【摘要】 利用RIBLL提供的丰中子放射性束测量了17N在197Au和9Be靶上的破裂反应 .用 1 4单元阵列探测器测量得到了前角带电粒子产额和关联粒子对的破裂截面 ,得到了17N在197Au和9Be靶上的带电粒子破裂截面比为 4— 5倍 ,结果表明对重靶核除了核破裂机制外还要考虑库仑破裂的贡献更多还原

【Abstract】 The breakup reaction of neutron rich nucleus 17 N on 197 Au and 9 Be targets has been measured at RIBLL (Radioactive Ion Beam Line at Lanzhou). The product yields and the cross sections of charged particles in pair at forward angles were measured with the 14 unit detector array. The detection efficiency of the detector system was corrected by using Monte Carlo method. The breakup cross sections show that the ratio of the breakup cross section on 197 Au to 9 Be is 4—5. The cross sections of different breakup channels were also obtained. The results indicate that for a heavy target, except the contribution of nuclear dissociation, the Coulomb dissociation contribution has to be taken into account.更多还原