CAJ | 학술논문

根据最新国际防护标准，采用QAD-CG程序，对上海市农业科学院钴源室的各点屏蔽参数进行验算得出如下结论：该钴室扩源至3.7×1015Bq（1×105ci）后，其辐照防护安全系数在1.6～25.0之间，是安全的；最大的扩源能力为5.55×1015Bq（1.5×105ci）。辐照停止后再通风10min以上，臭氧浓度可降至0.12mg/m3（符合GB3095-1996）。
근거최신국제방호표준，채용QAD-CG정서，대상해시농업과학원고원실적각점병폐삼수진행험산득출여하결론：해고실확원지3.7×1015Bq（1×105ci）후，기복조방호안전계수재1.6～25.0지간，시안전적；최대적확원능력위5.55×1015Bq（1.5×105ci）。복조정지후재통풍10min이상，취양농도가강지0.12mg/m3（부합GB3095-1996）。
According to the up-to-dated international radio-protec tionstandard and the process QAD-CG, some spot screen parameters were monitored and calculat e d in the cobalt unit of Shanghai Academy of Agricultural Sciences. Conclusion i s that its safety coefficient of the radio-protection ranged from 1.6 to 25.0, when the capacity of the cobalt unit w as expanded to 3.7×1015 Bq, which is therefore safe and sound. Anyway, i ts maxi mum expansion could be 5.55×1015 Bq. When irradiation is stopped and 10 -minute venti lation provided, the ozone concentration will be down to 0.12 mg/m3, which abs olutely accords with the GB3095-1996.