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Los Alamos beam halo experiment [electronic resource] : comparing theory, simulation and experiment

Published
Washington, D.C. : United States. Dept. of Energy, 2002.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
5 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We compare macroparticle simulations with measurements from a proton beam-halo experiment in a 52-quadrupole periodic-focusing channel. Three different initial distributions with the same Courant-Snyder parameters and emittances, but different shapes, predict different beam profiles in the transport system. Input distributions with greater population in the tails produce larger rates of emittance growth, a result that is qualitatively consistent with the particle-core model of halo formation in mismatched beams. The simulations underestimate the growth rate of halo and emittance for mismatched beams. Better agreement between simulations and experiment may require an input distribution that represents more accurately the tails of the real input beam.
Report Numbers
E 1.99:la-ur-02-5086
la-ur-02-5086
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Note
Published through SciTech Connect.
01/01/2002.
"la-ur-02-5086"
Submitted to: Advanced Accelerator Concepts Workshop, Oxnard, CA, June 23-28, 2002.
Wangler, Thomas P.,; Qiang, J.
View MARC record | catkey: 14687780