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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
Abstract:
Several calibration settings of diffusion barrier charcoal canister (DBCC) detectors for measuring radon concentration in air were studied. A set of functions and graphs were developed for relations between radon concentration in air and adsorbed activity in DBCC, when calibrated in small chambers. Both the integration time for 10% of DBCC of a batch, and the radon adsorption coefficient for the activated charcoal used in these detectors, were determined. Thus, a semi-empirical expression for detector calibration was applied.
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