Abstract
Abstract Gamma imaging is a technique that allows the spatial localization of radioactive sources in decommissioning phases of nuclear facilities, nuclear waste management applications, radiation protection, and Homeland Security. One asset of this technique is the possibility to quickly localize radioactive sources associated with a quantitative information on their intensity. Using gamma camera diminishes the dose received by operators and consequently respects the ALARA principle (“As Low As Reasonably Achievable”). For several years, CEA LIST has been designing a coded aperture gamma camera, called GAMPIX. This imager was industrialized by MIRION Technologies (CANBERRA) under the commercial name of iPIX. An extensive study was initiated to validate the GAMPIX quantitative performances for evaluation of dose rate and associated uncertainties. The validation was performed with single and multiple radioactive sources covering an energy range from 60 keV to 1.3 MeV. This article presents experimental results obtained with the GAMPIX gamma camera in the framework of the EMRP ENV54 METRODECOM project.
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