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(n,p) reactions contribution in spherical proton recoil proportional counter responses


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Titre de la revue : Journal of Instrumentation
Volume : 2
Pagination : P01005
Date de publication : 01/01/2007

Type de document > *Article de revue

Mots clés > détecteurs à gaz

Unité de recherche > IRSN/DRPH/SDE/LMDN

Auteurs > BABUT Richard, GRESSIER Vincent

Date de publication > 01/01/2007

Résumé

Proton recoil proportional counters are used in several metrological institutes as reference neutron spectrometers within the energy range from a few tenth of keV up to a few MeV. When such counters are used to determine the low energy range of neutron fields with energies above 5 MeV, protons generated by (n,p) reactions within the stainless steel counter walls will add their contribution to the proton recoil process. In this work, this contribution has been estimated in the calculated response of the counter, using MCNPX Monte Carlo code. The validation of the calculated response has been performed at several AMANDE mono-energetic neutron fields.