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本文报道北京市从事１２５Ｉ标记的工作人员和各类型医院从事核医学的放射工作人员的内照射个人监测及剂量估算方法和结果。共监测了２８个单位的２３１人，其中，从事核医学的放射工作人员１５２人，从事１２５Ｉ标记的７９人。监测结果表明，受到内污染者共１３８人，占总监测人数的５９．７％；受到污染的１３８名放射性工作人员的年个人待积有效剂量当量在２．２×１０－３～２．２ｍＳｖ范围内；被监测的全体人员的集体待积有效剂量当量为２．２×１０－２人·Ｓｖ；人均待积有效剂量当量为９．５×１０－２ｍＳｖ；被监测的全部放射工作人员年待积有效剂量当量均在２．２ｍＳｖ以下。
This article reports on individual monitoring and dose estimation methods and results of internal exposure of radiation workers engaged in nuclear medicine in 125I-labeled staff in Beijing and various types of hospitals. A total of 231 personnel in 28 units were monitored, of whom 152 were radiological staff engaged in nuclear medicine and 79 were engaged in 125I labeling. The monitoring results showed that a total of 138 people were internally polluted, accounting for 59.7% of the total number of polluters. The annual equivalent effective dose equivalent of 138 polluted radioactive workers was 2.2 × 10-3 ~ 2.2mSv ; The collective effective dose equivalent of the entire staff to be monitored is 2.2 × 10-2 persons · Sv; the effective equivalent dose per capita is 9.5 × 10-2mSv; the total number of radiation workers monitored To be plot effective dose equivalent are below 2.2mSv.