Optically stimulated luminescence in forensics
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Updated: Aug 16, 2026

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
Published on: December 16, 2019
Carey Larsson1, Vern Koslowsky, Henry Gao
1Defence Research and Development Canada, Ottawa, Ontario, Canada K1A 0Z4. carey.larsson@drdc-rddc.gc.ca
Abstract:
Tracking the former location of a radioactive source represents an attractive attribute in today's society, where the threat of a radiological dispersal device (RDD) is considered high. Development of a novel, retrospective detection technique based on optically stimulated luminescence is underway. This will allow confirmation of the former location of a radioactive source. Materials near the source's former location may be probed for information on accumulated dose by taking advantage of radiation-induced charge trapping that occurs in many common materials. The prototype detector design and analysis techniques are described.
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