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The development and beam test of an RF chopper system for J-PARC
Wang S(王生); Fu SN(傅世年); Wang, S; Fu, SN; Kato, T
2005
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
卷号547期号:2-3页码:#REF!
通讯作者Wang, S (reprint author), Inst High Energy Phys, POB 918, Beijing 100049, Peoples R China.
文章类型Article
摘要The linac of the Japan Proton Accelerator Research Complex (J-PARC) is now under construction, It is a high-intensity linac with a peak H- current of 50 mA and it 1.25% duty factor. As it key component or the medium-energy beam-transport line of the linac, a chopper is necessary to obtain the required beam structure for the following 3-GeV rapid-cycling synchrotron, and also plays an important role in beam-loss control in such it high-intensity accelerator. Clean chopping requires a short rise time and it high deflecting field. An radio frequency deflector (RFD) was proposed as a chopper for the J-PARC linac. because of its merits of high deflecting field. compact structure ease to manufacture and both reliability and flexibility of the total chopper operation. An RF chopper, consisting of two RFDs has been developed. In a low-level RF test, the fundamental RF properties show good agreement with those of it simulation in the design. In a high-power test, the chopper works well without any discharge Under 36 kW peak driving power. In a test of the coupled RFD system, the longer rise time of the second RFD and the delay of the second RFD excitation were observed. A beam test of the RF chopper was also successfully performed up to it peak current of 25mA. The chopper system worked very stable during the beam test. and the sufficient separation between chopped and normal beam was obtained, with a short rise/fall time (10 ns) of the chopped beam, (c) 2005 Elsevier B.V. All rights reserved.
关键词J-PARC RF choppers frequency tuning rise time proton linac beam test
学科领域Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
DOI10.1016/j.nima.2005.03.144
收录类别SCI
WOS类目Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
WOS记录号WOS:000231001800008
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被引频次:5[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/311005/227524
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Wang S,Fu SN,Wang, S,et al. The development and beam test of an RF chopper system for J-PARC[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2005,547(2-3):#REF!.
APA 王生,傅世年,Wang, S,Fu, SN,&Kato, T.(2005).The development and beam test of an RF chopper system for J-PARC.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,547(2-3),#REF!.
MLA 王生,et al."The development and beam test of an RF chopper system for J-PARC".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 547.2-3(2005):#REF!.
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