TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Optical detection of radon decay in air

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Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli21532
JulkaisuScientific Reports
Vuosikerta6
DOI - pysyväislinkit
TilaJulkaistu - 12 helmikuuta 2016
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

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.

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