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 52
- Downloads 0
Stabilization of Nigerian Deltaic Laterites with Saw Dust Ash
Soil improvement potential of saw dust ash was studied with regards to compaction and CBR characteristics of a deltaic laterite. The physical properties and engineering characteristics studied include the...
A Stud y on Risk and Return Analysis o f Selected Stocks in India
Risk and return analysis plays a key role in most individual decision making process. Every investor wants to avoid risk and maximize return. In general, risk and return go hand. If an investor wishes to earn higher ret...
A Study on Role and Applications of ICT in Development of Rural Areas
India is an extremely diverse country with a number of disparities and divides and rural - urban divide is on eamong many such divides. About 68% of Indian population live in rural areas and is dependent mostly o n a str...
Impact Of Forensic Account ing On Fraud Control In Nigeria ( A Case Study Of Nigerian Deposit Insurance Corporation (NDIC )
n recent time, fraud has formed an integral part of developing countries like Nigeria where corruption through its indices like money laundering, over pricing and compromise of procurement pro...
A study on Long - term orientation, Self - Efficacy and Self - derogation of Kudumbashree members with special reference to Self Help Group in Kerala
In the amount of post Indian Independence, the govt. developed the community development programmers specializing in socio - economic and political management of the folks. Without considering the...