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

LI Chao; ZHANG Zhi-Lei; QI Xin; XU Xian-Bo; HE Yuan; YANG Lei

doi:10.1088/1674-1137/38/3/037005

Chinese Physics C> 2014, Vol. 38> Issue(3) : 037005 DOI: 10.1088/1674-1137/38/3/037005

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

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Abstract：
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.

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LI Chao, ZHANG Zhi-Lei, QI Xin, XU Xian-Bo, HE Yuan and YANG Lei. Beam dynamics study of RFQ for CADS with a 3D space-charge-effect[J]. Chinese Physics C, 2014, 38(3): 037005. doi: 10.1088/1674-1137/38/3/037005

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Received: 2013-06-08
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: HE Yuan,

Corresponding author: YANG Lei,

Received Date: 2013-06-08
Accepted Date: 1900-01-01
Available Online: 2014-03-05

Abstract: 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.