Pulse shape simulations for organic scintillation detectors using Geant4

The accurate simulation of the temporal pulse shapes from organic scintillation detectors capable of pulse shape discrimination (PSD) presents the opportunity to assess the pulse shape discrimination of these detectors prior to fabrication. The aim of this study is the simulation of the temporal pul...

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Autores principales:	Holroyd Caroline, Aspinall Michael, Deakin Tom
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	monte carlo simulations geant4 plastic scintillators pulse shape discrimination Physics QC1-999
Acceso en línea:	https://doaj.org/article/a1f556a287dd43788c4b9d9b0b0a59f5
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id	oai:doaj.org-article:a1f556a287dd43788c4b9d9b0b0a59f5
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spelling	oai:doaj.org-article:a1f556a287dd43788c4b9d9b0b0a59f52021-12-02T17:12:46ZPulse shape simulations for organic scintillation detectors using Geant42100-014X10.1051/epjconf/202125311002https://doaj.org/article/a1f556a287dd43788c4b9d9b0b0a59f52021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_11002.pdfhttps://doaj.org/toc/2100-014XThe accurate simulation of the temporal pulse shapes from organic scintillation detectors capable of pulse shape discrimination (PSD) presents the opportunity to assess the pulse shape discrimination of these detectors prior to fabrication. The aim of this study is the simulation of the temporal pulse shapes from EJ-276, a PSD-capable plastic scintillator developed by Eljen Technologies. PSD plastic scintillators are increasingly replacing organic liquid scintillators for the detection of neutrons in the presence of mixed radiation fields for nuclear security applications. Plastics are inexpensive, robust and can be fabricated in a variety of shapes and sizes. They offer a solid-state alternative to liquid scintillators which can be difficult to transport due to the risk of leakage. However, the PSD performance of plastic scintillators has been observed to decrease due to various factors which combine to influence the overall shape of the pulse. The Monte Carlo toolkit Geant4 has been used to simulate the temporal pulse shapes from an EJ-276 plastic scintillator coupled to a photomultiplier tube (PMT). All three decay time components of EJ-276 have been modelled, utilising new methods available in the latest version of Geant4, for two different scintillator geometries. The simulated n/γ pulse shapes reproduce the features important for PSD. Future work will involve integrating the temporal response of the PMT with existing pulse shape simulations. Simulated data will then be compared with experimental measurements.Holroyd CarolineAspinall MichaelDeakin TomEDP Sciencesarticlemonte carlo simulationsgeant4plastic scintillatorspulse shape discriminationPhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 11002 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	monte carlo simulations geant4 plastic scintillators pulse shape discrimination Physics QC1-999
spellingShingle	monte carlo simulations geant4 plastic scintillators pulse shape discrimination Physics QC1-999 Holroyd Caroline Aspinall Michael Deakin Tom Pulse shape simulations for organic scintillation detectors using Geant4
description	The accurate simulation of the temporal pulse shapes from organic scintillation detectors capable of pulse shape discrimination (PSD) presents the opportunity to assess the pulse shape discrimination of these detectors prior to fabrication. The aim of this study is the simulation of the temporal pulse shapes from EJ-276, a PSD-capable plastic scintillator developed by Eljen Technologies. PSD plastic scintillators are increasingly replacing organic liquid scintillators for the detection of neutrons in the presence of mixed radiation fields for nuclear security applications. Plastics are inexpensive, robust and can be fabricated in a variety of shapes and sizes. They offer a solid-state alternative to liquid scintillators which can be difficult to transport due to the risk of leakage. However, the PSD performance of plastic scintillators has been observed to decrease due to various factors which combine to influence the overall shape of the pulse. The Monte Carlo toolkit Geant4 has been used to simulate the temporal pulse shapes from an EJ-276 plastic scintillator coupled to a photomultiplier tube (PMT). All three decay time components of EJ-276 have been modelled, utilising new methods available in the latest version of Geant4, for two different scintillator geometries. The simulated n/γ pulse shapes reproduce the features important for PSD. Future work will involve integrating the temporal response of the PMT with existing pulse shape simulations. Simulated data will then be compared with experimental measurements.
format	article
author	Holroyd Caroline Aspinall Michael Deakin Tom
author_facet	Holroyd Caroline Aspinall Michael Deakin Tom
author_sort	Holroyd Caroline
title	Pulse shape simulations for organic scintillation detectors using Geant4
title_short	Pulse shape simulations for organic scintillation detectors using Geant4
title_full	Pulse shape simulations for organic scintillation detectors using Geant4
title_fullStr	Pulse shape simulations for organic scintillation detectors using Geant4
title_full_unstemmed	Pulse shape simulations for organic scintillation detectors using Geant4
title_sort	pulse shape simulations for organic scintillation detectors using geant4
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/a1f556a287dd43788c4b9d9b0b0a59f5
work_keys_str_mv	AT holroydcaroline pulseshapesimulationsfororganicscintillationdetectorsusinggeant4 AT aspinallmichael pulseshapesimulationsfororganicscintillationdetectorsusinggeant4 AT deakintom pulseshapesimulationsfororganicscintillationdetectorsusinggeant4
_version_	1718381395034767360

Pulse shape simulations for organic scintillation detectors using Geant4

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