Development of a gaseous proton-recoil telescope for neutron flux measurements between 0.2 and 2 MeV neutron energy - Centre d'Etudes Nucléaires de Bordeaux Gradignan Accéder directement au contenu
Article Dans Une Revue Radiat.Meas. Année : 2019

Development of a gaseous proton-recoil telescope for neutron flux measurements between 0.2 and 2 MeV neutron energy

Résumé

Absolute measurements of neutron fluence are an essential prerequisite of neutron-induced cross section measurements, neutron beam lines characterization and dosimetric investigations. The H(n,p) elastic scattering cross section is a very well known standard used to perform precise neutron flux measurements in high precision measurements. The use of this technique, with proton recoil detectors, is not straightforward below incident neutron energy of 1 MeV, due to a high background in the detected proton spectrum. Experiments have been carried out at the AIFIRA facility to investigate such background and to determine its origin and components. Based on these investigations, a gaseous proton-recoil telescope has been designed with a reduced low energy background. A first test of this detector has been carried out at the AIFIRA facility, and first results will be presented.
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hal-01937452 , version 1 (22-10-2021)

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Paternité - Pas d'utilisation commerciale

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Paola Marini, Ludovic Mathieu, Mourad Aïche, Serge Czajkowski, Beatriz Jurado, et al.. Development of a gaseous proton-recoil telescope for neutron flux measurements between 0.2 and 2 MeV neutron energy. Radiat.Meas., 2019, 124, pp.9-12. ⟨10.1016/j.radmeas.2019.02.013⟩. ⟨hal-01937452⟩

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