Beam halo experiment at IHEP

PENG Jun; HUANG Tao; LIU Hua-Chang; JIANG Hong-Ping; LI Peng; LI Fang; LI Jian; LIU Mei-Fei; MU Zhen-Cheng; MENG Cai; MENG Ming; OUYANG Hua-Fu; RONG Lin-Yan; TIAN Jian-Min; WANG Biao; WANG Bo; XU Tao-Guang; XU Xin-An; YAO Yuan; XIN Wen-Qu; ZHAO Fu-Xiang; ZENG Lei; ZHOU Wen-Zhong

doi:10.1088/1674-1137/37/3/037002

Chinese Physics C> 2013, Vol. 37> Issue(3) : 037002 DOI: 10.1088/1674-1137/37/3/037002

Beam halo experiment at IHEP

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Abstract：
Space-charge forces acting in mismatched beams have been identified as a major cause of beam halo. In this paper, we describe the beam halo experimental results in a FODO beam line at IHEP. With this beam transport line, experiments are carried out to compare the measured data with the multi-particle simulations and to study the formation of a beam halo. The maximum measured amplitudes of the matched and mismatched beam profiles agree well with simulations. Details of the experiment are presented.

References

[1]

Reiser M. Theory and Design of Charged Particle Beams. New York: John Wiley Sons, 1994[2] Wangler T P, Crandall K R, Ryne R et al. Phys. Rev. ST Accel. Beams, 1998, 1: 084201[3] QIANG J, Colestock P L, Gilpatrick D et al. Phys. Rev. ST Accel. Beams, 2002, 5: 124201[4] Colestock P L, Wangler T, Allen C K. The Beam Halo Experiment at LEDA. Proc. of the XX International Linac Conference. Monterey, California, 2000. 806-808[5] RUAN Y F. The Study of the Beam Instruments for CSNS Linac (Ph.D. Thesis). Beijing: Institute of High Energy Physics, CAS, 2010(in Chinese)[6] GUAN X L, LUO Z H, FU S N. Chinese Journal of Nuclear Science and Engineering, 2003, 23(1): 73-78[7] Harunori T. PARMILA. LA-UR-98-4478, 1998, Revised July 26, 2005[8] Wangler T P, Allen C K, Chan K C D et al. Experimental Study of Proton-beam Halo Induced by Beam Mismatch in LEDA. Proceedings of the 2001 PAC. Chicago, 2001. 2923-2925

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PENG Jun, HUANG Tao, LIU Hua-Chang, JIANG Hong-Ping, LI Peng, LI Fang, LI Jian, LIU Mei-Fei, MU Zhen-Cheng, MENG Cai, MENG Ming, OUYANG Hua-Fu, RONG Lin-Yan, TIAN Jian-Min, WANG Biao, WANG Bo, XU Tao-Guang, XU Xin-An, YAO Yuan, XIN Wen-Qu, ZHAO Fu-Xiang, ZENG Lei and ZHOU Wen-Zhong. Beam halo experiment at IHEP[J]. Chinese Physics C, 2013, 37(3): 037002. doi: 10.1088/1674-1137/37/3/037002

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Received: 2012-04-25
Revised: 1900-01-01

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