Formation cross sections of nuclei with (n,2n) reactions  

作　　者：ChenXue－Shi ZhouMu－Yao 等 

机构地区：[1]ShanghaiInstituteofNuclearResearch,theCihineseAcademyofSciences,Shanghai201800 [2]ShanghaiUniversity,Sha

出　　处：《Nuclear Science and Techniques》1997年第1期26-29,共4页核技术（英文）

摘　　要：Ｆｏｒｍａｔｉｏｎｃｒｏｓｓｅｃｔｉｏｎｓｏｆｎｕｃｌｅｉｗｉｔｈ（ｎ，２ｎ）ｒｅａｃｔｉｏｎｓＣｈｅｎＸｕｅＳｈｉ，ＸｉｅＫｕａｎＺｈｏｎｇ，ＺｈｏｕＳｈｅｎｇＭｏ，ＹａｎＱｉｎｇＱｕａｎ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅ...Neutron activation technique is used to measure the formation cross sections on even even target nuclei with 14.6 MeV (n, 2n) reactions. The absolute values are calculated by using an integrated pre equilibrium statistical model. The result gives a general good fit to the experimental data and shows the existence of shell effect on the cross sections. Problems related to the effect are discussed.

关 键 词：聚变-裂变反应堆 (n 2n)反应 截面公式 

分 类 号：O571.4[理学—粒子物理与原子核物理]