【摘要】 <正> 本文采用70MeV的¹²C离子束照射同位素⁶⁴Zn靶产生⁷²Br(T_1/2=1.31分)、⁷³Br(T_1/2=3.3分)、⁷⁴Br(T_1/2=25.7分)。实验中测得了⁷³Br的全部γ射线相对强度、大部份⁷²Br的γ射线相对强度和部分⁷⁴Br的γ射线相对强度,所测得的Er、Ir的半衰期在误差范围内同文献值基本一致。更多还原

【Abstract】 72,73Br are produced by bombardment of 12C ions on 64Zn target. 72,73Br can be separated from other products of the reaction by combination of the He-jet fast recoil transport system with a chemical separation method. 72,73Br is identified and the relative chemical yield is 87% with the decontamination factors of 60 for germanium isotopes, 72 for arsenic isotopes and 110 for cesium isotopes.更多还原