Measurement of Indoor Terrestrial Gamma Radiation Dose and Evaluation of Annual Effective Dose at AECD Campus, Dhaka, Bangladesh
Journal Title: International Journal of Scientific Research and Management - Year 2017, Vol 5, Issue 3
Abstract
Background : In this study, indoor terrestrial gamma radiation dose rates were measured at the Atomic Energy Centre Dhaka (AECD) Campus within Dhaka University area in Shahbag Thana of Dhaka, Bangladesh. Aim of the study : This kind of study is required to detect the presence of natural and artificial radionuclides (if any) releasing from nuclear facilities in the country or from neighbouring countries. Materials and Methods: The measurement was performed using a portable H igh Purity Germanium (HPGe) detector (Model No. GEM25P4 - 83). The portable HPGe detector was placed at 1 meter above the ground facing downward and data acquisition time for each monitoring point (MP) was 10,000 sec. Total 21 monitoring points (MP) were sel ected for collection of gamma - ray spectrum in the indoor environment at the AECD Campus. The MPs were marked - out using Global Positioning System (GPS) navigation. The GPS reading of the sampling locations were varied from E: 90o23'42'' — 90o23'47.4'' and N : 23o43'49.8'' — 23o43'53.4''. Results: The measured dose rates due to natural radionuclides were ranged from 0.373 μGy.h - 1 to 0.646 μGy.h - 1 with an average of 0.494 ± 0.0682 μGy.h - 1. The annual effective dose to the population from indoor terrestrial gamm a radiation was varied from 1.83 to 3.17 mSv. Conclusion: The range of dose rate and annual effective dose due to indoor terrestrial gamma radiation is lower than some European Countries like Italy, Sweden and Czech Republic and higher than India, Iran and Azerbaijan. It was observed that ground floor dose rate is slightly higher than first floor dose rate because accumulation from radon gas near ground surface contributes to the higher gamma absorbed dose rat e
Authors and Affiliations
Shahadat Hossain
Keywords
Related Articles
- EP ID EP312834
- DOI -
- Views 60
- Downloads 0
An Exploratory Study Of Work Life Balance Emanates And Work Satisfaction In Ericsson Company - Chennai City
In terms of Indi an perspective, the anxiety over work - life balance is progressively becoming a common talk especially for telecom employees. Work life balance is condition of equilibrium in which the demand of bo...
Globalisation's impact on the G lobal Public Goods & Public Bad : An Economics view on the EBOLA outbreak
A trend called globalization, which started at the early onset of this century, has increased interdependency among international nations. This interdependency has both negative as well as positive effects....
Comparative Analysis Of The Benefits Of The Nigerian Pension Act No. 102 Of 1979 And The Pension Reform Act Of 2004
The history of pensions in Nigeria started with the 1951 Pensions Ordinance. Between that time and 2004, several types of Pension schemes were legislated or decreed into law by successive governments. In 1979, the the...
Moderating Influence of Information Technology Capability on Physical Evidence and Customer Patronage Of Banks In Nigeria
The purpose of this study was to assess the impact of information technology capability of bankson customer patronage of quoted Banks in south - south zone of Nigeria. The study populationwere...
Method Development a nd Validation o f Simultaneous Estimation o f Pseudoephedrine Ambroxol Deslo ratadine in Tablet Dosage Form a nd Degradation Studies By Rp - Hplc Method
Method Development a nd Validation o f Simultaneous Estimation o f Pseudoephedrine Ambroxol Deslo ratadine in Tablet Dosage Form a nd Degradation Studies By Rp - Hplc Method A simple, Accurate, precise method was develop...