A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes
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 233U(n, γ) 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.
Item Type | Article |
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Uncontrolled Keywords | U; Fission detector; n_TOF; Time-of-flight |
Subjects |
Physics and Astronomy(all) > Nuclear and High Energy Physics Physics and Astronomy(all) > Instrumentation |
Date Deposited | 18 Nov 2024 11:47 |
Last Modified | 18 Nov 2024 11:47 |