Preliminary design of a laser accelerator beam line

A compact laser plasma accelerator （CLAPA） an RPA-PSA mechanism or other acceleration mechanisms is being built at Peking University, which is based on The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy s...

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Published inChinese physics C Vol. 38; no. 11; pp. 107 - 110
Main Author 尚勇 朱昆 曹超 朱军高 陆元荣 郭之虞 陈佳洱 颜学庆
Format Journal Article
LanguageEnglish
Published 01.11.2014
Subjects
Accelerators
Beams (radiation)
Laser beams
Particle physics
Preliminary designs
Proton beams
Simulation
Spots
激光加速器
激光束
理论模拟
离子加速器
空间电荷场
能量扩散
脉冲电流
预先设计
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Summary:A compact laser plasma accelerator （CLAPA） an RPA-PSA mechanism or other acceleration mechanisms is being built at Peking University, which is based on The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong. According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1 50 MeV, energy spread of 0-±1% and current of 0-10^8 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 mA, and final spot radius of 9 mm is presented in this paper.
Bibliography:A compact laser plasma accelerator （CLAPA） an RPA-PSA mechanism or other acceleration mechanisms is being built at Peking University, which is based on The beam produced by this laser accelerator has the characteristics of short duration, high pulse current, large divergence angle, and wide energy spectrum. The beam cannot be produced by a normal ion source and accelerator. The space charge field in the initial is very strong. According to the beam parameters from preparatory experiments and theoretical simulations, a compact beam line is preliminarily designed. The beam line mainly consists of common transport elements to deliver proton beam with the energy of 1 50 MeV, energy spread of 0-±1% and current of 0-10^8 proton per pulse to satisfy the requirement of different experiments. The simulation result of a 15 MeV proton beam with an energy spread of ±1%, current of 400 mA, and final spot radius of 9 mm is presented in this paper.
11-5641/O4
laser plasma accelerator, beam line, common transport elements
SHANG Yong, ZHU Kun, CAO Chao, ZHU Jun-Gao, LU Yuan-Rong, GUO Zhi-Yu, CHEN Jia-Er, YAN Xue-Qing （State Key Laboratory of Nuclear Physics and Technology ＆ Key Lab of High Energy Density Physics Simulation, CAPT, Peking University, Beijing 100871, China）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/38/11/117011