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Indoor Gamma Dose Rates In Kuwait Using Handheld Gamma-ray Spectrometer
1*Department of Applied Sciences, College of Technological Studies, Public Authority for Applied Education and Training, Shuwaikh, P.O. Box 42325, Code 70654, Kuwait.
Indoor gamma dose rates in Kuwait were measured using a sodium iodide (NaI) dosimeter/spectrometer. Results indicate low indoor radiation levels, falling within the normal range for public health.
Area of Science:
- Environmental radioactivity
- Radiation protection
- Nuclear instrumentation
Background:
- Indoor gamma radiation exposure is a significant component of public radiation dose.
- Understanding regional indoor dose rates is crucial for assessing potential health risks.
- Kuwait's indoor radiation environment has not been extensively surveyed.
Purpose of the Study:
- To conduct a comprehensive survey of indoor gamma dose rates across Kuwait.
- To determine the typical range and average indoor gamma dose rates in dwellings.
- To analyze the contribution of natural radionuclides (K, Bi, Tl, Cs) to indoor gamma radiation.
Main Methods:
- Utilized a sodium iodide (NaI) dosimeter/spectrometer for measurements.
- Conducted surveys in 200 Kuwaiti dwellings, covering 244 distinct locations (halls, rooms, basements, kitchens).
- Acquired gamma-ray spectra to identify radionuclide contributions and assess radiation sources.
Main Results:
- Indoor gamma dose rates ranged from 39.3 to 103.3 nanosecies per hour (nSv h).
- The average indoor gamma dose rate was determined to be 70.6 nSv h.
- Analysis confirmed the presence of natural radionuclides (K, Bi, Tl) with no significant indication of Cesium (Cs).
Conclusions:
- The surveyed indoor gamma dose rates in Kuwait are generally low.
- Measured levels are within the normal range, suggesting no immediate public health concern from indoor gamma radiation.
- The study provides baseline data for future environmental radioactivity monitoring in Kuwait.
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