Optical detection of radon decay in air.

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 Rep

journal_title

Scientific reports

authors

Sand J,Ihantola S,Peräjärvi K,Toivonen H,Toivonen J

doi

10.1038/srep21532

subject

Has Abstract

pub_date

2016-02-12 00:00:00

pages

21532

issn

2045-2322

pii

srep21532

journal_volume

6

pub_type

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