DocumentCode
345468
Title
Coherent mode of a high intensity beam in a synchrotron
Author
Mechida, S. ; Uesugi, T. ; Ikegami, M.
Author_Institution
KEK-Tanashi, Tokyo, Japan
Volume
1
fYear
1999
fDate
1999
Firstpage
62
Abstract
As one of major sources which cause emittance growth and beam loss in high intensity hadron synchrotrons, we have investigated coherent mode oscillations in a beam. Using Sacherer´s (1968) envelope equations, mode frequencies of a bunched beam are derived. Multi-particle simulation shows that emittance growth occurs when the oscillation frequency of a coherent mode hits a resonance. The present status of a beam experiment at HIMAC is also mentioned, which is expected to show the direct observation of a resonance crossing of a coherent mode and beam loss
Keywords
particle beam bunching; particle beam diagnostics; particle beam stability; synchrotrons; HIMAC; beam loss; coherent mode oscillations; emittance growth; envelope equations; high intensity beam; mode frequencies; oscillation frequency; resonance crossing; synchrotron; Electronic switching systems; Frequency; Integral equations; Linear accelerators; Linear particle accelerator; Particle accelerators; Particle beams; Resonance; Stability; Synchrotrons;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location
New York, NY
Print_ISBN
0-7803-5573-3
Type
conf
DOI
10.1109/PAC.1999.795625
Filename
795625
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