Functional Polymeric Coatings for CsI(Tl) Scintillators

The handling of inorganic scintillators (e.g., alkali metal halides) can benefit from the availability of polymeric materials able to adhere to their surface. Polymeric materials, such as epoxy resins, can act as protective coatings, as adhesives for photodiodes to be connected with the scintillator...

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Autores principales:	Gianfranco Carotenuto, Angela Longo, Giuseppe Nenna, Ubaldo Coscia, Mariano Palomba
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	optical-grade epoxy inorganic scintillator alkali metal halides adhesion interface Coulomb forces Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/ce973dc20e04472496155bed75ebdb1f
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spelling	oai:doaj.org-article:ce973dc20e04472496155bed75ebdb1f2021-11-25T17:15:29ZFunctional Polymeric Coatings for CsI(Tl) Scintillators10.3390/coatings111112792079-6412https://doaj.org/article/ce973dc20e04472496155bed75ebdb1f2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1279https://doaj.org/toc/2079-6412The handling of inorganic scintillators (e.g., alkali metal halides) can benefit from the availability of polymeric materials able to adhere to their surface. Polymeric materials, such as epoxy resins, can act as protective coatings, as adhesives for photodiodes to be connected with the scintillator surface, and as a matrix for functional fillers to improve the optical properties of scintillators. Here, the optical properties of two epoxy resins (E-30 by Prochima, and Technovit Epox by Heraeus Kulzer) deposited on the surface of a scintillator crystal made of CsI(Tl) were investigated, in order to improve the detection of high-energy radiation. It is found that these resins are capable of adhering to the surface of alkali metal halides. Adhesion, active at the epoxy–CsI(Tl) interface, can be explained on the basis of Coulomb forces acting between the ionic solid surface and an ionic intermediate of synthesis generated during the epoxy setting reaction. Technovit Epox showed higher transparency, and it was also functionalized by embedding white powdered pigments (PTFE or BaSO<sub>4</sub>) to achieve an optically reflective coating on the scintillator surface.Gianfranco CarotenutoAngela LongoGiuseppe NennaUbaldo CosciaMariano PalombaMDPI AGarticleoptical-grade epoxyinorganic scintillatoralkali metal halidesadhesioninterfaceCoulomb forcesEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1279, p 1279 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	optical-grade epoxy inorganic scintillator alkali metal halides adhesion interface Coulomb forces Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	optical-grade epoxy inorganic scintillator alkali metal halides adhesion interface Coulomb forces Engineering (General). Civil engineering (General) TA1-2040 Gianfranco Carotenuto Angela Longo Giuseppe Nenna Ubaldo Coscia Mariano Palomba Functional Polymeric Coatings for CsI(Tl) Scintillators
description	The handling of inorganic scintillators (e.g., alkali metal halides) can benefit from the availability of polymeric materials able to adhere to their surface. Polymeric materials, such as epoxy resins, can act as protective coatings, as adhesives for photodiodes to be connected with the scintillator surface, and as a matrix for functional fillers to improve the optical properties of scintillators. Here, the optical properties of two epoxy resins (E-30 by Prochima, and Technovit Epox by Heraeus Kulzer) deposited on the surface of a scintillator crystal made of CsI(Tl) were investigated, in order to improve the detection of high-energy radiation. It is found that these resins are capable of adhering to the surface of alkali metal halides. Adhesion, active at the epoxy–CsI(Tl) interface, can be explained on the basis of Coulomb forces acting between the ionic solid surface and an ionic intermediate of synthesis generated during the epoxy setting reaction. Technovit Epox showed higher transparency, and it was also functionalized by embedding white powdered pigments (PTFE or BaSO<sub>4</sub>) to achieve an optically reflective coating on the scintillator surface.
format	article
author	Gianfranco Carotenuto Angela Longo Giuseppe Nenna Ubaldo Coscia Mariano Palomba
author_facet	Gianfranco Carotenuto Angela Longo Giuseppe Nenna Ubaldo Coscia Mariano Palomba
author_sort	Gianfranco Carotenuto
title	Functional Polymeric Coatings for CsI(Tl) Scintillators
title_short	Functional Polymeric Coatings for CsI(Tl) Scintillators
title_full	Functional Polymeric Coatings for CsI(Tl) Scintillators
title_fullStr	Functional Polymeric Coatings for CsI(Tl) Scintillators
title_full_unstemmed	Functional Polymeric Coatings for CsI(Tl) Scintillators
title_sort	functional polymeric coatings for csi(tl) scintillators
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ce973dc20e04472496155bed75ebdb1f
work_keys_str_mv	AT gianfrancocarotenuto functionalpolymericcoatingsforcsitlscintillators AT angelalongo functionalpolymericcoatingsforcsitlscintillators AT giuseppenenna functionalpolymericcoatingsforcsitlscintillators AT ubaldocoscia functionalpolymericcoatingsforcsitlscintillators AT marianopalomba functionalpolymericcoatingsforcsitlscintillators
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Functional Polymeric Coatings for CsI(Tl) Scintillators

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