The effect of the aging of liquid organic scintillators used for gamma-neutron separation

Since the beginning of using liquid scintillators for gamma-neutron separation, there have been many articles dealing with long-term degradation especially due to oxygen presented during scintillator encapsulation. The effect of aging of liquid organic scintillators namely EJ301, EJ309 (both Eljen T...

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Autores principales:	Janda Jiří, Jánský Jaroslav, Mazánková Věra, Cvachovec František
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	liquid organic scintillator γ-n discrimination long-term stability scintillator aging Physics QC1-999
Acceso en línea:	https://doaj.org/article/7a675c034f32442192b08de823c0f121
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spelling	oai:doaj.org-article:7a675c034f32442192b08de823c0f1212021-12-02T17:12:46ZThe effect of the aging of liquid organic scintillators used for gamma-neutron separation2100-014X10.1051/epjconf/202125311004https://doaj.org/article/7a675c034f32442192b08de823c0f1212021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/07/epjconf_animma2021_11004.pdfhttps://doaj.org/toc/2100-014XSince the beginning of using liquid scintillators for gamma-neutron separation, there have been many articles dealing with long-term degradation especially due to oxygen presented during scintillator encapsulation. The effect of aging of liquid organic scintillators namely EJ301, EJ309 (both Eljen Technology), and new custom-made cocktails based on 1-Phenyl-3-(2,4,6-trimethylphenyl)-2-pyrazoline and 2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene fluors were investigated for more than half a year. The research was focused on the Compton edge shifting of gamma particles since the position is proportional to the light yield of the selected scintillator. Furthermore, the gamma-neutron separation was observed and quantified using FOM (Figure Of Merit) for samples prepared and filled under normal and nitrogen atmosphere during the mentioned period. All stated parameters of liquid scintillator NE213 manufactured by Nuclear Enterprises Limited opened more than three decades ago were measured and used for comparison.Janda JiříJánský JaroslavMazánková VěraCvachovec FrantišekEDP Sciencesarticleliquid organic scintillatorγ-n discriminationlong-term stabilityscintillator agingPhysicsQC1-999ENEPJ Web of Conferences, Vol 253, p 11004 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	liquid organic scintillator γ-n discrimination long-term stability scintillator aging Physics QC1-999
spellingShingle	liquid organic scintillator γ-n discrimination long-term stability scintillator aging Physics QC1-999 Janda Jiří Jánský Jaroslav Mazánková Věra Cvachovec František The effect of the aging of liquid organic scintillators used for gamma-neutron separation
description	Since the beginning of using liquid scintillators for gamma-neutron separation, there have been many articles dealing with long-term degradation especially due to oxygen presented during scintillator encapsulation. The effect of aging of liquid organic scintillators namely EJ301, EJ309 (both Eljen Technology), and new custom-made cocktails based on 1-Phenyl-3-(2,4,6-trimethylphenyl)-2-pyrazoline and 2,5-Bis(5-tert-butyl-benzoxazol-2-yl)thiophene fluors were investigated for more than half a year. The research was focused on the Compton edge shifting of gamma particles since the position is proportional to the light yield of the selected scintillator. Furthermore, the gamma-neutron separation was observed and quantified using FOM (Figure Of Merit) for samples prepared and filled under normal and nitrogen atmosphere during the mentioned period. All stated parameters of liquid scintillator NE213 manufactured by Nuclear Enterprises Limited opened more than three decades ago were measured and used for comparison.
format	article
author	Janda Jiří Jánský Jaroslav Mazánková Věra Cvachovec František
author_facet	Janda Jiří Jánský Jaroslav Mazánková Věra Cvachovec František
author_sort	Janda Jiří
title	The effect of the aging of liquid organic scintillators used for gamma-neutron separation
title_short	The effect of the aging of liquid organic scintillators used for gamma-neutron separation
title_full	The effect of the aging of liquid organic scintillators used for gamma-neutron separation
title_fullStr	The effect of the aging of liquid organic scintillators used for gamma-neutron separation
title_full_unstemmed	The effect of the aging of liquid organic scintillators used for gamma-neutron separation
title_sort	effect of the aging of liquid organic scintillators used for gamma-neutron separation
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/7a675c034f32442192b08de823c0f121
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The effect of the aging of liquid organic scintillators used for gamma-neutron separation

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