Ultrafast multi-MeV gamma-ray beam produced by laser-accelerated electrons

被引：13

作者：

Li, Shun ^{[1
,2
,3
]}

Shen, Baifei ^{[1
,3
,4
]}

Xu, Jiancai ^{[1
]}

Xu, Tongjun ^{[1
]}

Yu, Yong ^{[1
]}

Li, Jinfeng ^{[1
]}

Lu, Xiaoming ^{[1
]}

Wang, Cheng ^{[1
]}

Wang, Xinliang ^{[1
]}

Liang, Xiaoyan ^{[1
]}

Leng, Yuxin ^{[1
]}

Li, Ruxin ^{[1
]}

Xu, Zhizhan ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China

[4] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China

来源：

PHYSICS OF PLASMAS | 2017年 / 24卷 / 09期

基金：

中国国家自然科学基金;

关键词：

PLASMA; DRIVEN;

D O I：

10.1063/1.4996020

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Ultrafast multi-MeV high-flux gamma-ray beams have been experimentally produced via bremsstrahlung radiation of laser-accelerated energetic electrons through millimeter-thick copper targets. By optimizing the electron bunches to the charge of 10 nC in a clustering argon gas target, the obtained gamma-ray beam significantly increases to 10(10) photons per shot. The gamma-ray beam spectrum has been measured using a differential filtering detector and has a broad spectrum up to 15 MeV, which is approximately consistent with the Geant4 simulation. The generated high-flux high-energy gamma-ray beams are promising sources for photonuclear reaction, non-destructive inspection and clinical applications. Published by AIP Publishing.

引用

页数：5

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