Isotope distributions in the reaction of /sup 238/U with /sup 238/U
Isotope distributions in the reaction of /sup 238/U with /sup 238/U
复制标题
DOI：
10.1103/physrevlett.41.469
复制
发表时间：
1978-08
影响因子：
8.6
通讯作者：
M. Schaedel;J. Kratz;H. Ahrens;W. Bruechle;G. Franz;H. Gaeggeler;I. Warnecke;G. Wirth;G. Herrmann;N. Trautmann;M. Weis
中科院分区：
文献类型：
--
作者：
M. Schaedel;J. Kratz;H. Ahrens;W. Bruechle;G. Franz;H. Gaeggeler;I. Warnecke;G. Wirth;G. Herrmann;N. Trautmann;M. Weis
放射化学测定截面σ（Z，A）被用来构建1785-MeV /sup 238/U离子与厚/sup 238/U靶反应的电荷和质量分布。碰撞核的裂变被发现占主导地位。对于幸存的类铀碎片的产率相比，Kr + U和Kr + U反应的增强被观察到。重锕系元素的形成与阻尼碰撞中宽激发能分布的低能尾有关。
Radiochemically determined cross sections sigma (Z, A) were used to construct charge and mass distributions for the reaction of 1785-MeV /sup 238/U ions with thick /sup 238/U targets. Fission of the colliding nuclei is found to dominate. For the surviving uraniumlike fragments an enhancement of yields compared to the Kr + U and Xe + U reactions is observed. The formation of heavy actinides is shown to be associated with the low-energy tails of the broad excitation energy distributions in damped collisions.