BACKGROUND RADIATION LEVEL MEASUREMENT IN DELTA STATE UNIVERSITY, CAMPUS III, ABRAKA, NIGERIA

Osiga-Aibangbee Damaris

Department of Science Laboratory Technology,

Delta State Polytechnic, Ozoro

Abstract

An in-situ measurement of the background radiation level was carried out at the Delta State University Campus III, Abraka. A portable Radiation levels monitor FS2011+ and ETREX Germin GPS was used for the measurement. A total of 22 points (11 outdoor and 11 indoor) was surveyed across the campus for background environmental radiation. The outdoor dose rate varies from 0.13µSv/hr to 0.25µSv/hr. For the indoor measurement, the minimum dose rate 0.12µSv/hr the maximum dose rate 0.23µSv/hr. It was noticed that the outdoor dose level was higher than the indoor dose level. The results show that the average outdoor and indoor point studied is 0.19µSv/hr and 0.12µSv/hr and this radiation level did not exceed the recommended limit of 1mSv/annum by International Commission on Radiation Protection which is still less than the ICRP limit value for non-occupational population exposure.

Keywords: Radiation, emission, indoor, outdoor, dose rate, study, exposure