中国物理C,
2010, 34(11): 1749-1753.
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1.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
2.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
3.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
4.Los Alamos National Laboratory,Los Alamos,NM,87545,USA
5.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
6.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;The School of Nuclear Science and Technology Lanzhou University,Lanzhou 730000,China
7.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
8.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
9.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
10.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
11.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
12.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
基金项目:
National Natural Science Foundation of China(10635090)
A Particle-in-cell scheme of the RFQ in the SSC-Linac
XIAO Chen
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, HE Yuan
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, LU Yuan-Rong
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, Yuri Batygin
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, YIN Ling
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, WANG Zhi-Jun
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, YUAN You-Jin
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, LIU Yong
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, CHANG Wei
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, DU Xiao-Nan
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, WANG Zhi
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, XIA Jia-Wen
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1.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
2.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
3.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
4.Los Alamos National Laboratory,Los Alamos,NM,87545,USA
5.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
6.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;The School of Nuclear Science and Technology Lanzhou University,Lanzhou 730000,China
7.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
8.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
9.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
10.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
11.Key Laboratory of Heavy Ion Physics Ministry of Education,Beijing 100049,China
12.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China
Keywords：
RFQ
A 52 MHz Radio Frequency Quadrupole(RFQ)linear accelerator(linac)is designed to serve as an initial structure for the SSC-Linac system(injector into Separated Sector Cyclotron).The designed injection and output energy are 3.5 keV/u and 143 keV/u,respectively.The beam dynamics in this RFQ have been studied using a three-dimensional Particle-In-Cell(PIC)code BEAMPATH.Simulation results show that this RFQ structure is characterized by stable values of beam transmission efficiency(at least 95%)for both zerocurrent mode and the space charge dominated regime.The beam accelerated in the RFQ has good quality in both transverse and longitudinal directions,and could easily be accepted by Drift Tube Linac(DTL).The effect of the vane error and that of the space charge on the beam parameters have been studied as well to define the engineering tolerance for RFQ vane machining and alignment.
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