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Published on: July 25, 2014
Calibration of diffusion barrier charcoal detectors using a semi-empirical expression
M E Montero Cabrera1, L Colmenero Sujo, L Villalba
1Centro de Investigacion en Materiales Avanzados, SC, Complejo Industrial Chihuahua, Miguel de Cervantes 120, Chihuahua,Chih 31109, Mexico. elena.montero@comiv.edu.mx
Summary
This study calibrated diffusion barrier charcoal canister (DBCC) detectors for accurate radon concentration measurement. Functions and graphs were developed to relate radon levels to adsorbed activity, improving detector calibration methods.
Area of Science:
- Environmental Science
- Radiological Health
- Analytical Chemistry
Background:
- Radon concentration monitoring is crucial for public health and safety.
- Diffusion barrier charcoal canister (DBCC) detectors are commonly used for radon measurement.
- Accurate calibration of DBCC detectors is essential for reliable radon concentration data.
Purpose of the Study:
- To investigate various calibration settings for DBCC detectors.
- To establish relationships between air radon concentration and adsorbed activity in DBCC detectors.
- To develop a semi-empirical expression for improved DBCC detector calibration.
Main Methods:
- Studied multiple calibration settings for DBCC detectors.
- Developed functions and graphs to correlate radon concentration with adsorbed activity.
- Determined integration time and radon adsorption coefficient for activated charcoal.
- Applied a semi-empirical expression for detector calibration.
Main Results:
- Established clear relationships between radon concentration and adsorbed activity in DBCC detectors.
- Quantified the integration time for 10% of DBCC batch adsorption.
- Determined the radon adsorption coefficient of the activated charcoal.
- Successfully applied a semi-empirical model for detector calibration.
Conclusions:
- The developed functions and graphs provide a reliable method for DBCC detector calibration.
- The determined parameters enhance the accuracy of radon concentration measurements using DBCC detectors.
- The semi-empirical expression offers a practical approach for calibrating these detectors in various settings.
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