Courtney J C, Ferguson K R, Holson C E, Bacca J P
Health Phys. 1982 Oct;43(4):465-80. doi: 10.1097/00004032-198210000-00001.
Extensive decontamination was conducted to prepare the interior of the argon cell at the Hot Fuel Examination Facility for refurbishment. The radiation field associated with 10-16 yr-old fission products was reduced by remote cleaning before personnel entry. This paper describes the operations, dosimetry, protective clothing, hardware and procedures used to ensure compliance with radiation exposure guidelines. Contact decontamination was conducted in general radiation levels that varied from 300 to less than 30 mrem/hr for that component of the radiation that could penetrate 540 mg per cm2 of aluminum. However, it was the nonpenetrating component that controlled in-cell stay times; it varied from 1500 to less than 130 mrem/hr. Even after decontamination, several areas of fixed contamination emitting over 1000 mrem/hr of nonpenetrating radiation were identified and locally shielded. There were 916 person-entries required for decontamination. These resulted in integrated exposures of 99 and 599 man-rem for the whole body and skin, respectively.
在热燃料检验设施对氩气室内部进行了全面去污，为翻新做准备。在人员进入之前，通过远程清洁降低了与10至16年历史的裂变产物相关的辐射场。本文描述了为确保符合辐射暴露准则而使用的操作、剂量测定、防护服、硬件和程序。对于能够穿透每平方厘米540毫克铝的那部分辐射，接触去污是在一般辐射水平下进行的，该水平从300毫雷姆/小时到低于30毫雷姆/小时不等。然而，控制在室内停留时间的是不穿透部分；其范围从1500毫雷姆/小时到低于130毫雷姆/小时。即使在去污之后，仍识别出了几个固定污染区域，其发出的不穿透辐射超过1000毫雷姆/小时，并对这些区域进行了局部屏蔽。去污需要916人次进入。这些导致全身和皮肤的累积暴露分别为99人-雷姆和599人-雷姆。
