Prospect of ultrahigh-resolution fast neutron absorption spectroscopy based on a laser plasma electron accelerator

Wen-Zhao Wang; Jie Feng; Xiao-Peng Zhang; Yao-Jun Li; Wei-Jun Zhou; Wen-Chao Yan; Guo-Qiang Zhang; Chang-Bo Fu; Li-Ming Chen

doi:10.1017/hpl.2023.92

High Power Laser Science and Engineering (Jan 2024)

Prospect of ultrahigh-resolution fast neutron absorption spectroscopy based on a laser plasma electron accelerator

Wen-Zhao Wang,
Jie Feng,
Xiao-Peng Zhang,
Yao-Jun Li,
Wei-Jun Zhou,
Wen-Chao Yan,
Guo-Qiang Zhang,
Chang-Bo Fu,
Li-Ming Chen

Affiliations

Wen-Zhao Wang: ORCiD; 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
Jie Feng: ORCiD; 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
Xiao-Peng Zhang: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
Yao-Jun Li: ORCiD; 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
Wei-Jun Zhou: ORCiD; 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
Wen-Chao Yan: ORCiD; 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
Guo-Qiang Zhang: Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
Chang-Bo Fu: ORCiD; Key Laboratory of Nuclear Physics and Ion-beam Application (MoE), Institute of Modern Physics, Fudan University, Shanghai, China
Li-Ming Chen: ORCiD; 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

DOI: https://doi.org/10.1017/hpl.2023.92
Journal volume & issue: Vol. 12

Abstract

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Fast neutron absorption spectroscopy is widely used in the study of nuclear structure and element analysis. However, due to the traditional neutron source pulse duration being of the order of nanoseconds, it is difficult to obtain a high-resolution absorption spectrum. Thus, we present a method of ultrahigh energy-resolution absorption spectroscopy via a high repetition rate, picosecond duration pulsed neutron source driven by a terawatt laser. The technology of single neutron count is used, which results in easily distinguishing the width of approximately 20 keV at 2 MeV and an asymmetric shape of the neutron absorption peak. The absorption spectroscopy based on a laser neutron source has one order of magnitude higher energy-resolution power than the state-of-the-art traditional neutron sources, which could be of benefit for precisely measuring nuclear structure data.

Published in High Power Laser Science and Engineering

ISSN: 2095-4719 (Print); 2052-3289 (Online)
Publisher: Cambridge University Press
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://www.cambridge.org/core/journals/high-power-laser-science-and-engineering

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