Next Article in Journal
Lifestyle Risk Factors and All-Cause and Cardiovascular Disease Mortality: Data from the Korean Longitudinal Study of Aging
Previous Article in Journal
Validity of Wrist-Worn Activity Trackers for Estimating VO2max and Energy Expenditure
Open AccessArticle

Testing and Calibration of CDs as Radon Detectors at Highly Variable Radon Concentrations and Temperatures

1
Faculty of Physics, “St. Kliment Ohridski”, Sofia University, 1164 Sofia, Bulgaria
2
Radon Group, University of Cantabria, 39005 Santander, Cantabria, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(17), 3038; https://doi.org/10.3390/ijerph16173038
Received: 23 July 2019 / Revised: 18 August 2019 / Accepted: 20 August 2019 / Published: 22 August 2019
(This article belongs to the Special Issue Radon Risk and Metrology)
The application of the compact disk (CD) method for radon measurements at mines, caves and other workplaces needs testing under highly variable exposure conditions. We present the results from a blind comparison of CDs exposed in the Laboratory of Natural Radiation (Saelices el Chico, Spain). During the exposure the temperature varied from 6.5 to 24.9 °C (average 12.6 °C) and the 222Rn activity concentrations varied from <10 Bq m−3 to 147 kBq m−3. Good correspondence was observed between the integrated 222Rn activity concentration determined by the reference instruments in the laboratory (122,500 ± 6100 kBq h m−3) and that assessed by analysis of the CDs at a depth 80 µm beneath the front surface (118,000 ± 12,000 kBq h m−3) and at a depth of 120 µm (106,000 ± 12,000 kBq h m−3). The theoretical modeling of the CD response under variable temperature and radon concentration suggested that the small bias is probably due to the time variation of the calibration factor because of the time variations of the temperature. View Full-Text
Keywords: radon; CD-method; blind comparison; extremely variable concentrations; unstable temperature radon; CD-method; blind comparison; extremely variable concentrations; unstable temperature
Show Figures

Figure 1

MDPI and ACS Style

Pressyanov, D.; Quindos Poncela, L.S.; Georgiev, S.; Dimitrova, I.; Mitev, K.; Sainz, C.; Fuente, I.; Rabago, D. Testing and Calibration of CDs as Radon Detectors at Highly Variable Radon Concentrations and Temperatures. Int. J. Environ. Res. Public Health 2019, 16, 3038.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop