Abstract:
:An optical radon detection method is presented. Radon decay is directly measured by observing the secondary radiolumines cence light that alpha particles excite in air, and the selectivity of coincident photon detection is further enhanced with online pulse-shape analysis. The sensitivity of a demonstration device was 6.5 cps/Bq/l and the minimum detectable concentration was 12 Bq/m(3) with a 1 h integration time. The presented technique paves the way for optical approaches in rapid radon detec tion, and it can be applied beyond radon to the analysis of any alpha-active sample which can be placed in the measurement chamber.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Sand J,Ihantola S,Peräjärvi K,Toivonen H,Toivonen Jdoi
10.1038/srep21532subject
Has Abstractpub_date
2016-02-12 00:00:00pages
21532issn
2045-2322pii
srep21532journal_volume
6pub_type
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