title: Moisture-resistant passive radon detectors.
abstract: In order to provide an area-monitoring passive radon detector that is resistant to very high humidities, passive detectors have been heat-sealed in 200 microm thick polyethylene. The sensitivity of the detectors in the bags to radon was found to be 83 +/- 2% of the sensitivity of detectors not encapsulated. These detectors have been shown to be resistant to the entry of water vapour for at least one month. The detectors have been used in practice for five years, and have proved to provide a robust method of measuring radon concentrations in areas with very high humidity.
authors.affiliation: Health Protection Agency, Chilton, Didcot, Oxfordshire OX11 0RQ, UK. jon.miles@hpa.org.uk
authors.forename: Jon
authors.initials: J
authors.lastname: Miles
authors.forename: Fero
authors.initials: F
authors.lastname: Ibrahimi
authors.forename: Keith
authors.initials: K
authors.lastname: Birch
mesh_terms: D004867:Equipment Design; D004868:Equipment Failure; D019544:Equipment Failure Analysis; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection / Q000295:instrumentation*; D011886:Radon / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014867:Water
chemical_list: D014867:Water; D011886:Radon