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用72.5MeV和~(12)C离子轰击天然镍靶,合成了~(66)Ge和~(67)Ge同位素,并用气体喷嘴传输技术将反冲核传输到8m之外的低本底区进行气相分离。以加热到600℃的AgCl作添加剂和1.2atm的He气作载气,较详细地究研了Ge同位素的在线分离条件。10min之内可满意地分离出Ge的同位素,吸附收率在60％以上,对As和Ga的去污因子分别为(8.21±3.53)×10~2和(1.52±0.27)×10~2。
The ~ (66) Ge and ~ (67) Ge isotopes were synthesized by bombarding native nickel targets with 72.5 MeV and ~ (12) C ions and the recoil nucleus was transported to a low background region outside of 8 m using a gas nozzle transport technique Gas phase separation. The conditions for on-line separation of Ge isotopes were investigated in detail with AgCl heated to 600 ° C as an additive and He gas at 1.2 atm as the carrier gas. The isotopes of Ge were satisfactorily separated within 10 min, the adsorption yield was over 60%, and the decontamination factors for As and Ga were (8.21 ± 3.53) × 10 2 and (1.52 ± 0.27) × 10 -2, respectively.