Evaluation of novel gamma ray imaging technology

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dc.contributor.authorGuenette, MCen_AU
dc.contributor.authorBoardman, DAen_AU
dc.contributor.authorSarbutt, Aen_AU
dc.contributor.authorFlynn, Aen_AU
dc.contributor.authorProkopovich, DAen_AU
dc.date.accessioned2022-05-05T02:00:46Zen_AU
dc.date.available2022-05-05T02:00:46Zen_AU
dc.date.issued2017-08-09en_AU
dc.date.statistics2022-04-22en_AU
dc.description.abstractWe present the imaging results from a novel single pixel gamma-ray imaging system, developed at ANSTO, which is capable of providing quantitative, spectroscopic gamma images using a fast and efficient imaging methodology. Gamma ray imaging can assist in surveying active areas by providing information of the radiation environment in areas which are hard to reach (e.g. in enclosed spaces or at height) and by gaining valuable information about the radiation environment whist limiting exposure to personnel in high dose rate environments. The system design provides a large field of view (360° × 70°) and covers a wide energy range of 40 keV to 1.5 MeV. The gamma ray image is overlaid on a 360° panoramic optical image of the scene, which allows for easy location of the gamma emitting radionuclides that are present. By selecting different regions of interest in the recorded gamma spectrum, separate radionuclide specific images, of the area being surveyed, can be visualised. Calibration of the detector allows for quantitative mapping of where each component of the dose rate at the detector originates. This can be converted into activity with a priori knowledge of the scene geometry. Gamma-ray images have been experimentally obtained for both point sources and extended sources in controlled testing environments and these results will be presented. The imaging results from a range of real world operational environments, around the ANSTO site, will be presented and demonstrate the systems capability for locating sources of radiation in nuclear industry applications.en_AU
dc.identifier.citationGuenette, M., Boardman, D., Sarbutt, A., Flynn, A., & Prokopovich, D. (2017). Evaluation of novel gamma ray imaging technology. Paper presented to the APRS2017 Conference: "Science and the art of radiation protection: broadening the horizon", Novotel Wollongong Northbeach, Wollongong, NSW, 6-9 August 2017. (pp. 60-61).en_AU
dc.identifier.conferenceenddate9 August 2017en_AU
dc.identifier.conferencenameAPRS2017 Conference: 'Science and the art of radiation protection: broadening the horizon'en_AU
dc.identifier.conferenceplaceWollongong, NSWen_AU
dc.identifier.conferencestartdate6 August 2017en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13109en_AU
dc.language.isoenen_AU
dc.publisherAustralasian Radiation Protection Societyen_AU
dc.subjectImagesen_AU
dc.subjectGamma camerasen_AU
dc.subjectRadioisotope scannersen_AU
dc.subjectANSTOen_AU
dc.subjectRadiation dosesen_AU
dc.subjectDose ratesen_AU
dc.subjectDose limitsen_AU
dc.subjectMeV rangeen_AU
dc.subjectRadioisotopesen_AU
dc.subjectCalibrationen_AU
dc.subjectNuclear industryen_AU
dc.titleEvaluation of novel gamma ray imaging technologyen_AU
dc.typeConference Abstracten_AU
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