construction of the Californium Rare Ion Breeder Upgrade, a new radioactive beam facility for the Argonne Tandem Linac Accelerator System (ATLAS), is nearing completion. The facility will use fission fragments from a 1 Ci 252Cf source; thermalized and collected into a low-energy particle beam by a helium gas ...
The operation and development of ATLAS are reported, including accelerator improvements. Particularly noted is an upgrade to extend the mass range of projectiles up to uranium and to increase the beam intensity by at least two orders of magnitude for all ions. Meetings are discussed, particularly of the Program Advisory Committee and the User Group ...
Most activity centered around two successful experiments to study excited states in exotic neutron-rich nuclei using the new ..gamma..-ray facility at the Argonne Tandem-Linac Accelerator System (ATLAS). During the past year, the ATLAS data acquisition/analysis code DAPHNE has become transportable, and we have ...
A summary of recent developments in ECRIS technology taking place at Argonne National Laboratory is presented in this paper. A pulsed laser for ablation of solid material into the source plasma has been used online with the ATLAS PII-ECRIS and has allowed direct time measurements to be made which verify and quantify sequential, step-by-step ionization taking place in an ECRIS. ...
... joint planning, national and international ... ACCELERATORS, *PROTON ACCELERATORS, PARTICLE ACCELERATOR TECHNIQUES ...
DTIC Science & Technology
An existing accelerator system at Argonne National Laboratory (ANL) has been upgraded and is being extended to provide heavy ions with energies well above the nuclear binding energies (5-25 MeV/A). The final configuration of the system, called the Argonne Tandem-LINAC Accelerator System (ATLAS), is to become a user-oriented national ...
The Fragment Mass Analyzer (FMA) at the ATLAS accelerator has been operational for about one year. During that period a number of test runs and experiments have been carried out. The test runs have verified that the ion optics of the FMA are essentially as calculated. A brief facility description is followed by recent experimental ...
This is the Argonne National Laboratory Physics Division Annual Report for the period April 1, 1993 to March 31, 1994. It summarizes work done in a number of different fields, both on site, and at other facilities. Chapters describe heavy ion nuclear physics research, operation and development of the ATLAS accelerator, medium-energy ...
A new 14 GHz Electron-Cyclotron-Resonance Ion Source (ECRIS) has been designed and built over the last two years. The source, which is a modification of the AECR at Berkeley, incorporates the latest results from ECR developments to produce intense beams o...
In a series of experiments at the Argonne ATLAS Accelerator Facility, several (alpha) emitters near the proton drip line were produced with fusion evaporation reactions, separated from the beam and dispersed in M/Q with a recoil mass spectrometer, and imp...
This paper presents new results obtained using the US national gamma-ray facility Gammasphere, which has been operating at the ATLAS accelerator at Argonne National Laboratory since January 1998. Gammasphere was built at Lawrence Berkeley Laboratory and u...
This paper presents new results obtained using the US national gamma-ray facility Gammasphere, which has been operating at the ATLAS accelerator at Argonne National Laboratory since January 1998. Gammasphere was built at Lawrence Berkeley Laboratory and used primarily as a powerful spectrometer for studying nuclei at the highest spins.
The transport of silver in CVD (beta)-SiC has been studied using ion implantation. Silver ions were implanted in (beta)-SiC using the ATLAS accelerator facility at the Argonne National Laboratory. Ion beams with energies of 93 and 161 MeV were used to ach...
In the fall of 1992 at the SNEAP (Symposium of North Eastern Accelerator Personnel) a project to upgrade the ATLAS (Argonne Tandem Linear Accelerator System) control system was first reported. Not unlike the accelerator it services the control system will...
Beam tests of the ANL 12 MHz Radio-Frequency Quadruple (RFQ), designed for use as the initial element of an injector system for radioactive beams into the existing ATLAS accelerators, are in progress. Recent high-voltage tests of the RFQ without beam achieved the design intervane voltage of 100 kV CW, enabling beam tests with A/q as large as 132 using ...
This paper presents the status of accelerator facilities in North America that are involved in research using radioactive nuclear beams (RNB), including existing and operating facilities, ones currently under construction or undergoing major upgrades, and ones being planned or proposed for the future. Existing RNB ...
This report is aimed at informing users about the operating schedule, user policies, and recent changes in research capabilities. It covers the following subjects: (1) status of the Argonne Tandem-Linac Accelerator System (ATLAS) accelerator; (2) the move of Gammasphere from LBNL to ANL; (3) commissioning of the CPT mass spectrometer ...
Gas catchers allow the transformation of radioactive recoils from various sources into a good optical quality low-energy radioactive beam that is then available for experiments at low-energy or for further acceleration. The CARIBU project uses such a large gas catcher to create beams of neutron-rich isotopes from a Californium source for post-acceleration ...
Argonne National Laboratory now has two groups working on the application of RF superconductivity to particle accelerators. In the Physics Division, work in RFSC began in 1971 and led to the first superconducting heavy-ion accelerator (ATLAS). Recently, work has focused on the upgrade of the facility by replacing ...
This report highlights the activities of the Physics Division of Argonne National Laboratory in 2006. The Division's programs include the operation as a national user facility of ATLAS, the Argonne Tandem Linear Accelerator System, research in nuclear structure and reactions, nuclear astrophysics, nuclear theory, ...
The superconducting linear accelerator for heavy ions is discussed. The superconducting linac is expanded into a larger facility, the ATLAS. The research program, uses the unique properties of the present linac. Experiments are carried out on the importance of quasielastic and particularly neutron-transfer reactions as a dominant ...
ATLAS, the Argonne Tandem-Linac Accelerator System, is a project to upgrade the existing Argonne superconducting linac heavy-ion booster which began providing beams of heavy-ions for experimental nuclear research in 1979. When completed ATLAS will provide beams of heavy ions up to approximately mass 130 at energies as high as 25 MeV/A. ...
A scheme for building an ISOL-based radioactive nuclear beam facility at the Argonne Physics Division, is currently evaluated. The feasibility and efficiency of the different steps in the proposed production- and acceleration cycles are being tested. At the Dynamitron Facility of the ANL Physics Division, stripping yields of Kr, Xe and ...
Summarized in this report is the progress achieved during the period from November 1, 1992 to October 31, 1993 under Contract Number DE-FG05-88ER40459. The experimental work described in this report is in electromagnetic and heavy-ion nuclear physics. The effort in electromagnetic nuclear physics is in preparation for the research program at the Continuous Electron Beam ...
In response to a need for better management of maintenance and document information at the Argonne Tandem-Linear Accelerating System (ATLAS), the ATLAS Information Management System (AIMS) has been created. The system is based on the relational database m...
ATLAS is a heavy-ion accelerator system consisting of a 9-MV tandem electrostatic injector coupled to a superconducting linac. A project now well advanced will upgrade the capabilities of ATLAS immensely by replacing the tandem and its negative-ion source...
5 days ago ... Vertical Integration Facility (VIF). Atlas Spaceflight Operations Facility (ASOC ). |. Space Launch Complex-41 ...
NASA Website
The Positive Ion Injector (PII) is part of the Uranuim upgrade for ATLAS accelerator at Argonne National Laboratory. This paper will include a technical discussion of the Positive Ion Injector (PII) accelerator with its superconducting, niobium, very low-...
The operation and development of ATLAS are reported, including accelerator improvements. Particularly noted is an upgrade to extend the mass range of projectiles up to uranium and to increase the beam intensity by at least two orders of magnitude for all ...
The ability to manipulate the energy spread and time width of the beam from the ATLAS linac is an important feature used by the experimental program at Argonne. The time resolution which can be obtained on target has been shown to be less than 150 ps. for...
This revised proposal for the construction of the Argonne Tandem-Linac Accelerator System (ATLAS) is in all essentials the same as the proposal originally presented to NUSAC in March 1978. The only differences worth mentioning are the plan to expand the e...
The major emphasis of our experimental nuclear physics research is in Heavy-Ion Physics, centered at the recently completed ATLAS facility. ATLAS is a designated National User Facility and is based on superconducting radio-frequency technology developed in the Physics Division. In addition, the Division has strong ...
The construction of the Californium Rare Isotope Breeder Upgrade (CARIBU) for the Argonne National Laboratory ATLAS facility is completed and its commissioning is being performed. In its full capacity, the CARIBU facility will use fission fragments from a 1 Curie (Ci) 252Cf source. The ions will be thermalized and collected into a ...
The construction of the ATLAS superconducting heavy-ion linear accelerator is complete. The first beam acceleration occurred on March 22, 1985. The first experiment with the ATLAS linac took place during the week of October 7, 1985. The project was completed on time and within budget. Initial system performance has ...
The Atlas provides maps, data, and narrative descriptions of the bays and harbors of the Hawaiian Archipelago. Information is given on the geography and geology, the weather, tides, the coastal currents, port services and facilities. Proposed improvements...
It is NOAA's premier online facility for the distribution of NOAA and U.S. Department of Defense ... 75. Atlas of the Biosphere [SAGE_ATLAS] ...
It is NOAA's premier online facility for the distribution of NOAA and U.S. Department of Defense ... 76. Atlas of the Biosphere [SAGE_ATLAS] ...
In recent tests without beam, the Argonne 12 MHz split-coaxial radio-frequency quadruple (RFQ) achieved a cw intervane voltage of more than 100 kV, the design operating voltage for the device. This voltage is sufficient for the RFQ to function as the first stage of a RIB injector for the Argonne Tandem Linear Accelerator System (ATLAS). Previously reported ...
In recent tests without beam, the Argonne 12 MHz split-coaxial radio-frequency quadrupole (RFQ) achieved a cw intervane voltage of more than 100 kV, the design operating voltage for the device. This voltage is sufficient for the RFQ to function as the first stage of a RIB injector for the Argonne Tandem Linear Accelerator System (ATLAS). Previously ...
... Title : Experimental Evaluation of Track Accelerator ... a full scale accelerator which would ... Subject Categories : TEST FACILITIES, EQUIPMENT AND ...
... conducted on accelerator facilities, involving zero ... of similar exposures on accelerators. ... IMPACT ACCELERATION, EXPERIMENTAL DATA, HIGH ...
The major emphasis of our experimental nuclear physics research is in Heavy-Ion Physics, centered at the recently completed ATLAS facility. ATLAS is a designated National User Facility and is based on superconducting radio-frequency technology developed i...
... Study of the Requirements for an Acceleration Facility for Bio-Engineering Research and the Feasibility of Establishing Such in the Atlanta Area. ...
... BEAMS, BREMSSTRAHLUNG, GAMMA RAY SPECTROSCOPY, PARTICLE ACCELERATOR COMPONENTS, LINEAR ACCELERATORS. ...
... Descriptors : *LINEAR ACCELERATORS, *ELECTRON ACCELERATORS, AIR FORCE RESEARCH, TEST FACILITIES, ELECTRON BEAMS ...
New features of the level structures of {sup 107,108,109}Sn that have been observed following the beta decay of {sup 107,108,109}Sb are reported. The recoiling Sb nuclides were isolated using the Fragment Mass Analyzer at the ATLAS accelerator facility. Low-energy levels with strong configuration admixtures of the ({nu}g{sub 7/2}){sub ...
New features of the level structures of 107,108,109Sn that have been observed following the beta decay of 107,108,109Sb are reported. The recoiling Sb nuclides were isolated using the Fragment Mass Analyzer at the ATLAS accelerator facility. Low-energy levels with strong configuration admixtures of the (?g7/2)5/23 are identified in ...
We have studied the spectrum of highly ionized krypton in the extreme-ultraviolet wavelength region (50-300 angstrom), using beam-foil excitation of fast krypton ions at the Argonne ATLAS accelerator facility. We report measurements of transition wavelengths and excited-state lifetimes for n = 2 states in the lithiumlike, ...
In the last ten years superconducting RF (sc) cavities have become a viable acceleration technique used at many facilities. Applications include electron accelerators like CEBAF, heavy ion accelerators like Atlas, and e{sup +}e{sup -} storage rings such as Tristan. The advantage of sc cavities ...
The goal of the Argonne Positive Ion Injector project is to replace the ATLAS tandem injector with a facility which will increase the beam currents presently available by a factor of 100 and to make available at ATLAS essentially all beams including urani...
The Californium Rare Ion Breeder Upgrade (CARIBU) of the ATLAS superconducting linac facility aims at providing low energy and reaccelerated neutron-rich radioactive beams to address key nuclear physics and astrophysics questions. These beams are obtained from fission fragments of a 1 Ci 252Cf source, thermalized and collected into a low-energy particle ...
Argonne National Laboratory new has two groups working on the application of rf superconductivity to particle accelerators. In the Physics Division, work in RFSC began in 1971 and led to the first superconducting heavy-ion accelerator (ATLAS). Recently, work has focused on the upgrade of the facility by replacing ...
The principle of the proposed experiment is to irradiate very pure actinide samples in the Advanced Test Reactor (ATR) at INL and, after a given time, determine the amount of the different transmutation products. The determination of the nuclide densities before and after neutron irradiation will allow inference of effective neutron capture cross-sections. This approach has been used in the past ...
The Californium Rare Ion Breeder Upgrade (CARIBU) to the ATLAS superconducting linac facility is currently being commissioned. It provides low-energy and re-accelerated beams of neutron-rich isotopes obtained from 252Cf fission. The fission products from a 252Cf source are stopped in a large high-intensity gas catcher, thermalized and ...
A superconducting analyzer magnet for particle beam deflection has been designed and is being fabricated for use at the Argonne Tandem-Linac Accelerator System (ATLAS). This six tesla magnet will provide 45/sup 0/ of deflection for the heavy-ion beams from the ATLAS tandem electrostatic accelerator and together ...
The operation of the ATLAS Accelerator is reported. Modifications are reported, including the installation of conductive tires for the Pelletron chain pulleys, installation of a new high frequency sweeper system at the entrance to the linac, and improvements to the rf drive ports of eight resonators to correct failures in the thermally conductive ceramic ...
The ATLAS facility has provided a total of 5749 hours of beam for research in FY1998. The accelerator operation had a very high 93% reliability factor during that period. With the startup of Gammasphere in January, our schedule has attempted to minimize scheduled downtime and maximize beam-time for research. Our best performance so far ...
This report summarizes the research performed in 2000 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory and medium energy physics research, and accelerator research and development. As ...
A next generation radioactive beam facility, the Rare Isotope Accelerator (RIA), is in preparation in the US. RIA aims at producing intense beams of radioactive isotopes and providing them to experimental stations with energy variable from ion source energy to a few hundred MeV/u. To perform this task, RIA will use standard ISOL and fragmentation ...
Apr 10, 2009 ... The Atlas V is scheduled to be moved from the hangar at the Atlas Space Operations Facility to the Vertical Integration Facility near the ...
The Argonne concept for an accelerator complex for efficiently producing high-quality radioactive beams from ion source energy up to 6-15 MeV/u is described. The Isotope-Separator-On-Line (ISOL) method is used. A high-power driver accelerator produces radionuclides in a target that is closely coupled to an ion source and mass separator. By using a driver ...
At Space Launch Complex 41, the Juno spacecraft, enclosed in an Atlas payload fairing. Juno at the Vertical Integration Facility ...
At Space Launch Complex 41, the Juno spacecraft, enclosed in an Atlas payload fairing, was transferred into the Vertical Integration Facility where it was ...
... within the eastern US and Canada. ... programs and natural resource agencies ... FORESTS, CANADA, NATURAL RESOURCES, MILITARY FACILITIES ...
... was transported from the hangar at the Atlas Spaceflight Operations Center ( ASOC), to the Vertical Integration Facility located at Launch Complex 41. ...
Targets of lead, tantalum, thorium and uranium have been produced for experiments with the APEX (Argonne Positron Experiment) apparatus at ATLAS (Argonne Tandem Linac Accelerator System). APEX is a device built at Argonne National Laboratory to investigat...
This paper reports the status of hardware development for the linac portion of the Argonne tandem-linac accelerator system (ATLAS). The ATLAS superconducting linac consists of an independent-phased array of 45 superconducting niobium resonators of the spl...
Argonne's ATLAS (Argonne Tandem-Linac Accelerator System) control system comprises two separate database concepts. The first is the distributed real-time database structure provided by the commercial product Vsystem (1). The second is a more static relati...
The recently completed Positive-Ion Injector for the heavy-ion accelerator ATLAS is a replacement for the tandem injector of the present tandem-linac system. Unlike the tandem, the new injector provides ions from the full range of the periodic table. The ...
Starting in 1978 with one small refrigerator and distribution line, the LHe system of ATLAS has gradually grown into a complex network, as required by several enlargements of the superconducting linac. The cryogenic system now comprises 3 refrigerators, 1...
The Gammasphere array of Compton-suppressed spectrometers has just completed a cycle of experiments at the ATLAS accelerator at Argonne National Laboratory. A majority of experiments studied the properties of nuclei at the very limits of stability in vari...
The Fragment Mass Analyzer (FMA) at the ATLAS accelerator has been operational for about one year. During that period a number of test runs and experiments have been ran. The test runs have verified that the ion optics of the FMA are essentially as calcul...
A secondary beam of radioactive (sup 17)F was produced at the ATLAS accelerator and delivered to an experimental target station with an intensity of at least 2 x 10(sup 5) particles per second for use in the research program. The beam was produced through...
The construction of the ATLAS Positive-Ion Injector (PII) is complete and beam acceleration tests are underway. The PII consists of an ECR ion source, on a high-voltage platform, providing beam to a low-velocity-acceptance, independently-phased, supercond...
Beam tests of the ANL 12 MHz Radio-Frequency Quadruple (RFQ), designed for use as the initial element of an injector system for radioactive beams into the existing ATLAS accelerators, are in progress. Recent high-voltage tests of the RFQ without beam achi...
The Californium Rare Ion Breeder Upgrade (CARIBU) of the ATLAS superconducting linac facility aims at providing low energy and reaccelerated neutron-rich radioactive beams to address key nuclear physics and astrophysics questions. These beams are obtained from fission fragments of a 1 Ci ^252Cf source, thermalized and collected into a low-energy particle ...
The study of atomic physics with highly-charged ions is an area of intense activity at the present time because of a convergence of theoretical interest and advances in experimental techniques. The purpose of the Argonne ''Workshop on Opportunities for Atomic Physics Using Slow, Highly-Charged Ions'' was to bring together atomic, nuclear, and ...
This report summarizes the research performed in the past year in the Argonne Physics Division. The Division's programs include operation of ATLAS as a national heavy-ion user facility, nuclear structure and reaction research with beams of heavy ions, accelerator research and development especially in superconducting radio ...
The Positive Ion Injector (PII) is part of the Uranuim upgrade for ATLAS accelerator at Argonne National Laboratory. This paper will include a technical discussion of the Positive Ion Injector (PII) accelerator with its superconducting, niobium, very low-velocity accelerating structures. It will also discuss the ...
Oct 5, 2005 ... 29 at Complex 41 in the Vertical Integration Facility. If weather permits, the Centaur stage will be hoisted on top of the Atlas booster ...
The ATLAS accelerator consists of a HVEC model FN tandem accelerator injecting into a linac of independently-phased niobium superconducting resonators. The accelerator provides beams with masses 6<=A<=127 and with energies ranging up to 20 MeV/A for the lightest ions and 4 MeV/A for the heaviest ions. ...
The Argonne Tandem Linear Accelerator System (ATLAS) at Argonne National Laboratory (ANL) provides a wide range of stable ion beams and radioactive beams which have contributed to our understanding of nuclear structure and reactions. Until now, most radioactive ion beams at ATLAS were produced in flight using light-ion reactions such ...
The past year has seen several of the Physics Division`s new research projects reach major milestones with first successful experiments and results: the atomic physics station in the Basic Energy Sciences Research Center at the Argonne Advanced Photon Source was used in first high-energy, high-brilliance x-ray studies in atomic and molecular physics; the Short Orbit Spectrometer in Hall C at the ...
The Centaur launch record is summarized and the Atlas/Centaur launch schedule is ... pulses from a high-quality superconducting linear accelerator (LINAC). ...
