【摘要】 用能量为２６．８ＭｅＶ的ａ粒子轰击天然Ａｇ靶，采用迭靶技术测定了￣（１０７）Ａｇ（ａ，ｎ）￣（１１０）Ｉｎ￣ｍ，￣（１０７）Ａｇ（ａ，２ｎ）￣（１０９）Ｉｎ，￣（１０９）Ａｇ（ａ，ｐｎ）￣（１０９）Ｃｄ和￣（１０９）Ａｇ（ａ，２ｎ）￣（１１１）Ｉｎ反应的激发函数。同前人结果作了比较，并用激子模型作了理论计算。结果表明，在上述反应中存在平衡前发射反应机制。更多还原

【Abstract】 Targets of natural silver foils are bombarded by 26. 8 MeV a beam. Using stacked-foiltechnique, the excitation functions for ￣(107)Ag(a, n)￣(110)In￣m,￣(107)Ag(a, 2n)￣(109)In,￣(107)Ag(a, pn)￣(109)Cd and￣(109)Ag(a, 2n)￣(111)In reactions are deteimined. The present results are compared with previous pub-lished data. The theoretical calculations are given by exciton model. It is showed that there is sig-nificant contribution of preequilibrium emission reaction in these reactions.更多还原