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分析了某研究堆寿期后控制棒的源项及取样过程中存在的辐射危害,制定了操作过程中的辐射监测和防护方案。监测结果表明,整个取样过程中,操作人员个人累积剂量最大为61μSv,集体剂量为229人·μSv,采取的辐射防护措施有效地保证了取样过程中工作人员的辐射安全。
The source of the control rod and the radiation hazard in the sampling process after the life of a research reactor are analyzed. The radiation monitoring and protection scheme during the operation is also worked out. The monitoring results show that during the whole sampling process, the maximum accumulated dose of the operator is 61μSv and the collective dose is 229μSv. The radiation protection measures taken to ensure the radiation safety of the staff during the sampling process are effective.