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J Radiat Prot > Volume 11(2); 1986 > Article
Journal of Radiation Protection 1986;11(2):139-0.
방사선 측정 및 해석 연구 -원자로 냉각수중의 방사능해석에 의한 결함핵연료봉의 평가-
양재춘;오희필;전재식;이호연;오헌진;정문규;박해용;
Measurement and Analyses of Radiation -Assessment of Defected Fuel by Analysis of Reactor Coolant Activities-
Yang, Jae-Choon;Oh, Hi-Peel;Jun, Jae-Shik;Lee, Ho-Yon;Oh, Heon-Jin;Chung, Moon-Kyu;Park, Hae-Yong;
ABSTRACT
An improved mothod of assessing fuel status by analyzsis of the fission product in the reactor coolant system is proposed. The release mechanism of specific fission products is established for determination of the coefficients in the equations which relate the radioactivities with the amount of defected fuel. Knock-out and migration models are employed in the formulation of the release mechanism. The influence of the tramp uranium is quantified. Sample calculations were made for KNU 1 reactor system using the I-131 and I-133 concentrations in the primary coolant. The estimated number of defected fuel pins in the third and sixth cycles appeared to be $9.34{pm}1.13;and;0.294{pm}0.092$, respectively.
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