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

Author

Listed:
  • Dobromir Pressyanov

    (Faculty of Physics, “St. Kliment Ohridski”, Sofia University, 1164 Sofia, Bulgaria)

  • Luis Santiago Quindos Poncela

    (Radon Group, University of Cantabria, 39005 Santander, Cantabria, Spain)

  • Strahil Georgiev

    (Faculty of Physics, “St. Kliment Ohridski”, Sofia University, 1164 Sofia, Bulgaria)

  • Ivelina Dimitrova

    (Faculty of Physics, “St. Kliment Ohridski”, Sofia University, 1164 Sofia, Bulgaria)

  • Krasimir Mitev

    (Faculty of Physics, “St. Kliment Ohridski”, Sofia University, 1164 Sofia, Bulgaria)

  • Carlos Sainz

    (Radon Group, University of Cantabria, 39005 Santander, Cantabria, Spain)

  • Ismael Fuente

    (Radon Group, University of Cantabria, 39005 Santander, Cantabria, Spain)

  • Daniel Rabago

    (Radon Group, University of Cantabria, 39005 Santander, Cantabria, Spain)

Abstract

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 222 Rn activity concentrations varied from <10 Bq m −3 to 147 kBq m −3 . Good correspondence was observed between the integrated 222 Rn 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.

Suggested Citation

  • Dobromir Pressyanov & Luis Santiago Quindos Poncela & Strahil Georgiev & Ivelina Dimitrova & Krasimir Mitev & Carlos Sainz & Ismael Fuente & Daniel Rabago, 2019. "Testing and Calibration of CDs as Radon Detectors at Highly Variable Radon Concentrations and Temperatures," IJERPH, MDPI, vol. 16(17), pages 1-9, August.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:17:p:3038-:d:259790
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    Cited by:

    1. Daniel Rabago & Ismael Fuente & Santiago Celaya & Alicia Fernandez & Enrique Fernandez & Jorge Quindos & Ricardo Pol & Giorgia Cinelli & Luis Quindos & Carlos Sainz, 2020. "Intercomparison of Indoor Radon Measurements Under Field Conditions In the Framework of MetroRADON European Project," IJERPH, MDPI, vol. 17(5), pages 1-13, March.

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