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

Manuel L Sztejnberg Gonçalves-Carralves; Mario A Gadan; Silva Bortolussi; Julián Pinto; Juan Ojeda; Sebastián Langan; Jorge Quintana; Marcelo E Miller

doi:10.1016/j.apradiso.2011.02.026

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

Appl Radiat Isot. 2011 Dec;69(12):1928-31. doi: 10.1016/j.apradiso.2011.02.026. Epub 2011 Feb 19.

Authors

Manuel L Sztejnberg Gonçalves-Carralves¹, Mario A Gadan, Silva Bortolussi, Julián Pinto, Juan Ojeda, Sebastián Langan, Jorge Quintana, Marcelo E Miller

Affiliation

¹ Comisión Nacional de Energía Atómica, Presbítero Luis González y Aragón 15 (B1802AYA), Ezeiza, Buenos Aires, Argentina. manuelsgc@cae.cnea.gov.ar

PMID: 21420305
DOI: 10.1016/j.apradiso.2011.02.026

Abstract

A PGNAA facility is being developed for (10)B 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 10(9) n cm(-2) s(-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.