Probabilistic safety assessment for food irradiation facility
- 作者：R.B. Solanki ; rajsolanki@aerb.gov.in ; M. Prasad mprasad@aerb.gov.in ; A.U. Sonawane ausonawane@aerb.gov.in ; S.K. Gupta guptask@aerb.gov.in
- 关键词：Probabilistic safety assessment ; Non-Reactor Nuclear Facilities ; Food irradiation facility ; Safety evaluation ; Safety culture
- 刊名：Annals of Nuclear Energy
- 出版年：2012
- 期刊代码：1_03064549
- 类别：pw
- 出版时间：May, 2012
- 卷：43
- 期：Complete
- 页码：123-130
- 文件大小：1145 K
摘要
Probabilistic safety assessment (PSA) is widely used for safety evaluation of Nuclear Power Plants (NPPs) worldwide. The approaches and methodologies are matured and general consensus exists on using these approaches in PSA applications. However, PSA applications for safety evaluation for non-reactor facilities are limited. Due to differences in the processes in nuclear reactor facilities and non-reactor facilities, the considerations are different in application of PSA to these facilities. The food irradiation facilities utilize gamma irradiation sources, X-ray machines and electron accelerators for the purpose of radiation processing of variety of food items. This is categorized as Non-Reactor Nuclear Facility. In this paper, the application of PSA to safety evaluation of food irradiation facility is presented considering the 鈥榝atality due to radiation overexposure鈥?as a risk measure. The results indicate that the frequency of the fatal exposure is below the numerical acceptance guidance for the risk to the individual. Further, it is found that the overall risk to the over exposure can be reduced by providing the adequate operator training and observing good safety culture.