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１０次倒装钴源的现伤监督体会孙文钧俞荣生（苏州市卫生防疫站，苏州２１５００３）一个装源活度为３７ＰＢｑ（１０万居里）的铅罐一旦发生意外事故，在距放射源１米处的吸收剂量率约为０３３Ｇｙ／ｓ［１］，工作人员若在该处被照射３０秒钟，累积剂量可达１０Ｇｙ...
10 times the failure of the cobalt-coated source supervise the experience of Sun Wensheng Yu Rongsheng (Suzhou City Health and Epidemic Prevention Station, Suzhou 215003) A source activity of 3 7PBq (10 million Curie) of lead in the event of an accident, The absorbed dose rate at 1 meter is about 033 Gy / s [1]. If the worker is irradiated there for 30 seconds, the accumulated dose can reach 10 Gy ...