Double differential cross sections of light charged particle production for the n+^238U reaction  

作　　者：Hai-Rui Guo Yin-Lu Han Chong-Hai Cai 郭海瑞;韩银录;蔡崇海(Institute of Applied Physics and Computational Mathematics,Beijing 100094,China;China Institute of Atomic Energy,P.O.Box 275（41）,Beijing 102413,China;Department of Physics,Nankai University,Tianjin 300071,China)

机构地区：[1]Institute of Applied Physics and Computational Mathematics,Beijing 100094,China [2]China Institute of Atomic Energy,P.O.Box 275(41),Beijing 102413,China [3]Department of Physics,Nankai University,Tianjin 300071,China

出　　处：《Chinese Physics C》2018年第12期90-99,共10页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China-NSAF(U1630122);IAEA Coordinated Research Projects(CRPs)on Recommended Input Parameter Library(RIPL)for Fission Cross Section Calculations(20464);Science Challenge Project(TZ2018005)

摘　　要：Production of light complex particles from the n＋^238u reaction is analyzed with the exciton model including the improved Iwamoto-Harada pickup mechanism for the preequilibrium process. It is allowed that some of the nucleons forming the complex ejectile come from levels below the Fermi energy, and the intrinsic structure of the emitted particle is taken into account. The equilibrium-state emissions are also considered by using Hauser- Feshbach theory with the width fluctuation correction and the evaporation model angular distributions, energy spectra and double differential cross sections of neutron, alpha emissions for the n＋^238U reaction are consistently calculated and analyzed with the energy range En ≤150 MeV. ENDF-formatted nuclear data including information charged particles are obtained. Moreover, all cross sections, proton, deuteron, triton and nuclear theoretical models in about the production of lightProduction of light complex particles from the n＋^238u reaction is analyzed with the exciton model including the improved Iwamoto-Harada pickup mechanism for the preequilibrium process. It is allowed that some of the nucleons forming the complex ejectile come from levels below the Fermi energy, and the intrinsic structure of the emitted particle is taken into account. The equilibrium-state emissions are also considered by using Hauser- Feshbach theory with the width fluctuation correction and the evaporation model angular distributions, energy spectra and double differential cross sections of neutron, alpha emissions for the n＋^238U reaction are consistently calculated and analyzed with the energy range En ≤150 MeV. ENDF-formatted nuclear data including information charged particles are obtained. Moreover, all cross sections, proton, deuteron, triton and nuclear theoretical models in about the production of light

关 键 词：light charged particle production nuclear reaction theoretical model n＋^238U reaction nuclear data at En≤ 150 MeV 

分 类 号：O571[理学—粒子物理与原子核物理]