Gamma Dose Rate Measurement and Dose Rate Calculation of Sensitive Organs in the Vicinity of Hot Springs in Kerman Province, Southeastern Iran

摘要

Measurement of background radiation is very important from different points of view especially to human health. In some cases exposure rate near hot springs are higher than those of normal areas. The high background radiation of hot springs is primarily due to the presence of very high amounts of Ra-226 and its decay products. The aim of this paper was to measure environmental gamma radiation of 19 hot springs in Kerman province with RDS-110 surveymeter and sensitive organs dose rates were calculated. Measurements were carried out at one meter above water level in the vicinity of hot springs. The results indicate that annual gamma-ray dose rate in the vicinity of 19 hot springs ranged from 0.53 + 0.23mSv/y to 1.65+0.54 mSv/y. Also the annual bone marrow and sexual organs dose rates are in ranged from 0.42 ± 0.18 mSv/y to 1.32 + 0.43 mSv/y and 0.43 ± 0.19 mSv/y to 1.34+ 0.44 mSv/y, respectively. This study showed that the The doses obtained by our study are significantly below that recommended dose for all categories of water.