【摘要】 本文叙述了在更换研究性重水反应堆内壳中的辐射防护方法、辐射监测与评价。所采取的辐射安全管理和辐射防护措施有效地保证了工作人员、工作场所及周围环境的安全。更换内壳所用集体剂量当量为23.37人·雷姆,其中外照射为22.4人·雷姆,它主要来自⁶⁰Co 的贡献。氚所产生的集体剂量当量为0.97人·雷姆,其它核素的污染均小于 MPBB的0.15%。更多还原

【Abstract】 This paper describes radiation protection methods,radiationmonitoring and assessments in replacement of the HWRR reactor vessel.Theadministration of radiation safety and measures in radiation protection effctivelyprotect the workers,working areas,and environment from the radiation.Theoccupational collective dose equivalent is 23.37 man rein during the period ofreplacement,of which the external collective dose equivalent is 22.4 man·rem,the main fraction of dose is from ⁶⁰Co.The internal contamination mainlycomes from tritium,and its committed collective dose equivalent is 0.97man·rein.The internal contamination induced by other nuclides is less than0.1% of the MPBB.更多还原