Policy frameworks to accelerate innovation Education and background training M.B.A. in finance, University of Colorado, 2010 B.A. in international relations, Brown University, 2001...
National Renewable Energy Laboratory (NREL)
Detailed calculations of the accelerator related background in the CDF forward muon spectrometer have been performed with the MARS13 code and a newly developed C++ code for particle tracking in accelerator lattices. Calculated space distributions of background hits are in a good agreement with ...
DOE Information Bridge
Peculiar velocities change the expansion rate of any observer moving relative to the smooth Hubble flow. As a result, observers in a galaxy like our Milky Way can experience accelerated expansion within a globally decelerating universe, even when the drift velocities are small. The effect is local, but the affected scales can be large enough to give the ...
NASA Astrophysics Data System (ADS)
Synchrotron emission suggests the presence of TeV electrons at various astrophysical objects. We propose a mechanism for the acceleration of electrons to ultrahigh energies (UHE) by intense electrostatic waves (ESWs). The latter are driven by dense proton beams that move at relativistic speeds relative to a background plasma and the ...
There are a number of novel instrumentation issues relating to the generation cooling and acceleration of high power muon beams. Specific issues are monitoring the cooling water in the magnet nearest the target to minimize corrosion, monitoring the behavior of the target after the impact of the beam, and following the beam through the cooling ...
This applet simulates the motion of a single planet around a star. The user can alter the eccentricity and semi-major axis of the orbit, and the velocity of the star relative to a fixed background. The applet can show the acceleration of the planet, and its velocity relative to a stationary observer, or ...
NSDL National Science Digital Library
It has been argued that the underlying acceleration mechanism in many extreme Solar Energetic Particle (SEP) events is diffusive shock acceleration. Energetic particles in these events often reach � GeV/nucleon in relatively short period of time. This places a strong constraint on the applicability of the diffusive shock ...
... New Zealand: Background and Bilateral Relations with the United States ... New Zealand: Background and Bilateral Relations with the United States ...
DTIC Science & Technology
... Jamaica: Background and US Relations Mark P. Sullivan ... 4. TITLE AND SUBTITLE Jamaica: Background and US Relations 5a. ...
Order Code RL33808 Germany's Relations with Israel: Background and Implications ... Page 3. Germany's Relations with Israel: Background and ...
Detailed STRUCT simulations are performed on beam loss rates in the vicinity of the BTeV detector in the Tevatron CO interaction region due to beam-gas nuclear elastic interactions and out-scattering from the collimation system. Corresponding showers induced in the machine components and background rates in BTeV are modeled with the MARS14 code. It is shown that the ...
Decay electrons of 2 TeV muon beam with their synchrotron radiation in detector magnetic fields of 4T are the main ARB (Accelerator Related Backgrounds) which are much higher then the IPB(Interaction Point Backgrounds) of proton-proton and proton-antiproton colliders and very much higher then that of ...
Calculations of backgrounds for cosmic ray candidates for new particles in emulsions are summarized. Even if only the strongest cosmic ray candidates are accepted as genuine, the implication is that their production cross sections would be relatively large at accelerator energies (greater than or equal to 1..mu..b) and that decay modes ...
Energy Citations Database
... Descriptors : (*PARTICLE TRAJECTORIES, *LINEAR ACCELERATORS), TRAVELING WAVE ELECTRON ACCELERATORS, RELATIVITY ...
The observed spectra of blazars, their intrinsic emission, and the underlying populations of radiating particles are intimately related. The use of these sources as probes of the extragalactic infrared background, a prospect propelled by recent advances in TeV-band telescopes, soon to be augmented by observations by NASA's upcoming Gamma-Ray Large Area ...
Detailed Monte Carlo simulations are performed on radiation environment in the LHC IP5 interaction region at the locations of the TOTEM Roman Pots proposed to detect particles produced at very small angles in the elastic scattering and diffraction dissociation processes at the LHC. Radiation loads on these detectors are calculated with the MARS14 code both of the pp-collision origin and beam loss ...
The apparatus is for phasing a linear accelerator waveguide section. The system is useful for phasing very long accelerators. The phase relation of the electromagnetic energy at different points in each accelerator section is utilized.
National Technical Information Service (NTIS)
We consider Double Quintessence models for which the Dark Energy sector consists of two coupled scalar fields. We study, in particular, the possibility to have a transient acceleration in these models. In both Double Quintessence models studied here, it is shown that, if acceleration occurs, it is necessarily transient. We consider also the possibility to ...
... Descriptors : *BETATRONS, BACKGROUND, IONS, ELECTROMAGNETIC RADIATION, INTERACTIONS, WAVES, GROWTH(GENERAL), RATES ...
Diffusive shock acceleration is discussed in terms of its potential to accelerate cosmic rays (CR) to 1018 eV (beyond the ``knee,'' as observations suggest) and in terms of the related observational signatures (spectral features). One idea to reach this energy is to resonantly generate a turbulent magnetic field via ...
... Title : Background and Personality Characteristics Related to Student Satisfaction and Performance in Field Medical Service School. ...
Effect of changing resultant linear acceleration relative to human subject on nystagmus generated by
NASA Technical Reports Server (NTRS)
We investigate a possible connection between the suppression of the power at low multipoles in the cosmic microwave background (CMB) spectrum and the late time acceleration. We show that, assuming a cosmic IR/UV duality between the UV cutoff and a global infrared cutoff given by the size of the future event horizon, the equation of state of the dark energy ...
PubMed
Femtosecond synchrotron pulses of <200 fs duration are generated at the Advanced Light Source beamline 5.3.1 via laser manipulation of the stored electron beam. We demonstrate a peak laser acceleration of >13 MeV relative to the nominal 1.9 GeV beam energy. Femtosecond pulses are effectively isolated from the long-pulse ...
Activities at the 88-Inch Cyclotron are discussed. Increased beam time demand and operation of the ECR source and cyclotron are reported. Experimental facility improvements are reported, including improvements to the High Energy Resolution Array and to the Recoil Atom Mass Analyzer, a new capture beamline, development of a low background counting facility. Other general ...
This web page provides a multimedia introduction to Newton's laws. It includes topics such as inertial and non-inertial frames, relative motion, forces, mass, acceleration, and a few examples demonstrating Newton's laws. Short video clips, still images, graphs, and diagrams are integrated with text to promote understanding of important concepts. This ...
We derive classes of exact solitonic solutions of the time-dependent Gross-Pitaevskii equation with repulsive and attractive interatomic interactions. The solutions correspond to a string of bright solitons with phase difference between adjacent solitons equal to {pi}. While the relative phase, width, and distance between adjacent solitons turn out to be a constant of the ...
The construction of a differential Cerenkov counter having a velocity resolving power ..delta beta../..beta.. approximately 10/sup -3/ and a low background level is described. The relative yields are given for particles having the momenta 3.5 and 5 GeV/c, which are included in the composition of the beam which is extracted in the 2-m liquid-hydrogen ...
It is shown that the recently detected acceleration of the Uuniverse can be understood by considering a modification of the teleparallel equivalent of general relativity, with no need of dark energy. The solution also exhibits phases dominated by matter and radiation as expected in the standard cosmological evolution. We perform a joint analysis with ...
Observations of charged particles during events of solitary waves and weak double layer-like structures by the Swedish magnetospheric research satellite Viking are discussed. The observations took place in relatively weak acceleration regions at altitudes between 1 and 2 R{sub E}. The total accelerating potential was typically somewhat ...
We describe the background and status of a superconducting microwave clock suitable for relativity experiments in earth orbit. The project has the capability of performing improved tests of Lorentz invariance via a Michelson-Morley type experiment, and setting new limits on nine parameters in the Standard Model Extension. If flown with a high stability ...
CRS Report for Congress Prepared for Members and Committees of Congress Singapore: Background and US Relations ... US-Singapore Relations ...
The results of the pulse magnetic field formation of the accelerating magnetic system for the heavy ion collective accelerator prototype are presented. Magnetic field distribution in the acceleration region is measured. The relative gradient is close to t...
Some of the dynamic characteristics of the human body were analyzed and mathematical analogs that can be used to predict the response of the body to acceleration environments were developed. The background of the acceleration tolerance problem, the basic ...
Feb 12, 2008 ... Accelerated Basic Emergency Management Background Course Completion Information. by Mark Allard, KD6CWM. May 18, 2006. (added this ...
NASA Website
Page 1. Order Code RL31707 Sri Lanka: Background and US Relations ... Page 3. Sri Lanka: Background and US Relations Summary ...
... Order Code RL31707 Sri Lanka: Background and US Relations ... Page 3. Sri Lanka: Background and US Relations Summary ...
Order Code RL31718 Qatar: Background and US Relations Updated January 24, 2008 ... Page 3. Qatar: Background and US Relations Summary ...
... Order Code RL31718 Qatar: Background and US Relations Updated March 17, 2004 ... Page 3. Qatar: Background and US Relations Summary ...
In this paper we give an introductory discussion of high intensity hadron accelerators with special emphasis on the high intensity feature. The topics selected for this discussion are: Types of acclerator - The principal actions of an accelerator are to confine and to accelerate a particle beam. Focusing - This is a discussion of the ...
... between 1 '� them, thus preventing motion relative to the head during acceleration. The connection ... I i�.+:acceleration. IIHSP ...
This invention is related to feedforward control processes and, more particularly, to adaptive feedforward processes for controlling particle accelerators. An adaptive feedforward control loop is provided to stabilize accelerator beam loading of the radio...
This invention related generally to improvements in the acceleration sensitivity of quartz crystal oscillators and more particularly to the elimination of acceleration-induced frequency shifts in such oscillators. A crystal oscillator, including two cryst...
In this activity, students interpret the motion of a car using its related velocity and acceleration vectors.
Some personal recollections are presented that relate to the author's experience developing linear accelerators, particularly for protons. (LEW)
Some personal recollections are presented that relate to the author`s experience developing linear accelerators, particularly for protons. (LEW)
DOE R&D Accomplishments Database
Evaluate speed, velocity, and acceleration both qualitatively and quantitatively . ... Distinguish between velocity and acceleration as related to force. ...
This report discusses the following topics in relation to the Bevalac accelerator: accelerator technology operations summary; nuclear science; biomedical research; and publications and presentations.
I start with assuming a gravitational scalar field as the dark-energy supposed to be responsible for the accelerating universe. Also from the point of view of unification, a scalar field implies a time-variability of certain �constants� in Nature. In this context I once derived a relation for the time-variability of the fine-structure constant ?: ??/? ...
The novel crab waist collision scheme under test at the DA{Phi}NE Frascati {Phi}-factory finds its natural application to the SuperB project, the asymmetric e{sup +}e{sup -} flavour factory at very high luminosity with relatively low beam currents and reduced backgrounds. The SuperB accelerator design requires a careful choice of beam ...
Detailed simulations were performed on beam loss rates in the vicinity of the Tevatron Collider detectors due to beam-gas nuclear elastic interactions. It turns out that this component can drive the accelerator-related background rates in the CDF and D0 detectors, exceeding those due to outscattering from collimation system, inelastic beam-gas interactions ...
Models with vector fields acquiring a nonvanishing vacuum expectation value along one spatial direction have been proposed to sustain a prolonged stage of anisotropic accelerated expansion. Such models have been used for realizations of early time inflation, with a possible relation to the large scale cosmic microwave background ...
... Title : A STUDY OF PERSONAL AND MILITARY BACKGROUND FACTORS RELATED TO MARKSMANSHIP IN THE MARINE CORPS RESERVE ...
Using the method of albedo dosimetry, the neutron and photon dose and the mean (effective) neutron energy has been determined in the radiation fields of four different electron accelerators (two linear accelerators, two betatrons). Thermoluminescence-dose...
The contribution focuses on the 400 kV accelerator which will be installed in the underground laboratory of the Laboratori Nazionali del Gran Sasso (Italy) in the year 2000. Special emphasis will bes put on the properties of the accelerator and the gamma detector systems giving high detection efficiency and low background. .
The development of new neutron sources for BNCT applications, based on particle accelerators is currently underway all over the world. Though nuclear reactors were used for a long time as the only neutron source available having the requested flux levels, the accelerator-based ones have recently been investigated on the other hand due to its easy-to-use ...
... REGIONS, TIME, PARTICLES, MATHEMATICAL ... DIPOLES, BACKGROUND, LOSSES, DIFFUSION ... Categories : PARTICLE ACCELERATORS. ...
We present a purely relativistic effect according to which asymmetric oscillations of a quasirigid body slow down or accelerate its fall in a gravitational background.
photons will contribute to the diffuse photon background. Assuming ... photons to the photon back- ground. Based upon this, the following lifetime ...
Deviations from general relativity, such as could be responsible for the cosmic acceleration, would influence the growth of large-scale structure and the deflection of light by that structure. We clarify the relations between several different model-independent approaches to deviations from general relativity ...
The accelerating expansion of the Universe at recent epochs has called into question the validity of general relativity on cosmological scales. One probe of gravity is a comparison of expansion history of the Universe with the history of structure growth via gravitational instability: general relativity predicts a specific ...
We apply a type of background independent 'polymer' quantization to a free scalar field in a flat spacetime. Using semiclassical states, we find an effective wave equation that is both nonlinear and Lorentz invariance violating. We solve this equation perturbatively for several cases of physical interest, and show that polymer corrections to solutions of the ...
... Accession Number : ADA524082. Title : Thailand: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA485874. Title : Thailand: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA478323. Title : Thailand: Background and US Relations. Corporate Author : LIBRARY OF CONGRESS ...
... Accession Number : ADA461418. Title : Thailand: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA497706. Title : Syria: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA481373. Title : Syria: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA479316. Title : Syria: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA501391. Title : Sri Lanka: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA486249. Title : Sri Lanka: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA461415. Title : Sri Lanka: Background and US Relations. Descriptive Note : Congressional rept. ...
... Accession Number : ADA530235. Title : Senegal: Background and US Relations. Descriptive Note : Congressional rept. ...
CRS Report for Congress Prepared for Members and Committees of Congress Qatar: Background and US Relations ... 23 Appendix A. Qatar in Brief ...
... Accession Number : ADA520652. Title : Qatar: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486295. Title : Qatar: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA476731. Title : Qatar: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... ADA461401. Title : New Zealand: Background and Bilateral Relations with the United States. Descriptive Note : Congressional rept. ...
... Title : Nepal: Background and US Relations. ... Human rights advocates continue to be concerned about the human rights situation in Nepal. ...
... Accession Number : ADA525502. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA517308. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA490385. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA490378. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486002. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA480735. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA475158. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA475037. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA475031. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA475030. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA470007. Title : Libya: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA476951. Title : Ghana: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA469267. Title : Germany's Relations With Israel: Background and Implications for German Middle East Policy. ...
... Accession Number : ADA501061. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA497772. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486046. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486045. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486044. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA486043. Title : Egypt: Background and US Relations. Descriptive Note : Congressional rept. Corporate ...
... Accession Number : ADA501062. Title : Cambodia: Background and US Relations. Descriptive Note : Congressional rept. ...
... Title : Cambodia: Background and US Relations. ... US interests in Cambodia include human rights, foreign assistance, trade, and counter terrorism. ...
... Accession Number : ADA490095. Title : Argentina: Background and US Relations. Descriptive Note : Congressional rept. ...
... Title : A Study of Personal and Military Background Factors Related to Map Reading in the Marine Corps Reserve (Ground). ...
It is now generally accepted that the impulsive acceleration of a coronal mass ejection (CME) in the inner corona is closely correlated in time with the main energy release of the associated solar flare. In this paper, we examine in detail the post-impulsive-phase acceleration of a CME in the outer corona, which is the phase of evolution immediately ...
BackgroundA hallmark of the latter half of the 20th century is the widespread, rapid intensification of a variety of anthropogenically-driven environmental changes�a �Great Acceleration.� While there is evidence of a Great Acceleration in a variety of factors known to be linked to water quality degradation, ...
PubMed Central
... Title : Accelerated Tests of Relative Atmospheric-Corrosion Resistance of Low-Alloy Atmosphere-Resistant Steels,. Corporate Author : ...
The historical background of the field of particle accelerators is presented with a description of the conceptual and technical growth of each of the major types. First, the status of high-voltage technology before accelerators were conceived is described. This shows the technical knowledge available to the earliest generation of ...
The IFMIF 125 mA cw 40 MeV accelerators will set an intensity record. Minimization of particle loss along the accelerator is a top-level requirement and requires sophisticated design intimately relating the accelerated beam and the accelerator structure. ...
Consistency relations between growth of structure and expansion history observables exist for any physical explanation of cosmic acceleration, be it a cosmological constant, scalar field quintessence, or a general component of dark energy that is smooth relative to dark matter on small scales. The high-quality supernova sample ...
particles through the universe. Nucleons interact with the cosmic background radiation fields, losing energy acceleration, outline propagation of cosmic rays through the background radiation and the consequent electron and Bethe�Heitler pair pro� duction both on the microwave background, and synchrotron ...
E-print Network
at these energies, nucleons and fl�rays have attenuation lengths in the cosmic microwave background radiation (CMBR the discovery by Penzias and Wilson [11] of the cosmic microwave background radiation (CMBR), Greisen [12 if the acceleration occurs over long time scales. In the latter case it is the cosmic microwave ...
An accelerated particle generator adjustable over a wide energy range was developed. It consists of a first particle accelerator providing a high- energy accelerated particle beam, a device for deviating this beam positioned after this first accelerator and capable of effecting a 360 deg rotution about an ...
We consider generalizations of the entropic accelerating universe recently proposed in [D. A. Easson, P. H. Frampton, and G. F. Smoot, Phys. Lett. B 696, 273 (2011).PYLBAJ0370-269310.1016/j.physletb.2010.12.025] and [D. A. Easson, P. H. Frampton, and G. F. Smoot, arXiv:1003.1528.] and show that their background equations can be made equivalent to a model ...
The operation of Nuclear Power Plants and atmospheric tests of nuclear weapons performed in the past, together with production, transport and reprocessing of nuclear fuel, lead to the release into the environment of a wide range of radioactive nuclides, such as uranium, plutonium, fission and activation products. These nuclides are present in the environment at ultra trace levels. Their detection ...
The ion composition of fluxes of charged particles in interplanetary space with energies �0.03-10 MeV/nucleon are studied during quiet periods in the 23rd solar-activity cycle using data from the ACE spacecraft. Apart from the activity minimum, the Fe/O ratio during such periods corresponds to either the relative abundances of ions in particle fluxes ...
ABSTRACT: BACKGROUND: The purpose of this study was to investigate whether localized peripheral inflammation, such as osteoarthritis, contributes to neuroinflammation and neurodegenerative disease in vivo. METHOD: S We employed the inducible Col1-IL1betaXAT mouse model of osteoarthritis, in which induction of osteoarthritis in the knees and temporomandibular joints resulted in ...
Recently, there have been suggestions that the Type Ia supernova data can be explained using only general relativity and cold dark matter with no dark energy. In �Swiss cheese� models of the Universe, the standard Friedmann-Robertson-Walker picture is modified by the introduction of mass-compensating spherical inhomogeneities, typically described by the ...
The physical origin of inertial forces is shown to be a consequence of the local interaction of Dirac`s real covariant ether model with accelerated microobjects, considered as real extended particle-like solitons, piloted by surrounding sub-luminal real wave fields packets. Their explicit form results from the application of local inertial Lorentz transformations to the ...
Successful implementation of a beam-based alignment algorithm, tailored to different types of quadrupoles at RHIC, provides significant benefits to machine operations for heavy ions and polarized protons. This algorithm was used to calibrate beam position monitor centers relative to interaction region quadrupoles to maximize aperture. This approach was also used to determine ...
Photon Burst Mass Spectrometry is a relatively new and untried method which may complement and extend the impressive achievements of Resonance Ionization Mass Spectrometry and Accelerator Mass Spectrometry in the field of large dynamic range isotope analysis. Theoretical predictions indicate that measurements in the 10/sup /minus/11/ to 10/sup /minus/15/ ...
A possibility to improve the Tevatron beam halo scraping using a bent channeling crystal instead of a thin scattering primary collimator is studied. To evaluate the efficiency of the system, realistic simulations have been performed using the CATCH and STRUCT Monte Carlo codes. It is shown that the scraping efficiency can be increased and the accelerator-related ...
WAPT121 transgenic mice express T121, a trucation mutation of SV40 antigen that binds and inactivates all pRB-related proteins, under control of whey acidic protein (WAP) promoter. T121 expression was detected in the mammary gland (Simin et al., 2004). Transgenic females failed to nurse pups because of lactation defects. Multi-pregnant females developed mammary tumors at 11-15 ...
Cancer.gov
A magnetic-dipole vortex is generated in the behind of an ultraintense and ultrashort laser pulse in a near critical density plasma. The vortex is self-sustained by its magnetic field pressure which expels background electrons, and resulting sheath field accelerates electrons to drive high amplitude electric current inside the vortex. The electron energy ...
Luminosity-driven channeling extraction was observed for the first time in a 900 GeV study at the Fermilab Tevatron carried out in the 1995-1996 period. This experiment, Fermilab E853, demonstrated that useful TeV level beams can be extracted from a superconducting accelerator during high luminosity collider operations without unduly affecting the ...
Clouds of stray electrons are ubiquitous in particle accelerators and frequently limit the performance of storage rings. Earlier measurements of electron energy distribution and flux to the walls provided only a relative electron cloud density. We have measured electron accumulation using ions expelled by the beam. The ion energy distribution maps the ...
Clouds of stray electrons are ubiquitous in particle accelerators and frequently limit the performance of storage rings. Earlier measurements of electron energy distribution and flux to the walls provided only a relative electron-cloud density. We have measured electron accumulation using ions expelled by the beam. The ion energy distribution maps the ...
The strong equivalence principle is extended in application to averaged dynamical fields in cosmology to include the role of the average density in the determination of inertial frames. The resulting cosmological equivalence principle is applied to the problem of synchronization of clocks in the observed universe. Once density perturbations grow to give density contrasts of order 1 on scales of ...
In a plasma-based accelerator,(For a review see, E. Esarey et al., IEEE Trans. Plasma Sci. PS-24), 252 (1996). the accelerating gradient is very high E[V/m]~= 100n_e^1/2[cm-3], but the wavelength of the accelerating field is the plasma wavelength ?_p[cm]~= 3\\cdot 10^6 n_e-1/2[cm-3], which is relatively short, ...
Plasmas are attractive media for the next generation of compact particle accelerators because they can sustain electric fields larger than those in conventional accelerators by three orders of magnitude. However, until now, plasma-based accelerators have produced relatively poor quality electron beams even though ...
Protons in a microtarget embedded in an underdense high-mass plasma can be accelerated sequentially by the radiation pressure of a short circularly polarized laser pulse and the induced wake bubble field in the background plasma, which has been shown in detail by two-dimensional particle in cell simulations. It has been found that instead of using ...
Smooth pursuit (SP) eye movements are used to maintain the image of a moving object relatively stable on the fovea. Even when tracking a single target over a dark background, multiple areas including frontal eye fields (FEF), middle temporal (MT) and medial superior temporal (MST) cortex contribute to converting visual signals into initial commands for SP. ...
The IFMIF 125 mA cw 40 MeV accelerators will set an intensity record. Minimization of particle loss along the accelerator is a top-level requirement and requires sophisticated design intimately relating the accelerated beam and the accelerator structure. Such design technique, based on the ...
An electromagnetic accelerator is designed for accelerating an ionized gas plasma to extremely high velocities at high flow rates. In the accelerator, a moving, preferably accelerating, magnetic field accelerates a ring-shaped plasma mass from one end of a structure to the other end to ...
A fundamental theorem on particle acceleration is derived from the reciprocity principle of electromagnetism and a rigorous proof of the theorem is presented. The theorem establishes a relation between acceleration and radiation, which is particularly useful for insightful understanding of and practical calculation about the first ...
... INTERNATIONAL RELATIONS, GOVERNMENT(FOREIGN), TERRORISM, FOREIGN AID, ARABS, INTERNATIONAL POLITICS, POLICIES ...
... support. Descriptors : *INTERNATIONAL RELATIONS, UNITED STATES, YEMEN, FOREIGN AID, FOREIGN POLICY. Subject ...
Radioactive isotopes produced through cosmic muon spallation are a background for rare event detection in {nu} detectors, double-beta-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the ...
Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in nu detectors, double-beta-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the ...
Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in ? detectors, double-?-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the ...
... Descriptors : *BETATRONS, *PARTICLE ACCELERATORS, *PLASMAS( PHYSICS), CAPACITORS, DENSITY, ENERGY, EXPERIMENTAL DATA ...
Current activities of the program to accelerate specific applications of space related technology in
