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Technique for the measurement of intrinsic pulse-shape discrimination for organic scintillators using tagged neutrons

Mauritzson, N. LU ; Fissum, K. G. LU orcid ; Annand, J. R.M. ; Perrey, H. LU ; Frost, R. J.W. LU ; Jebali, R. Al ; Backis, A. ; Hall-Wilton, R. ; Kanaki, K. and Maulerova-Subert, V. , et al. (2022) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1039.
Abstract

Fast-neutron/gamma-ray pulse-shape discrimination has been performed for the organic liquid scintillators NE 213A and EJ 305 using a time-of-flight based neutron-tagging technique and waveform digitization on an event-by-event basis. Gamma-ray sources and a Geant4-based simulation were used to calibrate the scintillation-light yield. The difference in pulse shape for the neutron and gamma-ray events was analyzed by integrating selected portions of the digitized waveform to produce a figure-of-merit for neutron/gamma-ray separation. This figure-of-merit has been mapped as a function of detector threshold and also of neutron energy determined from time-of-flight. It shows clearly that the well-established pulse-shape discrimination... (More)

Fast-neutron/gamma-ray pulse-shape discrimination has been performed for the organic liquid scintillators NE 213A and EJ 305 using a time-of-flight based neutron-tagging technique and waveform digitization on an event-by-event basis. Gamma-ray sources and a Geant4-based simulation were used to calibrate the scintillation-light yield. The difference in pulse shape for the neutron and gamma-ray events was analyzed by integrating selected portions of the digitized waveform to produce a figure-of-merit for neutron/gamma-ray separation. This figure-of-merit has been mapped as a function of detector threshold and also of neutron energy determined from time-of-flight. It shows clearly that the well-established pulse-shape discrimination capabilities of NE 213A are superior to those of EJ 305. The extra information provided by the neutron-tagging technique has resulted in a far more detailed assessment of the pulse-shape-discrimination capabilities of these organic scintillators.

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publishing date
type
Contribution to journal
publication status
published
subject
keywords
EJ 305, Figure-of-merit, NE 213A, Pulse-shape discrimination, Time-of-flight
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
1039
article number
167141
publisher
Elsevier
external identifiers
  • scopus:85134357309
ISSN
0168-9002
DOI
10.1016/j.nima.2022.167141
language
English
LU publication?
yes
id
94088752-2036-4021-9702-fe0686e05361
date added to LUP
2022-10-06 15:33:12
date last changed
2025-04-04 15:29:00
@article{94088752-2036-4021-9702-fe0686e05361,
  abstract     = {{<p>Fast-neutron/gamma-ray pulse-shape discrimination has been performed for the organic liquid scintillators NE 213A and EJ 305 using a time-of-flight based neutron-tagging technique and waveform digitization on an event-by-event basis. Gamma-ray sources and a Geant4-based simulation were used to calibrate the scintillation-light yield. The difference in pulse shape for the neutron and gamma-ray events was analyzed by integrating selected portions of the digitized waveform to produce a figure-of-merit for neutron/gamma-ray separation. This figure-of-merit has been mapped as a function of detector threshold and also of neutron energy determined from time-of-flight. It shows clearly that the well-established pulse-shape discrimination capabilities of NE 213A are superior to those of EJ 305. The extra information provided by the neutron-tagging technique has resulted in a far more detailed assessment of the pulse-shape-discrimination capabilities of these organic scintillators.</p>}},
  author       = {{Mauritzson, N. and Fissum, K. G. and Annand, J. R.M. and Perrey, H. and Frost, R. J.W. and Jebali, R. Al and Backis, A. and Hall-Wilton, R. and Kanaki, K. and Maulerova-Subert, V. and Maurer, C. and Messi, F. and Rofors, E.}},
  issn         = {{0168-9002}},
  keywords     = {{EJ 305; Figure-of-merit; NE 213A; Pulse-shape discrimination; Time-of-flight}},
  language     = {{eng}},
  month        = {{09}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}},
  title        = {{Technique for the measurement of intrinsic pulse-shape discrimination for organic scintillators using tagged neutrons}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2022.167141}},
  doi          = {{10.1016/j.nima.2022.167141}},
  volume       = {{1039}},
  year         = {{2022}},
}