Characterization of the neutron field from the 241Am-Be isotopic source of the IPHC irradiator

K. Amgarou*, M. Trocmé, M. J. García-Fusté, M. Vanstalle, E. Baussan, A. Nourreddine, C. Domingo

*Autor corresponent d’aquest treball

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Resum

A measurement campaign has been carried out recently to provide the source intensity and the reference spectra around a neutron irradiation facility based on 241Am-Be radionuclide source, using the UAB Bonner Sphere Spectrometer. This facility, which consists of a bunker, a container/shielding for the source and an irradiation device that uses an automated remote-controlled system for the source positioning and rotating during the dosimeter irradiation, is intended to be routinely used to check the response of passive dosimeters, namely those based on photo-stimulated imaging plates and solid-state nuclear track detectors. The measurement results, in terms of neutron spectra and global dosimetric quantities (i.e.; fluence and ambient dose equivalent rates) at different distances with respect to the 241Am-Be source, were compared with Monte Carlo simulations using the MCNPX code and a good agreement was observed. An estimation of the un-scattered neutron spectrum directly emitted from the 241Am-Be source is given as well.

Idioma originalAnglès nord-americà
Pàgines (de-a)61-66
Nombre de pàgines6
RevistaRadiation Measurements
Volum50
DOIs
Estat de la publicacióPublicada - de març 2013

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