Dependence of the cross sections for Ir isotopes on the values of Q(gg) in the heavy ion collision

作者：Yang Wei Fan^*; Zhao Zhi Zheng; Yuan Shuang Gui; Xu Yan Bing; Lu Xi Ting

来源：Chinese Physics C, 2009, 33(S1): 196-198.

DOI：10.1088/1674-1137/33/s1/063

• iridium
• Au-197
• Multinucleon transfer reaction
• Q(gg)

Au-197 were irradiatled with 47 MeV/u C-12 ions. Iridium was produced via the multinucleon transfer reactions in bombardments of Au-197 with C-12, and was separated radiochemically from Au and the mixture of the reaction products. The gamma radioactivities of Ir isotope were measured by using a IIPGe detector. The production cross Sections of Ir isotopes were determined from activities of Ir isotopes at the end of bombardment and the other relative data. It has been found that the cross sections for neutron-rich isotopes of iridium show all exponential dependence on the values of Q(gg). Our experimental results also demonstrate lack of correlation between the cross sections and Q(gg) in the case of neutron-deficient isotopes of iridium. The fact can be explained from that neutron-rich isotopes of iridium were produced in the deep inelastic transfer reactions.

• 出版日期2009-3
• 单位中国科学院近代物理研究所; 北京大学