Academic Journal
Radon chamber functionality: the impact of ventilation rate measurement on the reliability of radon metrology.
| Title: | Radon chamber functionality: the impact of ventilation rate measurement on the reliability of radon metrology. |
|---|---|
| Authors: | Abo-Elmagd M; National Institute of Standard, Ionizing Radiation Metrology Lab., P. O. Box 136 Giza code no. 12211, Egypt. Electronic address: mahmoud.aboelmagd@nis.sci.eg., Kassem FA; National Institute of Standard, Volume and Fluid Flow Metrology Lab., P. O. Box 136 Giza code no. 12211, Egypt. Electronic address: fatma.abdelmordy@nis.sci.eg. |
| Source: | Journal of environmental radioactivity [J Environ Radioact] 2026 Aug; Vol. 298, pp. 108091. Date of Electronic Publication: 2026 Jul 01. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8508119 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1700 (Electronic) Linking ISSN: 0265931X NLM ISO Abbreviation: J Environ Radioact Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Barking, Essex : Elsevier Applied Science Publishers |
| MeSH Terms: | Radon*/analysis , Air Pollution, Radioactive*/analysis , Air Pollution, Indoor*/analysis , Radiation Monitoring*/instrumentation , Radiation Monitoring*/methods, Ventilation ; Reproducibility of Results |
| Abstract: | Radon is the only naturally occurring radioactive gas. Due to its health risk, there is an increasing interest in measuring radon levels in residential, workplace, outdoor, and laboratory environments. In radon laboratories, radon chambers as a controlled environment are used for calibrating radon sources, measuring instruments, and evaluating radon-related parameters in environmental samples. Accurate radon measurement within radon chambers is frequently compromised by uncontrolled removal processes like ventilation rate (or leakage rate) and back diffusion, which affect the reliability of radon metrology. This study aims to evaluate the performance of a medium-sized radon chamber, with a particular focus on the critical importance of measuring its ventilation rate to enhance the accuracy of measurements and calibration conducted within it. A hybrid methodology was used, combining Computational Fluid Dynamics (CFD) for modelling ventilation rates with experimental methods, such as the tracer CO (Copyright © 2026 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: CO(2) concentration; Computational fluid dynamics; Radon chambers; Radon metrology; Ventilation rate |
| Substance Nomenclature: | Q74S4N8N1G (Radon) |
| Entry Date(s): | Date Created: 20260701 Date Completed: 20260828 Latest Revision: 20260828 |
| Update Code: | 20260829 |
| DOI: | 10.1016/j.jenvrad.2026.108091 |
| PMID: | 42385466 |
| Database: | MEDLINE |
| ISSN: | 1879-1700 |
|---|---|
| DOI: | 10.1016/j.jenvrad.2026.108091 |