Calculation of Internal Exposure Dose in Korean Man Resulting from Single and Chronic Intake of Tritium

트리튬($^{3}H$)의 단일(單一) 및 만성섭취(晩性攝取)에 대한 한국인(韓國人)의 내부피복(內部被曝) 선량(線量) 계산(計算)

  • 김장렬 (한양대학교 원자력 공학과) ;
  • 육종철 (한양대학교 원자력 공학과) ;
  • 하정우 (한국에너지 연구소 안전관리실)
  • Published : 1983.11.30

Abstract

The doses to Korean adult by a single and chronic intake of tritiated water are determined using a three compartment model, which describes the retention of tritium radionuclide in body water and in bound organic form in the body. The results show that the total dose of a single intake, using retention half-time for the three-compartment of 9, 30, and 450 days, is 17.64 mrads ($176.4{\mu}Gy$) per 1mCi/kg ($3.7{\times}10^7Bq/kg$) intake, 97% of which is due to tritium in body water and 3% to bound tritium in tissue. In the chronic intake of 1mCi/day($3.7{\times}10^7Bq/day$) tritiated water, the total dose is 85.5 mrad/day(0.855mGy/day). Furthermore, in this study (MPC) a and (MPC)w values of tritium for Korean man are calculated by using the modified formula originated from ICRP Publication-2. From the results, we found that the (MPC) a, w values of ICRP underestimated approximately 50%, the (MPC)a, w values of Korean man must be elevated as high as approximately 50% than that of ICRP.

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