Demonstration of laser-produced neutron diagnostic by radiative capture gamma-rays

被引：3
|
作者：
Zhang, Xiaopeng [1 ,2 ,3 ]
Wei, Wenqing [4 ,5 ]
Fu, Changbo [1 ,2 ,3 ]
Yuan, Xiaohui [4 ,5 ]
An, Honghai [6 ]
Deng, Yanqing [4 ,5 ]
Fang, Yuan [4 ,5 ]
Gao, Jian [4 ,5 ]
Ge, Xulei [4 ,5 ]
Guo, Bing [7 ]
He, Chuangye [7 ]
Hu, Peng [8 ]
Hua, Neng [9 ]
Jiang, Weiman [10 ]
Li, Liang [1 ,2 ,3 ]
Li, Mengting [8 ]
Li, Yifei [10 ]
Li, Yutong [5 ,10 ,11 ]
Liao, Guoqian [4 ,5 ]
Liu, Feng [4 ,5 ]
Liu, Longxiang [12 ]
Wang, Hongwei [12 ]
Yang, Pengqian [9 ]
Yang, Su [4 ,5 ]
Yang, Tao [8 ]
Zhang, Guoqiang [12 ]
Zhang, Yue [12 ]
Zhu, Baoqiang [9 ]
Xi, Xiaofeng
Zhu, Jianqiang [9 ]
Sheng, Zhengming [4 ,5 ,13 ]
Zhang, Jie [4 ,5 ]
机构：
[1] Shanghai Jiao Tong Univ, INPAC, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Laser Plasmas MoE, Shanghai 200240, Peoples R China
[5] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China
[6] China Acad Engn Phys, Shanghai Inst Laser Plasma, Shanghai 201800, Peoples R China
[7] China Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China
[8] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
[9] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[10] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China
[11] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[12] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[13] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 02期
基金：
中国国家自然科学基金;
关键词：
FUSION; DETECTOR; RADIOGRAPHY; DENSITY; TARGETS; PLASMA; YIELDS;
D O I：
10.1063/1.5019228
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report a new scenario of the time-of-flight technique in which fast neutrons and delayed gamma-ray signals were both recorded in a millisecond time window in harsh environments induced by high-intensity lasers. The delayed gamma signals, arriving far later than the original fast neutron and often being ignored previously, were identified to be the results of radiative captures of thermalized neutrons. The linear correlation between the gamma photon number and the fast neutron yield shows that these delayed gamma events can be employed for neutron diagnosis. This method can reduce the detecting efficiency dropping problem caused by prompt high-flux gamma radiation and provides a new way for neutron diagnosing in high-intensity laser-target interaction experiments. Published by AIP Publishing.
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页数：7
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