Study for an EP instability in the joint project of KEK and JAERI

被引:0
|
作者
Toyama, T [1 ]
Irie, Y [1 ]
Kato, S [1 ]
Ohmi, K [1 ]
Ohmori, C [1 ]
Satoh, K [1 ]
Uota, M [1 ]
Hayashi, N [1 ]
机构
[1] KEK, Tsukuba, Ibaraki 3050801, Japan
关键词
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中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
An e-p instability has been observed in some proton rings. This instability, which causes beam loss, limits the performance of the ring. The instability may be serious for 3 GeV and 50 GeV proton rings in JKJ. We have studied the e-p instability in several high-intensity proton rings: JKJ, PSR, ISIS and AGS. This work informs JKJ whether we have to take measures to cure the instability. A TiN coating on the chamber surface is one of remedies. Results of SEY measurements performed at KEK are discussed. The observation of electron cloud candidates at the KEK 12 GeV PS Main Ring is also presented.
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页码:155 / 162
页数:8
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