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该公司1975～1987年购进的五种类型25台放射源装置的使用情况。其中由英国进口~(241)Am-Be中子源4枚,放射性活度均为100mCi;国产γ料位计(~(60)Co与~(137)Cs)10台、其活度为20～66mCi,~(137)Csγ出度计6台、活度3～10mCi,~(238)Puγ源荧光分析仪5台、活度均为30mCi。上述装置除5台分析仪和1台出度计一直使用外,其余19台仅使用1～4年,现已停用2～15年,其使用率仅为24.0％。所有放射源的订购和启用均未按放射防护法规和有关条例办理,已停用的放射源由各单位自行保管,有的单独存放,有的与杂物混放在简陋小房内。由此可
The company from 1975 to 1987 purchased five types of 25 radioactive source device usage. Among them, four (241) Am-Be neutron sources were imported from the United Kingdom and their radioactivity was 100 mCi. There were 10 domestic γ-level meters (~ (60) Co and 137Cs) ~ 66mCi, ~ (137) Csγ, 6 activity, 3 ~ 10mCi, ~ (238) Puγ source fluorescence analyzer 5, the activity is 30mCi. Except for 5 analyzers and 1 outlet meter, the above devices have been used for only 1 to 4 years and have been suspended for 2 to 15 years with a utilization rate of only 24.0%. All radioactive sources have not been ordered or activated in accordance with the relevant laws and regulations on radiological protection. Relevant sources of radioactive sources have been kept by the units themselves, and some have been kept separately, while others have been mixed up with other materials in shanties. From this can