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J Radiat Prot > Volume 29(2);2004 > Article
Journal of Radiation Protection 2004;29(2):73.
가동중 원자력 시설 주변 주민의 내부피폭선량 계산을 위한 농산물내 핵종 농도 평가법 개선
Improvement on the Method of Estimating Radionuclide Concentrations in Agricultural Products for the Off-Site Internal Dose Calculation for Operating Nuclear Facilities
Choi, Y.H.;Lim, K.M.;Hwang, W.T.;Choi, G.S.;Choi, H.J.;Lee, C.W.;
The Reg. Guide 1.109 model was reviewed against its applicability to calculating radionuclide concentrations in agricultural products for operating nuclear facilities and an improved method was proposed. The model was so modified that the radionuclides deposited since the start of operation could be considered in assessing the root uptake. Translocation factors were introduced in the equation for calculating the concentrations in edible parts due to direct plant deposition. Values specific to Korea were set up for the input parameters of the modified model. The concentrations of $^{54}Mn,;^{60}Co,;^{90}Sr;and;^{137}Cs$ in rice seeds, Chinese cabbage and radish root were calculated for various hypothetical deposition histories using the Reg. Guide 1.109 model and the modified model with parameter values in the guide and those specific to Korea put in alternately. Through comparisons among the results, it could be expected that the use of the modified model with the input of parameter values specific to Korea would result In a more resonable and realistic assessment.
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