A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes
Langue
en
Article de revue
Ce document a été publié dans
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2020, vol. 969, p. 163981
Elsevier
Résumé en anglais
In the measurement of neutron capture cross-sections of fissile isotopes, the fission channel is a source of background which can be removed efficiently using the so-called $fission-tagging$ or $fission-veto technique$. ...Lire la suite >
In the measurement of neutron capture cross-sections of fissile isotopes, the fission channel is a source of background which can be removed efficiently using the so-called $fission-tagging$ or $fission-veto technique$. For this purpose a new compact and fast fission chamber has been developed. The design criteria and technical description of the chamber are given within the context of a measurement of the $^{233}$ U(n, $\gamma$ cross-section at the n_TOF facility at CERN, where it was coupled to the n_TOF Total Absorption Calorimeter. For this measurement the fission detector was optimized for time resolution, minimization of material in the neutron beam and for alpha-fission discrimination. The performance of the fission chamber and its application as a fission tagging detector are discussed.< Réduire
Mots clés en anglais
233U
Time-of-flight
n_TOF
233 U
Fission detector
Origine
Importé de halUnités de recherche