Title: Standoff alpha radiation detection for hot cell imaging and crime scene investigation
Authors: KERST THOMASSAND JOHANIHANTOLA SAKARIPERÄJÄRVI K.NICHOLL ADRIANHRNECEK ERICHTOIVONEN H.TOIVONEN JUHA
Citation: OPTICAL REVIEW vol. 25 no. 3 p. 429–436
Publisher: OPTICAL SOC JAPAN
Publication Year: 2018
JRC N°: JRC112787
ISSN: 1340-6000
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC112787
DOI: 10.1007/s10043-018-0413-8
Type: Articles in periodicals and books
Abstract: This paper presents the remote detection of alpha contamination in a nuclear facility. Alpha-active material in a shielded nuclear radiation containment chamber has been localized by optical means. Furthermore, sources of radiation danger have been identified in a staged crime scene setting. For this purpose, an electron-multiplying charge-coupled device camera was used to capture photons generated by alpha-induced air scintillation (radioluminescence). The detected radioluminescence was superimposed with a regular photograph to reveal the origin of the light and thereby the alpha radioactive material. The experimental results show that standoff detection of alpha contamination is a viable tool in radiation threat detection. Furthermore, the radioluminescence spectrum in the air is spectrally analyzed. Possibilities of camera-based alpha threat detection under various background lighting conditions are discussed.
JRC Directorate:Nuclear Safety and Security

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