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Irlinger, J. ; Wielunski, M. ; Rühm, W.

Thoron detection with an active Radon exposure meter - first results.

Rev. Sci. Instruments 85:022106 (2014)
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For state-of-the-art discrimination of Radon and Thoron several measurement techniques can be used, such as active sampling, electrostatic collection, delayed coincidence method, and alpha-particle-spectroscopy. However, most of the devices available are bulky and show high power consumption, rendering them unfeasible for personal exposition monitoring. Based on a Radon exposure meter previously realized at the Helmholtz Center Munich (HMGU), a new electronic prototype for Radon/Thoron monitoring is currently being developed, which features small size and weight. Operating with pin-diode detectors, the low-power passive-sampling device can be used for continuous concentration measurements, employing alpha-particle-spectroscopy and coincidence event registration to distinguish decays originating either from Radon or Thoron isotopes and their decay products. In open geometry, preliminary calibration measurements suggest that one count per hour is produced by a 11 Bq m(-3) Radon atmosphere or by a 15 Bq m(-3) Thoron atmosphere. Future efforts will concentrate on measurements in mixed Radon/Thoron atmospheres.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Lung-cancer; Issue; Risk
Language english
Publication Year 2014
HGF-reported in Year 2014
ISSN (print) / ISBN 0034-6748
e-ISSN 1089-7623
Journal Review of Scientific Instruments
Quellenangaben Volume: 85, Issue: 2, Pages: , Article Number: 022106 Supplement: ,
Publisher American Institute of Physics (AIP)
Publishing Place Melville
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)
POF-Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s) Radiation Sciences
PSP Element(s) G-501100-002
G-501100-001
PubMed ID 24593342
DOI 10.1063/1.4865162
WOS ID WOS:000335919900241
Scopus ID 84894595678
Erfassungsdatum 2014-03-26
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