Design of a CW high charge state heavy ion RFQ for SSC-LINAC

doi:10.1016/j.nima.2012.11.017

	Design of a CW high charge state heavy ion RFQ for SSC-LINAC
	He, Y 4; Liu, G 4; Lu, YR 4; Wang, Z 4; Xiao, C 4; Gao, SL 4; Yang, YQ 4; Zhu, K 4; Yan, XQ 4; Yuan, YJ 4
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2013
卷号	701 页码:186-193
关键词	RFQ accelerator High charge state Heavy ion Continuous wave
ISSN号	0168-9002
DOI	10.1016/j.nima.2012.11.017
英文摘要	The new linac injector SSC-LINAC has been proposed to replace the existing Separator Sector Cyclotron (SSC). This effort is to improve the beam efficiency of the Heavy Ion Research Facility of Lanzhou (HIRFL). As a key component of the linac, a continuous-wave (CW) mode high charge state heavy ion radio-frequency quadrupole (RFQ) accelerator has been designed. It accelerates ions with the ratio of mass to charge up to 7 from 3.728 keV/u to 143 keV/u. The requirements of CW mode operation and the transportation of intense beam have been considered as the greatest challenges. The design is based on U-238(34+) beams, whose current is 0.5 pmA (0.5 particle mili-ampere, which is the measured 17 emA electric current divided by charge state of heavy ions). It achieves the transmission efficiency of 94% with 2508.46 mm long vanes in simulation. To improve the transmission efficiency and quality of the beams, the phase advance has been taken into account to analyze the reasons of beam loss and emittance growth. Parametric resonance and beam mismatch have been carefully avoided by adjusting the structure parameters. The parameter-sensitivity of the design is checked by transportation simulations of various input beams. To verify the applicability of machining, the effects of different vane manufacturing methods on beam dynamics are presented in this paper. (C) 2012 Elsevier B.V. All rights reserved.
资助项目	NSFC[11079001] ; NSFC[10905003]
WOS关键词	FREQUENCY QUADRUPOLE ACCELERATOR ; DYNAMICS
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000313721400024
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/22721]
专题	近代物理研究所_直线加速器中心近代物理研究所_兰州重离子研究装置
通讯作者	Lu, YR (reprint author), Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.
作者单位	1.Yuan, Y. J. 2.Wang, Z. 3.Lu, Y. R. 4.[Liu, G. 5.Zhao, H. W.] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 6.Yang, Y. Q. 7.Xiao, C. 8.He, Y. 9.[Lu, Y. R. 10.Chen, J. E.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	He, Y,Liu, G,Lu, YR,et al. Design of a CW high charge state heavy ion RFQ for SSC-LINAC[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2013,701:186-193.
APA	He, Y.,Liu, G.,Lu, YR.,Wang, Z.,Xiao, C.,...&Lu, YR .(2013).Design of a CW high charge state heavy ion RFQ for SSC-LINAC.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,701,186-193.
MLA	He, Y,et al."Design of a CW high charge state heavy ion RFQ for SSC-LINAC".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 701(2013):186-193.