Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

Natural and Artificial Radionuclides (Potasium-40, Radium-226, Thorium-232 and Cesium-137) Assessment in the Planted Rice Samples in Guilan

Document Type : Research Paper

Authors

A Ghasemi
M Vahabi Moghaddam
T Hosseini
M Sedaghati zadeh
Abstract
In this project, the activity concentration of some radionuclides in rice samples, collected from Guilan province have been analyzed and the results have been compared with rice samples imported from other countries. For this purpose, sixteen types of rice samples from different region of Guilan and four imported rice samples have been collected. The collected samples have been analyzed in order to determine the activity concentration of number of radionuclides such as 40K, 226Ra, 232Th and 137Cs. A gamma spectroscopy system with a high purity germanium detector (HPGe) has been used for the radioactivity measurement. Thehighest activityconcentration in the rice samples belongs to potassium-40. The mean activity of 40K, 220Ra, 232Th and 137Cs were (30.23±5.51), (3.30±1.75)10-2, (3.78±1.65)10-2 and (2.65±0.99)10-2 Bq.Kg-1, respectively. It can be concluded that all the activity concentrations are comparable with the values that have been, imported for other countries.

Highlights

  1. 1.    هسته‌ای،“ ترجمه ر. کوهی و م. هادی‌زاده یزدی، کتابستان مشهد (1371).                                                                       

 

  1. 2.    Principles of Radiation Protection, IAEA Basic Medical Radiation Safety Training Package, (2001).

 

  1. 3.    K.N. Ya and S.Y. Mao, “Assessment of radionuclide contents in food in Hong Kong,” Health Phys. 77 (6): 686-696 (1999).

 

  1. 4.    I.M. Fisenne, P.M. Perry, K.M. Decker, H.W. Keller, “The daily intake of 234,235,238U, 228,230,232 Th and 226,228Ra by New York city residents,” Health Phys.53 (4): 357-363 (1987).

 

  1. 5.    L. Venturini, and G.A.A. Sordi, “Radioactivity in and committed effective dose from some Brazilian foodstuffs,” Health Phys. 76 (3): 311-313 (1999).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. 6.    Department of the environment: HMIP-Commissioned research Natural radionuclide in environmental media, DoE Report NO: DoE/HMIP/RR/93/063 (1993).

 

  1. 7.    K. Shiraishi, K. Tagami, Y. Muramastu, M. Yamamoto, “Contributions of 18 food categories to intake of 232Th and 238U in Japan,” Health Phys. 78 (1): 28-36 (2000).

 

  1. 8.    The Vietnam agency for radiation and nuclear safety and control, LC No. FE 84000449 (2005).

 

  1. 9.    UNSCEAR, “Sources & effects of ionizing radiation, united Nations, scientific committee on the effects of atomic radiation,” New York (2000).

Keywords

Natural and Artificial Radionuclides
Gamma Spectroscopy
Rice-Guilan
Germanium Detector
  1. 1.    هسته‌ای،“ ترجمه ر. کوهی و م. هادی‌زاده یزدی، کتابستان مشهد (1371).                                                                       

 

  1. 2.    Principles of Radiation Protection, IAEA Basic Medical Radiation Safety Training Package, (2001).

 

  1. 3.    K.N. Ya and S.Y. Mao, “Assessment of radionuclide contents in food in Hong Kong,” Health Phys. 77 (6): 686-696 (1999).

 

  1. 4.    I.M. Fisenne, P.M. Perry, K.M. Decker, H.W. Keller, “The daily intake of 234,235,238U, 228,230,232 Th and 226,228Ra by New York city residents,” Health Phys.53 (4): 357-363 (1987).

 

  1. 5.    L. Venturini, and G.A.A. Sordi, “Radioactivity in and committed effective dose from some Brazilian foodstuffs,” Health Phys. 76 (3): 311-313 (1999).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. 6.    Department of the environment: HMIP-Commissioned research Natural radionuclide in environmental media, DoE Report NO: DoE/HMIP/RR/93/063 (1993).

 

  1. 7.    K. Shiraishi, K. Tagami, Y. Muramastu, M. Yamamoto, “Contributions of 18 food categories to intake of 232Th and 238U in Japan,” Health Phys. 78 (1): 28-36 (2000).

 

  1. 8.    The Vietnam agency for radiation and nuclear safety and control, LC No. FE 84000449 (2005).

 

  1. 9.    UNSCEAR, “Sources & effects of ionizing radiation, united Nations, scientific committee on the effects of atomic radiation,” New York (2000).

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