Experimental demonstration of neutron resonance measurement using laser-driven neutron source

Lan, Z.*; 余語 覚文*; Mirfayzi, S. R.*; 早川 岳人*; 小泉 光生 ; Wei, T.*; Shi, B.*; 石本 崇*; Golovin, D.*; 森 隆人*; 田邊 大貴*; 平松 優祐*; 中西 麻唯子*; 安部 勇輝*; 有川 安信*; 三間 圀興*; 藤岡 慎介*; 兒玉 了祐*

Lan, Z.*; Yogo, Akifumi*; Mirfayzi, S. R.*; Hayakawa, Takehito*; Koizumi, Mitsuo; Wei, T.*; Shi, B.*; Ishimoto, Takashi*; Golovin, D.*; Mori, Takato*; Tanabe, Daiki*; Hiramatsu, Yusuke*; Nakanishi, Maiko*; Abe, Yuki*; Arikawa, Yasunobu*; Mima, Kunioki*; Fujioka, Shinsuke*; Kodama, Ryosuke*

High penetration power of neutrons is potentially useful for realizing opaque object analysis in non-destructive way. Large-scale particle accelerators and nuclear reactors are mostly used for development of neutron analyzing method. A Laser-Driven Neutron Source (LDNS) has been proposed as a new approach of neutron generation for non-destructive analysis. Demonstration experiments on neutron resonance measurement ware performed at ILE, Osaka Univ., Japan. The Peta-watt laser LFEX was used to shoot a CD (deuterated plastic) foil target to produce accelerated charged deuterons. Neutrons are generated by nuclear reaction between a cylindrical beryllium and the accelerated deuteron, and then moderated by a high-density polyethylene (HDP). Neutrons of 120 eV were observed with a neutron detector at a 1.8 m using neutron resonance diagnosis technology. This report describes the results of the first experimental demonstration.