نوع مقاله: مقاله پژوهشی
نویسندگان
1 گروه فیزیک، دانشکده علوم، دانشگاه صنعتی خواجه نصیرالدین طوسی، صندوق پستی: ، تهران ـ ایران
2 گروه فیزیک، دانشکده علوم، دانشگاه گیلان، صندوق پستی: ، رشت ـ ایران
3 امور حفاظت در برابر اشعه، سازمان انرژی اتمی، صندوق پستی: 4494-14155، تهران ـ ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
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.
کلیدواژهها [English]