Estimation on probability of radiological hazards for nuclear facilities decommissioning based on fuzzy and event tree method

This paper proposes the estimation method on probability of decommissioning hazards for nuclear facilities. Evaluation method of decommissioning hazardous accidents is based on fuzzy and event tree method. Expert’s knowledge was considered as state of the basic variable with a normal distribution, which was considered to represent the membership function. The proposed method has been successfully applied to the removal of rotary specimen rack in KRR-2.

► Estimation method on probability of decommissioning hazards for nuclear facilities.
► Evaluation method of decommissioning hazardous accidents is based on fuzzy and event tree method.
► Case study on removal of rotary specimen rack in KRR-2.