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J Radiat Prot > Volume 12(2); 1987 > Article
Journal of Radiation Protection 1987;12(2):28-0.
복잡 지형에서의 주민선량 계산
윤여창;하정우;
Population Dose Assessment for Radiation Emergency in Complex Terrain
Yoon, Yea-Chang;Ha, Chung-Woo;
ABSTRACT
Gaussian plume model is used to assess environmental dose for abnormal radioactive release in nuclear facility, but there has a problem to use it for complex terrain. In this report, MATTEW and WIND04 Codes which had been verified were used to calculate wind field in the complex terrain. Under the base of these codes principle, wind fields were obtained from the calculation of the finite difference approximation for advection-diffusion equations which satisfy the mass-conservative law. Particle concentrations and external doses were calculated by using PIC model which approximate the particle to radioactive cloud, and atmospheric diffusion of the particles from the random walk method. The results show that the adjusted wind fields and the distributions of the exposure dose vary with the topography of the complex terrain.
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