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Light-yield response of liquid scintillators using 2–6 MeV tagged neutrons

Mauritzson, N. LU ; Fissum, K. G. LU orcid ; Annand, J. R.M. ; Perrey, H. LU ; Al Jebali, R. ; Backis, A. ; Hall-Wilton, R. ; Kanaki, K. ; Maulerova-Subert, V. and Messi, F. LU orcid , et al. (2024) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1062.
Abstract

Knowledge of the neutron light-yield response is crucial to the understanding of scintillator-based neutron detectors. In this work, neutrons from 2–6 MeV have been used to study the scintillation light-yield response of the liquid scintillators NE 213A, EJ 305, EJ 331 and EJ 321P using event-by-event waveform digitization. Energy calibration was performed using a GEANT4 model to locate the edge positions of the Compton distributions produced by gamma-ray sources. The simulated light yield for neutrons from a PuBe source was compared to measured recoil proton distributions, where neutron energy was selected by time-of-flight. This resulted in an energy-dependent Birks parameterization to characterize the non-linear response to the lower... (More)

Knowledge of the neutron light-yield response is crucial to the understanding of scintillator-based neutron detectors. In this work, neutrons from 2–6 MeV have been used to study the scintillation light-yield response of the liquid scintillators NE 213A, EJ 305, EJ 331 and EJ 321P using event-by-event waveform digitization. Energy calibration was performed using a GEANT4 model to locate the edge positions of the Compton distributions produced by gamma-ray sources. The simulated light yield for neutrons from a PuBe source was compared to measured recoil proton distributions, where neutron energy was selected by time-of-flight. This resulted in an energy-dependent Birks parameterization to characterize the non-linear response to the lower energy neutrons. The NE 213A and EJ 305 results agree very well with existing data and are reproduced nicely by the simulation. New results for EJ 331 and EJ 321P, where the simulation also reproduces the data well, are presented.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
EJ 305, EJ 321P, EJ 331, Light yield, NE 213A, Scintillator, Simulation, Time-of-flight
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
1062
article number
169197
publisher
Elsevier
external identifiers
  • scopus:85185562535
ISSN
0168-9002
DOI
10.1016/j.nima.2024.169197
language
English
LU publication?
yes
id
8860def3-c474-491b-9497-30028e439a62
date added to LUP
2024-03-14 10:07:40
date last changed
2024-03-14 10:08:57
@article{8860def3-c474-491b-9497-30028e439a62,
  abstract     = {{<p>Knowledge of the neutron light-yield response is crucial to the understanding of scintillator-based neutron detectors. In this work, neutrons from 2–6 MeV have been used to study the scintillation light-yield response of the liquid scintillators NE 213A, EJ 305, EJ 331 and EJ 321P using event-by-event waveform digitization. Energy calibration was performed using a GEANT4 model to locate the edge positions of the Compton distributions produced by gamma-ray sources. The simulated light yield for neutrons from a PuBe source was compared to measured recoil proton distributions, where neutron energy was selected by time-of-flight. This resulted in an energy-dependent Birks parameterization to characterize the non-linear response to the lower energy neutrons. The NE 213A and EJ 305 results agree very well with existing data and are reproduced nicely by the simulation. New results for EJ 331 and EJ 321P, where the simulation also reproduces the data well, are presented.</p>}},
  author       = {{Mauritzson, N. and Fissum, K. G. and Annand, J. R.M. and Perrey, H. and Al Jebali, R. and Backis, A. and Hall-Wilton, R. and Kanaki, K. and Maulerova-Subert, V. and Messi, F. and Frost, R. J.W. and Rofors, E. and Scherzinger, J.}},
  issn         = {{0168-9002}},
  keywords     = {{EJ 305; EJ 321P; EJ 331; Light yield; NE 213A; Scintillator; Simulation; Time-of-flight}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}},
  title        = {{Light-yield response of liquid scintillators using 2–6 MeV tagged neutrons}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2024.169197}},
  doi          = {{10.1016/j.nima.2024.169197}},
  volume       = {{1062}},
  year         = {{2024}},
}