Assessment of Thyroid Radiation Doses Due To Various Iodine Radionuclides Released From Triga Mark II Research Reactor Accident | |
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( Volume 1 Issue 2,August 2015 ) OPEN ACCESS | |
Author(s): | |
M. M. Ali, M. M. Zaman, M. S. Hossain, M. A. Zaman, A. S. Mollah | |
Abstract: | |
In the present work, the whole body external dose due to various iodine radionuclides for hypothetical reactor accident is calculated. Aiming to get the dose, calculations have also been done for core inventory, source term, and atmospheric dispersion factor. In this work, Pasquill-Gifford stability classification has been employed to consider stability class around the TRIGA reactor site. Six weather categories, designated from A to F are defined in order of increasing atmospheric stability and the site is found to be “B” according to the stability classification. A computer program named ‘RaDARRA’ has been developed in the present work for the calculation. The objective of this study is to assess thyroid doses due to various iodine radionuclides such as, 131I, 132I, 133I, 134I and 135I at different distance from the reactor site for hypothetical research reactor accident. The largest contributors to the thyroid doses are 133I and 131I. |
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