22MeV中子诱发^(235)U裂变的质量分布  

MASS DISTRIBUTION IN 22 MeV NEUTRON-INDUCED FISSION OF ^(235)U

作　　者：冯晶[1] 刘永辉[1] 杨毅[1] 鲍杰[1] 李泽[2] 祁步嘉[1] 周祖英[1] 唐洪庆[1] 阮锡超[1] 崔安智[2] 孙宏清[2] 张生栋[2] 郭景儒[2] 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413 [2]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2002年第2期117-121,共5页Journal of Nuclear and Radiochemistry

摘　　要：用γ射线能谱法测定了 2 2MeV中子诱发2 3 5U裂变产额。裂变率用双裂变室测定 ,得到了 2The chain yields of 29 product nuclides are determined for the fission of 235 U induced by 22 MeV neutrons. Fission rate is monitored with a double fission chamber. Fission product activities are measured by HPGe γ ray spectrometry. Time of flight technique is used to measure the neutron spectrum in order to estimate fission events induced by break up neutrons and scattering neutrons. A mass distribution curve is obtained after correction for background neutrons.

关 键 词：中子诱发 裂变产额 质量分布 Γ能谱法 铀235 裂变率 

分 类 号：O614.62[理学—无机化学] O571.44[理学—化学]