Abstract

In this work, radiological assessment of atmospheric release from Tehran’s Research Reactor (TRR) stack and assessment of public exposures under normal operation has been studied. To perform tasks mentioned above, Pc-Cream computer code which simulates Gaussian Dispersion air transport plume model as well as laboratory analysis of the soil and leaves samples and TLD (Thermo Luminescent Dosimeter) monitoring around the TRR site was used. Results of the Pc-Cream code showed that the annual committed and external dose received by the individual in the vicinity of the reactor is below the regulatory limit. Also, the results of laboratory analysis of available radionuclides in the soil and leaves samples showed that the concentrations are close to the background (K40=635, Th232=28, Cs137=0.29 up to 28.82, Ra226=25 (Bq[1]/Kg) in soil and K40=457, Be7≈70 (Bq/Kg) in leaves) and confirm the code results. The monitored dose values of the TLD detectors were positioned around the reactor within 500 m radius shows that the background dose in vicinity of TRR (113 μSv up to 150 μSv) is consistent with the background dose in Tehran province (125 μSv).

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http://dx.doi.org/10.18052/www.scipress.com/ilns.54.17 under the license cc-by
http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.agro-57f4cdc1-9ac6-48f8-b03a-c6fedf91c5d6,
https://www.scipress.com/ILNS.54.17,
http://agro.icm.edu.pl/agro/element/bwmeta1.element.agro-57f4cdc1-9ac6-48f8-b03a-c6fedf91c5d6,
https://academic.microsoft.com/#/detail/2407436688 under the license https://creativecommons.org/licenses/by/4.0
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Published on 01/01/2016

Volume 2016, 2016
DOI: 10.18052/www.scipress.com/ilns.54.17
Licence: Other

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