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完成了 1 9F + 93Nb重离子耗散碰撞激发函数的两次独立测量 .束流的入射能量为 1 0 0— 1 0 8MeV ,步长 2 50keV .两次测量的宏观条件几乎完全一样 ,惟一的差别是使用了厚度分别为 70和 71 μg cm2 的两块 93Nb同位素靶 .实验结果表明 :( 1 )两次测量所得到的耗散反应产物激发函数的涨落具有不可平滑的结构 ;( 2 )这种不平滑的涨落截面有不重复的迹象 .着重从实验的角度对这一结果进行了讨论 .
Completed two independent measurements of the 129F + 93Nb heavy ion dissociation collision excitation function.The incident energy of the beam is 100 ~ 1 0 8MeV with a step length of 50 keV.The macroscopic conditions of the two measurements are almost the same, the only The difference is the use of two 93Nb isotope targets with thicknesses of 70 and 71 μg cm2, respectively. The experimental results show that: (1) the fluctuations of the excitation function of the dissipative reaction products obtained by the two measurements have an unsmooth structure; (2) There are no signs of repetition of this non-smooth fluctuation section, and the results are discussed emphatically from the experimental point of view.