典型文献
Micro-size picosecond-duration fast neutron source driven by a laser-plasma wakefield electron accelerator
文献摘要：
A pulsed fast neutron source is critical for applications of fast neutron resonance radiography and fast neutron absorption spectroscopy.However,due to the large transversal source size(of the order of mm)and long pulse duration(of the order of ns)of traditional pulsed fast neutron sources,it is difficult to realize high-contrast neutron imaging with high spatial resolution and a fine absorption spectrum.Here,we experimentally present a micro-size ultra-short pulsed neutron source by a table-top laser-plasma wakefield electron accelerator driving a photofission reaction in a thin metal converter.A fast neutron source with source size of approximately 500 μm and duration of approximately 36 ps has been driven by a tens of MeV,collimated,micro-size electron beam via a hundred TW laser facility.This micro-size ultra-short pulsed neutron source has the potential to improve the energy resolution of a fast neutron absorption spectrum dozens of times to,for example,approximately 100 eV at 1.65 MeV,which could be of benefit for high-quality fast neutron imaging and deep understanding of the theoretical model of neutron physics.
文献关键词：
中图分类号：
作者姓名：
Yaojun Li;Jie Feng;Wenzhao Wang;Junhao Tan;Xulei Ge;Feng Liu;Wenchao Yan;Guoqiang Zhang;Changbo Fu;Liming Chen
作者机构：
Key Laboratory of Laser Plasma(MoE),School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai,China;IFSA Collaborative Innovation Center,Shanghai Jiao Tong University,Shanghai,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai,China;Key Laboratory of Nuclear Physics and Ion-beam Application(MoE),Institute of Modern Physics,Fudan University,Shanghai,China
文献出处：
引用格式：
[1]Yaojun Li;Jie Feng;Wenzhao Wang;Junhao Tan;Xulei Ge;Feng Liu;Wenchao Yan;Guoqiang Zhang;Changbo Fu;Liming Chen-.Micro-size picosecond-duration fast neutron source driven by a laser-plasma wakefield electron accelerator)[J].高功率激光科学与工程（英文版）,2022(05):57-64
A类：
photofission
B类：
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AB值：
0.475683
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