ASSESSMENT OF RADIATION DOSE LEVEL AT KABBA COLLEGE OF AGRICULTURE, DIVISION OF AGRICULTURAL COLLEGES, AHMADU BELLO UNIVERSITY, ZARIA

I A Bello,N Kure,O O Ige,A H Momoh

doi:10.33003/fjs-2021-0501-599

Abstract

Background radiation involves the measure of the level of ionizing radiation present in the environment at a particular location. This research seek to generate data of the natural background radiation level of some selected Sections at Kabba College of Agriculture, using RadEye G20 survey meter. A total of 15 sections of the College were randomly selected and the background radiation dose rate of the sections were measured. The indoor dose rate ranged from (0.09 – 0.13) 𝜇Sv/yr, while the outdoor dose rate ranged from (0.07 - 0.10) 𝜇Sv/yr. The indoor annual effective dose were observed to be greater than the outdoor annual effective dose in all the College Sections measured. The lowest total annual effective dose 0.75 𝑚𝑆𝑣/𝑦𝑟 was found at the Academic staff block. The highest total annual effective dose of 1.09 𝑚𝑆𝑣/𝑦𝑟 was found at the livestock building, this might be due to the high-altitude nature of the area and the rocky materials used in the construction of the building. The highest total annual effective dose of the study area was slightly above the recommended limit of 1.0 𝑚𝑆𝑣/𝑦𝑟. The result obtained from this research may not constitute immediate health risk to the staff and student of the college

Highlights

Background radiation involves the measurement of ionizing radiation present in the environment at a particular location
Indoor dose rate depends upon the existence of natural radioactivity in the underlying soil or rock used for building
The natural background radiation level at Kabba College of Agriculture was carried out using radiation survey meter

Summary

INTRODUCTION

Background radiation involves the measurement of ionizing radiation present in the environment at a particular location. The radiation around us, has been in existence since the creation of earth It varies from different location and times. The natural background radiation level at Kabba College of Agriculture was carried out using radiation survey meter. This is the first time of conducting this type of research and it will be of benefit to the staff and student of the college, for reference purpose. Due to high farm practice, settlement and increase in population of the college, there is need to determine the radiation dose level of the college. MATERIAL AND METHOD The background radiation measurement of the study area was conducted randomly, using a high sensitive survey meter (RedEye G20).

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