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用蒸馏和液体闪烁计数法测量了中国工程物理研究院核物理与化学研究所原工作地点核退役过程中直接接触氚和间接接触氚工作人员的尿样 ,氚浓度在 10 2 ～ 10 5Bq/L ,最大氚浓度为 2 7× 10 5Bq/L ,折合剂量当量约为 0 19mSv。短期观测了 2 3名氚生物半衰期 ,其范围为 5 5～ 14 8d ,平均值 9 1d ;中期观测了 5名氚生物半衰期 ,其范围为 7 6～ 9 4d ,平均值为 8 5d。观测的共2 8名工作人员氚生物半衰期与理论值 10d接触 ,并且与国内外的观测值符合。
The urine samples with direct contact with tritium and indirect contact with tritium staff during nuclear decommissioning were measured by distillation and liquid scintillation counting method with the tritium concentration of 10 2 ~ 10 5Bq / L in the nuclear reactor at the original working site of Institute of Nuclear Physics and Chemistry of China Academy of Engineering Physics , The maximum tritium concentration of 27 × 10 5Bq / L, equivalent dose equivalent to about 0 19mSv. Short-term observation of 23 tritium biological half-lives, its range of 5 5 ~ 14 8d, an average of 9 1d; metaphase 5 tritium biological half-life observed in the range of 7 6 ~ 9 4d, with an average of 85d. The observed half-life of tritium from a total of 28 staff members came into contact with the theoretical value of 10 days and was in line with the observations at home and abroad.