Is thoron a problem in radon measurements with NRPB/SSI passive radon detectors—experimental study

J. M. Wasikiewicz; I. Dimitrova; Z. F. Ibrahimi; S. Georgiev; K. Mitev; Z. Daraktchieva

doi:10.1093/rpd/ncaf012

Is thoron a problem in radon measurements with NRPB/SSI passive radon detectors—experimental study

J. M. Wasikiewicz^*, I. Dimitrova, Z. F. Ibrahimi, S. Georgiev, K. Mitev, Z. Daraktchieva

^*Corresponding author for this work

Radon Studies Group

Research output: Contribution to journal › Article › peer-review

Abstract

The UKHSA radon detectors with polyallyldiglycol carbonate sensing material produced from 2010 onward were used to confirm that they are purely radon detectors only with negligible interference from thoron presence. The statistical analysis of results, after following standard detector processing procedures, showed that such devices can only detect 2.4% ± 0.3% of the total thoron activity concentration compared to the calibrated reference device. It was also demonstrated that thoron, unlike radon, can only travel a very short distance from the source to be effectively measured. Based on the above, it has been concluded that interference of thoron in radon measurement is negligible (within the statistical measurement error), and hence can be ignored in standard indoor and outdoor measurements.

Original language	English
Pages (from-to)	314-320
Number of pages	7
Journal	Radiation Protection Dosimetry
Volume	201
Issue number	4
DOIs	https://doi.org/10.1093/rpd/ncaf012
Publication status	Published - 1 Mar 2025

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abstract = "The UKHSA radon detectors with polyallyldiglycol carbonate sensing material produced from 2010 onward were used to confirm that they are purely radon detectors only with negligible interference from thoron presence. The statistical analysis of results, after following standard detector processing procedures, showed that such devices can only detect 2.4% ± 0.3% of the total thoron activity concentration compared to the calibrated reference device. It was also demonstrated that thoron, unlike radon, can only travel a very short distance from the source to be effectively measured. Based on the above, it has been concluded that interference of thoron in radon measurement is negligible (within the statistical measurement error), and hence can be ignored in standard indoor and outdoor measurements.",

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AU - Wasikiewicz, J. M.

AU - Dimitrova, I.

AU - Ibrahimi, Z. F.

AU - Georgiev, S.

AU - Mitev, K.

AU - Daraktchieva, Z.

PY - 2025/3/1

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N2 - The UKHSA radon detectors with polyallyldiglycol carbonate sensing material produced from 2010 onward were used to confirm that they are purely radon detectors only with negligible interference from thoron presence. The statistical analysis of results, after following standard detector processing procedures, showed that such devices can only detect 2.4% ± 0.3% of the total thoron activity concentration compared to the calibrated reference device. It was also demonstrated that thoron, unlike radon, can only travel a very short distance from the source to be effectively measured. Based on the above, it has been concluded that interference of thoron in radon measurement is negligible (within the statistical measurement error), and hence can be ignored in standard indoor and outdoor measurements.

AB - The UKHSA radon detectors with polyallyldiglycol carbonate sensing material produced from 2010 onward were used to confirm that they are purely radon detectors only with negligible interference from thoron presence. The statistical analysis of results, after following standard detector processing procedures, showed that such devices can only detect 2.4% ± 0.3% of the total thoron activity concentration compared to the calibrated reference device. It was also demonstrated that thoron, unlike radon, can only travel a very short distance from the source to be effectively measured. Based on the above, it has been concluded that interference of thoron in radon measurement is negligible (within the statistical measurement error), and hence can be ignored in standard indoor and outdoor measurements.

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Is thoron a problem in radon measurements with NRPB/SSI passive radon detectors—experimental study

Abstract

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