A simple simulation of electron-proton instability
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
A computer program has been implemented for simulating the electron-proton instability of a partially neutralized long proton bunch. The simulation is based on a theoretical model that considers the motions of the proton-beam centroid and macro-particles representing electrons as well as the contribution of secondary emission of electrons due to impingement of particles on the beam pipe. Preliminary results from simulating the e-p instability in the PSR are consistent with earlier studies using the centroid model and qualitatively agree well with experimental observations. It is found that enhancement of the instability due to the electron multiplication occurs only when oscillation of the proton beam has grown to large amplitude. This simulation program can be also used to find the beam-intensity threshold for multipactoring.
- OSTI ID:
- 21207646
- Journal Information:
- AIP Conference Proceedings, Vol. 496, Issue 1; Conference: Workshop on instabilities of high intensity hadron beams in rings, Upton, NY (United States), 28 Jun - 1 Jul 1999; Other Information: DOI: 10.1063/1.1301895; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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