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

Jonathan Billowes; James Ryan; Alastair Smith; Nikolay Sosnin; Samantha Warren; Tobias Wright; et al.

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

Jonathan Billowes, James Ryan, Alastair Smith, Nikolay Sosnin, Samantha Warren, Tobias Wright, et al.

Research output: Contribution to journal › Article › peer-review

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 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.

Original language	English
Journal	Nuclear Instruments and Methods A
Publication status	Accepted/In press - 21 Apr 2020

Keywords

Fission detector
233U
n TOF
time-of-flight

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Embargo ends: 1/01/30

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title = "A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes",

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 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.",

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year = "2020",

month = apr,

day = "21",

language = "English",

journal = "Nuclear Instruments and Methods A",

issn = "0168-9002",

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TY - JOUR

T1 - A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes

AU - Billowes, Jonathan

AU - Ryan, James

AU - Smith, Alastair

AU - Sosnin, Nikolay

AU - Warren, Samantha

AU - Wright, Tobias

AU - et al.,

PY - 2020/4/21

Y1 - 2020/4/21

N2 - 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.

AB - 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.

KW - Fission detector

KW - 233U

KW - n TOF

KW - time-of-flight

M3 - Article

SN - 0168-9002

JO - Nuclear Instruments and Methods A

JF - Nuclear Instruments and Methods A

ER -

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

Abstract

Keywords

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