Beam dynamics study of RFQ for CADS with a 3D space-charge-effect

The ADS（accelerator driven subcritical system） project was proposed by the Chinese Academy of Sciences.The initial proton beams delivered from an electron cyclotron resonance ion source can be effectively accelerated by 162.5 MHz 4.2 m long room temperature radio-frequency-quadrupoles（RFQ） operating...

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Bibliographic Details
Published in:Chinese physics C 2014-03, Vol.38 (3), p.78-83
Main Author: 李超 张智磊 齐新 徐显波 何源 杨磊
Format: Article
Language:English
Subjects:
Beams (structural)
Computer simulation
Dynamic tests
Dynamical systems
Electron cyclotron resonance
Fortran
Ion sources
Quadrupoles
RFQ
Three dimensional
加速器驱动次临界系统
数字技术
束流动力学
电子回旋共振离子源
空间电荷效应
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Summary:The ADS（accelerator driven subcritical system） project was proposed by the Chinese Academy of Sciences.The initial proton beams delivered from an electron cyclotron resonance ion source can be effectively accelerated by 162.5 MHz 4.2 m long room temperature radio-frequency-quadrupoles（RFQ） operating in CW mode.To test the feasibility of this physical design,a new Fortran code for RFQ beam dynamics study,which is space charge dominated,was developed.This program is based on Particle-In-Cell（PIC） technique in the time domain.Using the RFQ structure designed for the CADS project,the beam dynamics behavior is performed.The well-known simulation code TRACK is used for benchmarks.The results given by these two codes show good agreements.Numerical techniques as well as the results of beam dynamics studies are presented in this paper.
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/38/3/037005