2011 Article Detectors Dosimetry ICNCT14 Physics

Development of a prompt gamma neutron activation analysis facility for 10B concentration measurements at RA-3: Design stage

Applied Radiation and Isotopes, 2011

Authors:   Manuel Sztejnberg Gonçalves-Carralves, Mario Gadan, Silva Bortolussi, Julián Pinto, Juan Ojeda, Sebastián Langan, Jorge Quintana, Marcelo Miller
Journal: Applied Radiation and Isotopes
Abstract: A PGNAA facility is being developed for 10B concentration measurements at RA-3 reactor. Its design targets detection limits better than tenths of a microgram and irradiation times on the order of minutes. Computational models were developed, which estimated thermal neutron fluxes in irradiation position to be larger than 109ncm−2s−1. Calculated amounts of photons and fast neutrons make necessary for filter/moderator arrangements. An irradiation device was designed and numerically tested, which is being built and is to be used for performing characterizing measurements.