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Radiation Protection Dosimetry Advance Access originally published online on February 1, 2005
Radiation Protection Dosimetry 2005 113(3):308-313; doi:10.1093/rpd/nch460
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© The Author 2005. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org

Determination of the source rate released into the environment from a nuclear power plant

Hyo-Joon Jeong1,*, Eun-Han Kim1, Kyung-Suk Suh1, Won-Tae Hwang1, Moon-Hee Han1 and Hong-Keun Lee2

1 Nuclear Environment Research Division, Korea Atomic Energy Research Institute, 150, Dukjin-dong, Yuseong-gu, Daejeon 305-353, South Korea
2 Department of Environmental Hygiene, School of Public Health, Seoul National University, San 56-1, Shillim-dong, Kwanak-gu, Seoul 151-742, South Korea

* Corresponding author: jeong1208{at}kaeri.re.kr

Received November 3, 2004, amended December 21, 2004, accepted January 10, 2005

A study was carried out to determine the source rate from a nuclear power plant using the tracer experimental data conducted at the Yeoung-Kwang nuclear site. The least squares method optimises the agreement between the released source rate and the calculated source rate by minimising the errors between the measured concentrations and the calculated ones using the Gaussian plume model. The least squares estimator generally estimates the source rate to be within a factor of 2. The forecasting ability of the source rate is improved by applying the modified dispersion coefficients that are calculated using the experimental data. Determination of the source rate in an early phase nuclear emergency will be helpful for the decision making when taking appropriate and prompt countermeasures in the case of a radiological emergency.


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