Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, IL 60439.
Health Phys. 2022 Mar 1;122(3):452-462. doi: 10.1097/HP.0000000000001515.
The application of ALARA (as low as reasonably achievable) principles to the design of new radiological facilities at Argonne National Laboratory provides a consistent radiation safety basis for future facility operations. This paper discusses the criteria for controlling radiation exposure and the techniques applied to meet those criteria for two new facilities. Argonne is a US Department of Energy (US DOE) laboratory, and the criteria are specified in the DOE Rule found at 10 CFR 835. The worst case radionuclides and their source strengths are chosen. Local shielding is specified to reduce dose rates to less than 50 μSv h-1at 30 cm from the shielding, thus avoiding the creation of a radiation area. Version 6 of the Los Alamos National Laboratory radiation transport code MCNP is then used to calculate the dose rates elsewhere. Based on the results of the calculations, design modifications are made to meet the design objectives criteria.
将“尽量低”（ALARA）原则应用于阿贡国家实验室新放射性设施的设计，为未来设施运行提供了一致的辐射安全基础。本文讨论了控制辐射照射的标准以及为满足两个新设施的这些标准而应用的技术。阿贡是美国能源部（US DOE）的一个实验室，这些标准在 10 CFR 835 中规定。选择了最坏情况下的放射性核素及其源强。指定了局部屏蔽，以将屏蔽处 30 厘米处的剂量率降低到 50 μSv h-1以下，从而避免产生辐射区。然后使用洛斯阿拉莫斯国家实验室的辐射输运代码 MCNP 的版本 6 计算其他地方的剂量率。根据计算结果，对设计进行修改，以满足设计目标标准。
