Measurement of the differential cross sections and angle-integrated cross sections of the ~6Li(n,t)~4 He reaction from 1.0 eV to 3.0 MeV at the CSNS Back-n white neutron source
Measurement of the differential cross sections and angle-integrated cross sections of the ~6Li(n,t)~4 He reaction from 1.0 eV to 3.0 MeV at the CSNS Back-n white neutron source作者机构：State Key Laboratory of Nuclear Physics and TechnologyInstitute of Heavy Ion PhysicsSchool of PhysicsPeking UniversityBeijing 100871China Sate Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China Dongguan Neutron Science CenterDongguan 523803China Physics DepartmentTsinghua UniversityBeijing 100084China Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei 230026China Key Laboratory of Nuclear DataChina Institute of Atomic EnergyBeijing 102413China Institute of Nuclear Physics and ChemistryChina Academy of Engineering PhysicsMianyang 621900China University of South ChinaHengyang 421001China Northwest Institute of Nuclear TechnologyXi’an 710024China Department of Engineering and Applied PhysicsUniversity of Science and Technology of ChinaHefei 230026China Beihang UniversityBeijing 100083China Xi’an Jiaotong UniversityXi’an 710049China
出 版 物：《Chinese Physics C》 (中国物理C（英文版）)
年 卷 期：2020年第44卷第1期
页 面：58-85页
核心收录：
学科分类：0709[理学-地质学] 08[工学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学]
基 金：Supported by National Key R&D Program of China(2016YFA0401604) National Natural Science Foundation of China(11775006) Science and Technology on Nuclear Data Laboratory and China Nuclear Data Center
主 题：~6Li(n,t)~4He reaction differential cross-section angle-integrated cross-section LPDA
摘 要：The^6 Li(n,t)~4 He reaction was measured as the first experiment involving neutron-induced charged particle emission reactions at the CSNS(China Spallation Neutron Source)Back-n white neutron *** differential cross-sections of the^6 Li(n,t)~4 He reaction at 15 detection angles ranging from 19.2°to 160.8°are obtained from 1.0 eV to 3.0 MeV at 80 neutron energy points;for 50 energy points below 0.1 MeV they are reported for the first *** results indicate that the anisotropy of the emitted tritium is noticeable above E_n=100 *** angle-integrated cross-sections are also *** present differential cross-sections agree in general with the previous evaluations,but there are some differences in the *** importantly,the present results indicate that the cross-sections of the^6 Li(n,t)~4 He reaction might be overestimated by most evaluations in the 0.5-3.0 MeV region,although they are recommended as standards below 1.0 MeV.
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