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A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes

Bacak, M.; Aïche, M.; Bélier, G.; Berthoumieux, E.; Diakaki, M.; Dupont, E.; Gunsing, F.; Heyse, J.; Kopecky, S.; Laurent, B.; Leeb, H.; Mathieu, L.; Moens, A.; Richter, S.; Schillebeeckx, P.; Serot, O.; Sibbens, G.; Taieb, J.; Vanleeuw, D.; Vlachoudis, V.; ... mehr

Abstract:
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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000120218
Veröffentlicht am 16.06.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 07.2020
Sprache Englisch
Identifikator ISSN: 0168-9002
KITopen-ID: 1000120218
HGF-Programm 51.03.04 (POF III, LK 01)
Kosmische Strahlung Technologien
Erschienen in Nuclear instruments & methods in physics research / A
Band 969
Seiten Art.Nr. 163981
Nachgewiesen in Web of Science
Scopus
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