Preliminary design and simulation of a 162.5 MHz high-intensity proton RFQ for an accelerator driven system

A new procedure for the design and simulation of a Radio Frequency Quadrupole （RFQ） accelerator has been developed at the Argonne National Laboratory. This procedure is integrated with the beam dynamics design code DESRFQ and the simulation code TRACK, which are based on three-dimensional field calc...

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Published inChinese physics C Vol. 35; no. 11; pp. 1053 - 1058
Main Author 肖陈 何源 刘勇 原有进 王志军 贺守波 徐孟鑫 李超 岳伟明 常玮 赵红卫 夏佳文
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.11.2011
Subjects
Accelerators
Beams (radiation)
Design engineering
Dynamical systems
Dynamics
Emittance
Proton beams
Simulation
加速器驱动系统
动力学模拟
动力学设计
咨询
均方根发射度
质子束
超导直线加速器
高强度
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Summary:A new procedure for the design and simulation of a Radio Frequency Quadrupole （RFQ） accelerator has been developed at the Argonne National Laboratory. This procedure is integrated with the beam dynamics design code DESRFQ and the simulation code TRACK, which are based on three-dimensional field calculations and the particle-in-cell mode beam dynamics simulations. This procedure has been applied to the development of a 162.5 MHz CW RFQ which is capable of delivering a 10 mA proton beam for the Accelerator Driven System （ADS） of the CAS. The simulation results show that this RFQ structure is characterized by the stable values of the beam acceleration efficiency for both the zero current beam and space charge dominated beam. For an average beam current of 10 mA, there is no transverse rms emittance growth, the longitudinal rms emittance at the exit of RFQ is low enough and there is no halo formation. The beam accelerated in the RFQ could be accepted easily and smoothly by the following super-conducting linear accelerator.
Bibliography:11-5641/O4
XIAO Chen 1,2;1） HE Yuan 1 LIU Yong 1 YUAN You-Jin 1 WANG Zhi-Jun 1,2,3 HE Shou-Bo 1,2 XU Meng-Xin 1,2 LI Chao 1,2 YUE Wei-Ming 1 CHANG Wei 1,2 ZHAO Hong-Wei 1 XIA Jia-Wen 1 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
RFQ; DESRFQ; TRACK; ADS; space charge effect
A new procedure for the design and simulation of a Radio Frequency Quadrupole （RFQ） accelerator has been developed at the Argonne National Laboratory. This procedure is integrated with the beam dynamics design code DESRFQ and the simulation code TRACK, which are based on three-dimensional field calculations and the particle-in-cell mode beam dynamics simulations. This procedure has been applied to the development of a 162.5 MHz CW RFQ which is capable of delivering a 10 mA proton beam for the Accelerator Driven System （ADS） of the CAS. The simulation results show that this RFQ structure is characterized by the stable values of the beam acceleration efficiency for both the zero current beam and space charge dominated beam. For an average beam current of 10 mA, there is no transverse rms emittance growth, the longitudinal rms emittance at the exit of RFQ is low enough and there is no halo formation. The beam accelerated in the RFQ could be accepted easily and smoothly by the following super-conducting linear accelerator.
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1674-1137
0254-3052
2058-6132
DOI:10.1088/1674-1137/35/11/014