Optimization of Radiation Protection Using Markov Model

마코프 모델을 이용한 방사선 방어의 최적화

  • Chung, Jin-Yop (Department of Nuclear Engineering Korea Advanced Institute of Science and Technology) ;
  • Lee, Kun-Jai (Department of Nuclear Engineering Korea Advanced Institute of Science and Technology)
  • 정진엽 (한국 과학기술원 핵공학과) ;
  • 이건재 (한국 과학기술원 핵공학과)
  • Published : 1989.12.20

Abstract

An analytic method for quantitative comparisions between the alternatives for radiation protection optimization is required to aid the decision making process. This paper introduces the dynamic Markov model to evaluate the effect of inservice inspection, testing, and repair activities of the plant on radiation protection. In the example to put the Markov model into practice, the steam generator inspection intervals which minimize expected cost and total exposure dose were determined using the data for Kori-2 unit and foreign plants. The results show that the effect of the radiation exposure on the steam generator inspection interval is determined by the cost rather than the radiation exposure. The Markov model used in the example can be applied easily to the domestic NPPs by replenishing the data and also can be used in evaluating the comparative priority between various alternatives for radiation protection optimization.