Vickers Linda
Health Phys. 2018 Jun;114(6):654-659. doi: 10.1097/HP.0000000000000864.
Criticality accident detectors are required for all operations involving fissile materials in which a criticality accident can occur and cause personnel to receive unacceptable exposure to radiation (ANSI/ANS 8.3-R2012). Recently, the U.S. Department of Energy Y-12 National Security Complex tested six criticality accident detectors and eight Portable Radiation Detection Instruments (PRDIs) to verify their performance under actual criticality conditions. The tests were performed by Los Alamos National Laboratory using the Godiva critical assembly located at the National Criticality Experiments Research Center at the U.S. Department of Energy Nevada National Security Site. All six criticality accident detectors and eight Portable Radiation Detection Instruments passed the performance tests. The test results provide reasonable assurance that the Y-12 criticality accident detectors and PRDIs will detect a criticality accident and warn workers to evacuate the area to minimize their exposure to this life-threatening hazard.
对于所有涉及易裂变材料且可能发生临界事故并导致人员受到不可接受辐射暴露的操作，都需要临界事故探测器（ANSI/ANS 8.3-R2012）。最近，美国能源部Y-12国家安全综合体测试了六个临界事故探测器和八个便携式辐射探测仪器（PRDI），以验证它们在实际临界条件下的性能。这些测试由洛斯阿拉莫斯国家实验室使用位于美国能源部内华达国家安全站点国家临界实验研究中心的戈迪瓦临界装置进行。所有六个临界事故探测器和八个便携式辐射探测仪器都通过了性能测试。测试结果提供了合理的保证，即Y-12临界事故探测器和PRDI将探测到临界事故并警告工作人员撤离该区域，以尽量减少他们暴露于这种危及生命的危险之中。
