Evaluation of Radiation Exposure Rate and Determination of Excess Life Time Cancer Risk in Lecture Halls in Niger Delta University, Bayelsa State Nigeria

Ogobiri E. Godwin, Anyalebechi Onyebuchi and Godwill Ziriki
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Ogobiri E. Godwin: Physics Department, Niger Delta University, Bayelsa State, Nigeria
Anyalebechi Onyebuchi: Physics Department, University of Port Harcourt, Rivers State, Nigeria
Godwill Ziriki: Bayelsa Medical University, Bayelsa State, Nigeria

International Journal of Research and Innovation in Applied Science, 2023, vol. 8, issue 3, 130-134

Abstract: The radiation exposure rate (ER) in lecture halls in Niger Delta University (NDU) Bayelsa State Nigeria has been evaluated and the excess lifetime cancer risk (ELCR) determined, including the corresponding annual effective dose equivalent (AEDE). The exposure rate was measured using Radalert 100XTM Device which uses a Geiger muller tube to detect radiation in the Four (4) Lecture Halls in the university. The highest average indoor ADR, AEDE and ELCR of: 463.280nGy/h, 2.270msv/y and 7.900×10-3 respectively were reported in Hall 1 code named LH1. Comparatively Hall 4 (LH4) had the lowest values of ADR 226.20nGy/h, AEDE 1.110msv/y and ELCR 3.880 x 10-3. The organ evaluation shows the teste with reported value of 1.490msv/y and the ovaries 0.570msv/y. These values are higher than the world average as submitted.

Date: 2023
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