Measurement of Indoor Terrestrial Gamma Radiation Dose and Evaluation of Annual Effective Dose at AECD Campus, Dhaka, Bangladesh

2017 ◽  
Author(s):  
Shahadat Hossain ◽  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Effective Dose ◽  
Annual Effective Dose ◽  
Gamma Radiation Dose

scholarly journals Real-Time Environmental Gamma Radiation Dose Rate Measurement around Major Nuclear and Radiological Facilities in Bangladesh

2018 ◽  
Vol 6 (03) ◽  
Author(s):  
Sidratul Moontaha ◽  
Dr. Mohammad Sohelur Rahman ◽  
Dr. Md. Shafiqul Islam ◽  
Selina Yeasmin
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Effective Dose ◽  
Dose Rate ◽  
Real Time ◽  
Annual Effective Dose ◽  
Radiation Monitoring ◽  
Monitoring Device ◽  
Dose Rates ◽  
Gamma Radiation Dose

Background: In this study, outdoor environmental gamma radiation dose rates were measured at area of Shahbag Thana under Dhaka city and Atomic Energy Research Establishment (AERE) Campus at Savar. Aim of the study: This kind of study is required to detect the presence of natural and artificial radionuclides (if any) releasing from nuclear and radiological facilities in the country or from neighbouring countries. Materials and Methods: The measurement was performed using a real-time portable radiation monitoring device from August-November 2017. The real-time portable radiation monitoring device was placed on tripod at 1 meter above the ground and data acquisition time for each monitoring point (MP) was 1 hour. Total 34 MP were selected around major nuclear and radiological facilities in Bangladesh for collection of dose rate due to gamma-ray. The MPs were marked-out using Global Positioning System (GPS) navigation. The GPS reading of the sampling locations were varied from E90º23'40.08" to E90º24'32.82" and from N23º44'58.62" to N23º43'26.58" for Shahbag Thana and from E90º16'26.58" to E90º16'50.52" and from N23º57'12.96" to N23º57'6.12" for AERE Campus, Savar. Results: The measured dose rates due to natural radionuclides were ranged from 0.105 ± 0.036056 μSv.h-1 to 0.208065 ± 0.106377μSv.h-1 with an average of 0.141568 ± 0.046995 μSv.h-1. The annual effective dose to the population from outdoor environmental gamma radiation was varied from 0.128772 ± 0.044218 mSv to 0.25517 ± 0.130461 mSv and the mean was found to be 0.17362± 0.057635 mSv. This value is lower than some countries like India, China, Sweden, Italy and Czech Republic; and higher than Canada, Mexico, Indonesia, Korea, Turkey, Finland, Spain and some other countries. Conclusion: From this study, it was observed that there is no burden of population exposure due to man-made sources. Therefore, it can be concluded that adequate safety and radiation protection of nuclear & radiological facilities had been ensured which is required for minimizing of unnecessary exposure to populations from man-made sources. The estimated mean annual effective dose found in this study is not expected to contribute significant additional hazard from the radiological health point of view.

ASSESSMENT OF INDOOR RADIATION DOSE RECEIVED BY THE RESIDENTS OF NATURAL HIGH BACKGROUND RADIATION AREAS OF COASTAL VILLAGES OF KANYAKUMARI DISTRICT, TAMIL NADU, INDIA

2015 ◽  
Vol 1 (01) ◽  
pp. 01-05
Author(s):  
R.Ragel Mabel Saroja
Keyword(s):  
Solid State ◽  
Radiation Dose ◽  
Gamma Radiation ◽  
Radiation Exposure ◽  
Effective Dose ◽  
Tamil Nadu ◽  
Background Radiation ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
High Background

Radiation exposure and effective dose received through two routes of exposure, viz. external and internal, via inhalation, by residents of coastal villages belonging to Natural High Background Radiation Areas (NHBRA) of Kanyakumari District and Tamil Nadu inIndiawere studied. While the indoor gamma radiation levels were monitored using Thermo Luminescent Dosimeters (TLDs), the indoor radon and thoron gas concentrations were measured using twin chamber dosimeters employing Solid State Nuclear Track Detectors (SSNTDs, LR-115-II). The average total annual effective dose was estimated and found to be varied from 2.37 to8.64 mSv.

scholarly journals Health Risk Implications of Terrestrial Gamma Radiation Dose Rate in Central Jakarta, Indonesia: Short Communications

2017 ◽  
Vol 9 (12) ◽  
pp. 19
Author(s):  
Nursama Heru Apriantoro ◽  
Muzilman Muslim ◽  
Dadong Iskandar ◽  
. Purwantiningsih ◽  
Witri Mulyani ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Annual Effective Dose ◽  
Rate Measurement ◽  
Radiation Dose Rate ◽  
Average Value ◽  
Effective Dose Rate ◽  
Gamma Radiation Dose ◽  
Annual Effective Dose Rate

Terrestrial gamma radiation dose (TGRD) rate measurement has been conducted around downtown region of Central Jakarta Indonesia. The real time count data was taken 1 m above the ground in eight sub district locations by using a portable gamma Surveymeter of Exploranium GR-135 Plus Model. The reading position was detemined using  Garmin GPSMAP 62s. The average value of TGRD rate of  (47.76 ± 18.24) nSv h-1 ranged from 6.40 nSv h-1 to 120.90 nSv-1, it is higher than Indonesia. The annual effective dose rate of 0.058 mSv. Its  contributes to fatal cancer risk of about  3.22 x 10-5 per year for each individual in Central Jakarta. For the subdistrict TGRD rate value was variated, however all the result is not high enough to cause for alarm.

Optimization of gamma radiation dose for induction of mutations in okra

2021 ◽  
pp. 1-11
Author(s):  
Soham Hazra ◽  
Shouvik Gorai ◽  
V Umesh Kumar ◽  
Sudip Bhattacharya ◽  
Anirban Maji ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Gamma Radiation Dose

scholarly journals Terrestrial Gamma Radiation Dose Rate of West Sarawak

2017 ◽  
Vol 156 ◽  
pp. 00006
Author(s):  
A. Izham ◽  
A.T. Ramli ◽  
W.M. Saridan Wan Hassan ◽  
H.N. Idris ◽  
N.A. Basri
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Dose Rate ◽  
Radiation Dose Rate ◽  
Gamma Radiation Dose

Calculations of Background Beta-Gamma Radiation Dose Through Geologic Time

1999 ◽  
Vol 77 (6) ◽  
pp. 662-667 ◽  
Author(s):  
P. Andrew Karam ◽  
Stephen A. Leslie
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Geologic Time ◽  
Gamma Radiation Dose

Terrestrial Gamma Radiation Dose in Hong Kong

1992 ◽  
Vol 62 (1) ◽  
pp. 77-81 ◽  
Author(s):  
Man-Yin W. Tso ◽  
Chung-Chum Li
Keyword(s):  
Hong Kong ◽  
Radiation Dose ◽  
Gamma Radiation ◽  
Gamma Radiation Dose
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