EXTERNAL GAMMA RADIATION MONITORING IN THE ENVIRONS OF KAIGA GENERATING STATION (KGS), USING THERMOLUMINESCENT DOSIMETERS, DURING THE PERIOD 1989-2003

摘要

This publication reports the results of external gamma radiation monitoring using Thermoluminescent Dosimeters (TLDs), in the environs of Kaiga Generating Station (KGS) during its preoperational survey between October 1989 and June 1998. The report also presents quarterly and annual values of air dose during the operational phase of the station between July 1998 and Dec. 2003 around the environment of KGS. The results of TLD analysis, during the period October 1989-June 1998, indicate that the average annual air dose for the locations monitored, was 502 + - 91 mu Gy/a. The general background. of the environs around Kaiga during the operational period, i.e. July 1998 and Dec. 2003, between 2.3 km. to 32 km. has been found to be 509 + - 74 mu Gy/a. The report discusses the methodology and different analyses carried out.