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Monitoring of 222Rn in Taiwanese hot spring spa waters using a modified electret ion chamber method
1Institute of Nuclear Science, National Tsing Hua University, Hsinchu, Taiwan, R.O.C.
Health Physics
|January 1, 1995
Summary
Radon-222 concentrations in Taiwanese hot springs were measured using electret ion chambers (EIC). Improved accuracy was achieved by using two EIC units and voltage-dependent correction factors to account for gamma radiation.
Area of Science:
- Environmental Science
- Radiological Health
- Geochemistry
Background:
- Hot springs are potential sources of naturally occurring radioactive materials.
- Radon-222 (222Rn) is a radioactive gas that can accumulate in enclosed spaces.
- Accurate monitoring of 222Rn is crucial for assessing potential health risks.
Purpose of the Study:
- To monitor 222Rn concentrations in Taiwanese hot spring spa waters.
- To evaluate the effectiveness of electret ion chambers (EIC) for 222Rn measurement.
- To improve the accuracy of 222Rn measurements by addressing gamma contributions.
Main Methods:
- Utilized commercially available electret ion chambers (EIC) for 222Rn monitoring.
- Employed two EIC units to measure radon concentrations in the air phase.
- Applied voltage-dependent correction factors to subtract gamma contributions.
Main Results:
- Successfully monitored 222Rn concentrations in Taiwanese hot spring spa waters.
- Demonstrated improved accuracy in 222Rn measurements using the described EIC methodology.
- Quantified the impact of gamma radiation on EIC measurements and applied corrections.
Conclusions:
- Electret ion chambers (EIC) are suitable for monitoring 222Rn in hot spring environments.
- The dual EIC unit approach combined with gamma correction enhances measurement precision.
- Findings contribute to better radiological risk assessment in Taiwanese hot springs.