Nuclear Energy for New Europe 2009

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No: 1012

Conference: Nuclear Energy for New Europe 2009

Title: Radiochemical Determination of STRONTIUM-90 in Soil Samples from the Central Area of Iran, by Cerenkov Counting

Theme: Radiation and Environment

Author(s): S.J. Ahmadi, F. Asgharizadeh, Ghannadi Maragheh, H.R. Pakoyan, M. Karami

Contact : H.R. Pakoyan

E-mail: pakoyan_81@yahoo.com

Address: Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI
Tehran

Country: Iran

A number of studies by the Radiation Public Health Project assert that levels of radioactive 90Sr are rising in the environment and that these increased levels are responsible for increases in cancer, particularly cancers in children, and infant mortality. 90Sr is a uranium and plutonium fission by–product in nuclear reactors and nuclear accident. Following the release of 90Sr in environment and the food chain 1? therefore measurement of 90Sr in environment sample would be important. In this paper radiochemical for measurement of 90Sr were based on separation of 90Y (decay product of 90Sr) with tributhlphosphate (TBP) and followed by the preconcentration by precipitation with ammonium oxlate and source preparation for irradiation by low level liquid scintillation spectrometer respectively. The lower minimum detectable activity (MAD) for 1000 min counting time was 0.60 Bq/Kg for 53.9% confidence level.

No:	1012
Conference:	Nuclear Energy for New Europe 2009
Title:	Radiochemical Determination of STRONTIUM-90 in Soil Samples from the Central Area of Iran, by Cerenkov Counting
Theme:	Radiation and Environment
Author(s):	S.J. Ahmadi, F. Asgharizadeh, Ghannadi Maragheh, H.R. Pakoyan, M. Karami
Contact :	H.R. Pakoyan
E-mail:	pakoyan_81@yahoo.com
Address:	Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI Tehran
Country:	Iran

A number of studies by the Radiation Public Health Project assert that levels of radioactive 90Sr are rising in the environment and that these increased levels are responsible for increases in cancer, particularly cancers in children, and infant mortality. 90Sr is a uranium and plutonium fission by–product in nuclear reactors and nuclear accident. Following the release of 90Sr in environment and the food chain 1? therefore measurement of 90Sr in environment sample would be important. In this paper radiochemical for measurement of 90Sr were based on separation of 90Y (decay product of 90Sr) with tributhlphosphate (TBP) and followed by the preconcentration by precipitation with ammonium oxlate and source preparation for irradiation by low level liquid scintillation spectrometer respectively. The lower minimum detectable activity (MAD) for 1000 min counting time was 0.60 Bq/Kg for 53.9% confidence level.