Radiological risk assessment of fuel fabrication facility at Al- Tuwaitha nuclear site | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 14, Issue 31, December 2016, Pages 99-107 | ||
| Authors | ||
| Yousif M. Zayir Al-Bakhat; Altaf Abdul Majeed Salman; Zainab M. Jbara | ||
| Abstract | ||
| The specific activity of 29 soil samples collected from Fuel Fabrication Facility FFF at AL-Tuwaitha site, 20 km south of Baghdad were determined using HPGe detector in a low background configuration, it's relative efficiency of 40%,and resolution of 2keV for the 1332 keV gamma ray emission of 60Co. The range of activity concentrations of 226Ra, 232Th and 40K were between (12.56-31.96), (10.2-18.4) and (47.47-402.1) Bq/kg respectively. In order to assess any radiological hazard to human health, the absorbed gamma dose rate D in air at 1m above the ground surface was calculated in the range (18.87 to 36.46) nGy/h; the outdoor annual effective dose equivalent AEDE was evaluated to vary from 0.0039 to 0.0076 mSv/y with the mean value 0.0059 mSv/y, this value comparable to the worldwide effective dose 0.48mSv/y.The Radium Equivalent Raeq for all samples were evaluated and were lower than the accepted safety limit value of 370 Bq/kg.The results indicated that the radiation of hazards from primordial radionudlides in all samples in this study is not significant. Raeq activities, Annual effective dose, External hazard index. | ||
| Keywords | ||
| The specific activity of; Tuwaitha site; km south of Baghdad were determined using HPGe detector in a low background configuration; s relative efficiency of; and resolution of; The range of activity concentrations of; Th and; and; kg respectively; In order to assess any radiological hazard to human health; the absorbed gamma dose rate D in air at; nGy; the outdoor annual effective dose equivalent AEDE was evaluated to vary from; mSv; this value comparable to the worldwide effective dose; The Radium Equivalent Raeq for all samples were evaluated and were lower than the accepted safety limit value of; The results indicated that the radiation of hazards from primordial radionudlides in all samples in this study is not significant; Raeq activities; annual effective dose; External hazard index | ||
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