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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

引用

Chinese Physics C 2020年第1期44卷 58-85页

作者：白怀勇樊瑞睿江浩雨崔增琪胡益伟张国辉陈振鹏蒋伟易晗唐靖宇周良安琪鲍杰曹平陈琪萍陈永浩程品晶封常青顾旻皓郭凤琴韩长材韩子杰贺国珠何泳成何越峰黄翰雄黄蔚玲黄锡汝季筱路吉旭阳敬罕涛康玲康明涛李波李论李强李晓李洋李样刘荣刘树彬刘星言栾广源马应林宁常军齐斌斌任杰阮锡超宋朝晖孙虹孙晓阳孙志嘉谭志新唐洪庆王鹏程王琦王涛峰王艳凤王朝晖王征文杰温中伟吴青彪吴晓光吴煊解立坤羊奕伟于莉余滔于永积张旌张林浩张利英张清民张奇玮张显鹏张玉亮张志永赵映潭周祖英朱丹阳朱科军朱鹏 State Key Laboratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsSchool of PhysicsPeking UniversityBeijing 100871China Sate Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Dongguan Neutron Science Center Dongguan 523803China Physics Department Tsinghua UniversityBeijing 100084China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China University of South China Hengyang 421001China Northwest Institute of Nuclear Technology Xi’an 710024China Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China Beihang University Beijing 100083China Xi’an Jiaotong University Xi’an 710049China

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.

关键词： ~6Li(n,t)~4He reaction differential cross-section angle-integrated cross-section LPDA

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