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On analog simulation of ionization cooling of muons

Description: Analog simulation, proposed here as an alternative approach for the study of ionization cooling of muons, is a scaled cooling experiment, using protons instead of muons as simulation particles. It is intended to be an effective and flexible, quick and inexpensive experiment for the understanding and validation of unprecedentedly complicated cooling physics, for the demonstration and optimization of various elaborated techniques for beam manipulation in 6D phase space. It can be done and perhaps… more
Date: June 18, 2001
Creator: Xie, Ming
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Partner: UNT Libraries Government Documents Department
open access

The next linear collider damping ring lattices

Description: We report on the lattice design of the Next Linear Collider (NLC) damping rings. The damping rings are required to provide low emittance electron and positron bunch trains to the NLC linacs, at a rate of 120 Hz. We present an optical design, based on a theoretical minimum emittance (TME) lattice, to produce the required normalized extracted beam emittances gex = 3 mm-mrad and gey = 0.02 mm mrad. An assessment of dynamic aperture and non-linear effects is given. The positron pre-damping ring, re… more
Date: June 20, 2001
Creator: Wolski, Andrzej & Corlett, John N.
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Partner: UNT Libraries Government Documents Department
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Magnet R&D for future colliders

Description: High-energy colliders complementing and expanding the physics reach of LHC are presently under study in the United States, Europe and Japan. The magnet system is a major cost driver for hadron colliders at the energy frontier, and critical to the successful operation of muon colliders. Under most scenarios, magnet design as well as vacuum and cryogenic systems are complicated by high radiation loads. Magnet R&D programs are underway worldwide to take advantage of new developments in superco… more
Date: June 14, 2001
Creator: Sabbi, Gian Luca
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Partner: UNT Libraries Government Documents Department
open access

Generation of attosecond electron bunches

Description: Ultra-fast science is an important new research frontier that is driving the development of novel sources for generation of extremely short x-ray and electron pulses. Recent advances in femtosecond lasers have stimulated development of femtosecond x-ray sources that allow the study of matter at the time scale shorter than period of oscillations of atoms in molecules, {approx} 100 fs. The next breakthrough would be a source of electron pulses comparable with atomic periods {omega}{sup -1} {appro… more
Date: June 18, 2001
Creator: Zholents, Alexander A.; Zolotorev, Max S. & Wan, Weishi
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Partner: UNT Libraries Government Documents Department
open access

Progress in heavy ion driven inertial fusion energy: From scaledexperiments to the integrated research experiment

Description: The promise of inertial fusion energy driven by heavy ion beams requires the development of accelerators that produce ion currents ({approx}100s Amperesheam) and ion energies ({approx}1-10 GeV) that have not been achieved simultaneously in any existing accelerator. The high currents imply high generalized perveances, large tune depressions. and high space charge potentials of the beam center relative to the beam pipe. Many of the scientific issues associated with ion beams of high perveance and… more
Date: June 22, 2001
Creator: Barnard, J. J.; Ahle, L. E.; Baca, D.; Bangerter, R. O.; Bieniosek, F. M.; Celata, C. M. et al.
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Partner: UNT Libraries Government Documents Department
open access

Mechanical design of the SNS MEBT

Description: The Lawrence Berkeley National Laboratory (LBNL) is presently designing and building the 2.5 MeV front end for the Spallation Neutron Source (SNS). The front end includes a medium-energy beam transport (MEBT) that carries the 2.5 MeV, 38 mA peak current, H{sup -} beam from the radio frequency quadrupole (RFQ) to the drift tube linac (DTL) through a series of 14 electromagnetic quadrupoles, four rebuncher cavities, and a fast traveling wave chopping system. The beamline contains numerous diagnos… more
Date: June 11, 2001
Creator: Oshatz, D.; DeMello, A.; Doolittle, L.; Luft, P.; Staples, J. & Zachoszcz, A.
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Partner: UNT Libraries Government Documents Department
open access

Radio-isotope production using laser Wakefield accelerators

Description: A 10 Hz, 10 TW solid state laser system has been used to produce electron beams suitable for radio-isotope production. The laser beam was focused using a 30 cm focal length f/6 off-axis parabola on a gas plume produced by a high pressure pulsed gas jet. Electrons were trapped and accelerated by high gradient wakefields excited in the ionized gas through the self-modulated laser wakefield instability. The electron beam was measured to contain excesses of 5 nC/bunch. A composite Pb/Cu target was … more
Date: July 27, 2001
Creator: Leemans, W. P.; Rodgers, D.; Catravas, P. E.; Geddes, C. G. R.; Fubiani, G.; Toth, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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