论文部分内容阅读
在5°—140°范围内测量了30MeV／u40Ar束流轰击不同靶核（58Ni、64Ni、115In）时出射的中等质量碎片的元素分布．在20°—80°之间，观察到了原子序数大于弹核原子库数的出射碎片（Z＝3—24），发现中等质量碎片的微分截面在其原子库数从小于弹核原子库数向大于弹核原子库数变化过程中是连续变化的，该角区出就碎片的元素分布与弹核原子库数关系不大．对中能区核反应的过渡性质做了讨论，指出了探测阈对所测得的元素分布的影响，并讨论了元素分布的幂指数规律.
The elemental distribution of medium-quality fragments exiting at 30MeV / u 40Ar beam bombardment of different target nuclei (58Ni, 64Ni, 115In) was measured in the range of 5 ° -140 °. From 20 ° to 80 °, the exiting fragments (Z = 3-24) with atomic numbers larger than those of the atomic nuclei were observed. The differential cross section of the middle-quality fragments was found to be smaller than that of the atomic bomb Larger than the nuclear atomic library changes in the process of continuous changes in the corner of the fragments of the distribution of elements and the relationship between the number of nuclear atomic bomb has little to do. The transitional nature of the nuclear reaction in the Zhongneng area is discussed. The influence of the detection threshold on the measured elemental distributions is pointed out and the law of the exponential of elemental distribution is discussed.