Radiological assessment of atmospheric release from Tehran Research Reactor during normal operation by using Pc-Cream code

• Autorzy: Sadeghi N. , Ahangari R.
• Języki publikacji: EN

Abstrakty

EN

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 (Bq1/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).

Słowa kluczowe

EN

Iran; Tehran; Tehran Research Reactor; reactor; radiological assessment; radioactive material; radionuclide

• Wydawca: -
• Czasopismo: International Letters of Natural Sciences
• Rocznik: 2016
• Tom: 54
• Opis fizyczny: p.17-26,fig.,ref.

Twórcy

autor

Sadeghi N.

• Reactor School-Nuclear Science and Technology Institute, Tehran, Iran

autor

Ahangari R.

• Reactor School-Nuclear Science and Technology Institute, Tehran, Iran

Bibliografia

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• [2] Alastair G. Williams, Geoffrey H. Clark and Leisa Dyer, Nuclear tools for characterizing radiological dispersion in complex terrain: evaluation of regulatory and emergency response models, Int. J. Environment and Pollution, Vol. 24, Nos. 1/2/3/4, 2005.
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• [9] UNSCEAR, United Nation Scientific Committee on the Effects of Atomic Radiation Sources and effects of ionizing radiation, Report of the United Nations Scientific Committee on the Effect of Atomic Radiation to General Assembly, New York, USA, 2000.
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• [11] Hafezi, S., Amidi, J., Attarilar, A., Concentration of natural radionuclides in Soil and assessment of external exposure to the public in Tehran. J. Radiat. Res 3(2): 85-88, 2005.
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• DOI References
• [1] Mehdi Sohrabi, Zeinab Parsouzi A. Sh, Reza Amrollahi, Maryam Ghasemi, Public exposure from environmental release of radioactive material under normal operation of unit-1 Bushehr nuclear power plant, Annals Of Nuclear Energy 55(351-358), May (2013). 10.1016/j.anucene.2012.12.002
• [2] Alastair G. Williams, Geoffrey H. Clark and Leisa Dyer, Nuclear tools for characterizing radiological dispersion in complex terrain: evaluation of regulatory and emergency response models, Int. J. Environment and Pollution, Vol. 24, Nos. 1/2/3/4, (2005). 10.1504/ijep.2005.007387
• [9] UNSCEAR, United Nation Scientific Committee on the Effects of Atomic Radiation Sources and effects of ionizing radiation, Report of the United Nations Scientific Committee on the Effect of Atomic Radiation to General Assembly, New York, USA, (2000). 10.18356/744848ef-en
• [10] IAEA, International Atomic Energy Agency, Measurement of Radionuclides in Food and the Environment, Technical Report Series No. 295, (1989). 10.1002/food.19900340339

Identyfikatory

DOI

10.18052/www.scipress.com/ILNS.54.17