Distribution transformation by using step-like nonlinear magnets
Tang JY(唐靖宇); Tang, JY; Li, HH; An, SZ; Maier, R
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
2004
卷号532期号:3页码:538-547
关键词uniform beam distribution distribution transformation step-like nonlinear magnets
学科分类Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2004.05.124
通讯作者Chinese Acad Sci, Inst Modern Phys, Beijing 100864, Peoples R China ; Forschungszentrum Julich, Julich, Germany
文章类型Article
英文摘要The uniform distribution of the beam on target is required in some high power beam applications to prolong the target lifetime or to improve the beam utilization. In this paper, a new method is proposed to transform irregular beam distributions in phase space into other kinds of distributions such as parabolic and fourth power in the transverse plane on target by using special nonlinear magnets. The nonlinear magnets can be designed similar to a dipole magnet, in which the emphasis is on the fringe field. The method is especially useful when dealing with beams with large emittance or/and with, dense core and sparse halo. The simulations show that the peak current density in the defined irradiation footprint can be reduced significantly while avoiding cutting off important beam halo due to high beam power. The application of the method to a high beam power accelerator (the ESS project) is also presented, where the peak current density at the target is reduced by a factor of about three. The method of using standard multipole magnets is also discussed, and an application to obtain the fourth power distribution is presented. (C) 2004 Elsevier B.V. All rights reserved.
类目[WOS]Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
研究领域[WOS]Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy
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语种英语
WOS记录号WOS:000224657700003
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237873
专题中国科学院高能物理研究所_加速器中心_期刊论文
作者单位中国科学院高能物理研究所
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Tang JY,Tang, JY,Li, HH,et al. Distribution transformation by using step-like nonlinear magnets[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2004,532(3):538-547.
APA 唐靖宇,Tang, JY,Li, HH,An, SZ,&Maier, R.(2004).Distribution transformation by using step-like nonlinear magnets.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,532(3),538-547.
MLA 唐靖宇,et al."Distribution transformation by using step-like nonlinear magnets".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 532.3(2004):538-547.
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