Preliminary design of a laser accelerator beam line

SHANG Yong; ZHU Kun; CAO Chao; ZHU Jun-Gao; LU Yuan-Rong; GUO Zhi-Yu; CHEN Jia-Er; YAN Xue-Qing

doi:10.1088/1674-1137/38/11/117011

Chinese Physics C> 2014, Vol. 38> Issue(11) : 117011 DOI: 10.1088/1674-1137/38/11/117011

Preliminary design of a laser accelerator beam line

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A compact laser plasma accelerator (CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. 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 0-10⁸ 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.

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SHANG Yong, ZHU Kun, CAO Chao, ZHU Jun-Gao, LU Yuan-Rong, GUO Zhi-Yu, CHEN Jia-Er and YAN Xue-Qing. Preliminary design of a laser accelerator beam line[J]. Chinese Physics C, 2014, 38(11): 117011. doi: 10.1088/1674-1137/38/11/117011

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Received: 2013-12-02
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary design of a laser accelerator beam line

Corresponding author: ZHU Kun,

Corresponding author: YAN Xue-Qing,

Received Date: 2013-12-02

Accepted Date: 1900-01-01

Available Online: 2014-11-05

Abstract: A compact laser plasma accelerator (CLAPA) is being built at Peking University, which is based on an RPA-PSA mechanism or other acceleration mechanisms. 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 0-10⁸ 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.

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Preliminary design of a laser accelerator beam line

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