OVERVIEW OF HEALTH PHYSICS STUDIES ON TRITIUM BETA RADIATION

삼중수소 베타방사선에 관한 보건물리 연구의 적용

  • Hwang, Sun-Tae (Division of Chemistry and Radiation Research Korea Research Institute of Standards and Science) ;
  • Hah, Suk-Ho (Division of Chemistry and Radiation Research Korea Research Institute of Standards and Science)
  • Published : 1994.06.01

Abstract

As we enter the 2000s, there are four nuclear power units of the pressurized heavy water reactor-type in the commercial operation at the Wolsung Nuclear Power Plant(NPP) site where a larger amount of tritium ($\^$3/H) is released inevitably to the site environment. This radioctive nuclide is easily distributed throghout our environment because of its ubiquitous form as tritiated water (HTO) and its persistence in the environment. Tritum has certain characterisitics that present unique challenges for beta radiation dosimety and health risk assesment. In this paper, therefore, a variety of matters on tritium are considered and reviewed in terms of its characteristics and sources, metabolism and dosimetry, microdosimetry, radiobiology, risk assessment, and transport and cycling in the environment, etc.

2000년대에 진입하게 되면 월성원자력발전소에서는 4기의 가압중수로형 원자로가 상업발전을 하게 되어서 많은 양의 삼중수소($^{3}$H)가 필연적으로 주변환경에 누출될 것이다. 이러한 방사성 핵종은 삼중수소의 형태로 편재되어 있으면서도 지속성을 갖고 있어서 우리의 환경에 쉽게 분포된다. 삼중수소는 베타방사선량 계측과 보건위해 평가를 위해 독특한 과제를 제시하는 특성을 갖고 있어서 본 논문에서는 삼중수소에 관한 여러가지 문제들을 보건물리와 관련하여 특성과 원천, 신진대사와 선량계측, 미세선량계측, 방사생물, 위해평가, 환경 경로 및 순환 등의 견지에서 정리하였다.

Keywords