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Ali Hassan Ahmed1 and Ahmed Ismael Samad
Department of Physics, College of Science, Univ. of Salahaddin-Erbil
DOI: https://doi.org/10.17656/jzs.10351
Abstract
This work investigates the natural 226Ra,232Th,40K, 222Rn,220Rn and man-made137Cs radionuclides
in foodstuff elements consumed by Iraqi Kurdistan region population (Erbil).The measurements were
carried out by using a high efficiency NaI(TI) gamma-ray spectrometerandCR-39 solid state nuclear
track detectors. The estimated average activity concentrations in foodstuff were found to be0.17Bq kg-1
for 226Ra, 0.183 Bq.kg-1 for 232Th, 515.5Bq kg-1 for 40K, 0.11Bq.kg-1 for 137Cs and 108.46Bq.m-3
for 222Rn.The total annual internal dose resulting from ingestion of radioisotopes in foodstuff was ranged
from 0.01μSv.year-1 to 270.8μSv.year-1whichlies within the standard safety range of consumption.
Keywords: Radioactivity, gamma spectroscopy, CR-39, Foodstuff.
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