Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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P. М. Zhmurin, D. A. Yelisieiev, V. D. Alekseev, O. V. Yelisieieva^*, Yu. О. Нurkalenko

Institute of Scintillation Materials, STC “Institute for Single Crystals”, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

^*Corresponding author. E-mail address: osvidlo@i.ua

Abstract: One of the problems in creating a radiation-hard scintillation composition on a polysiloxane base is the search for a radiation-hard activator capable of dissolving in such a base in sufficient quantity. In this work, in order to improve the solubility of p-terphenyl molecules in a polysiloxane base, its structure was modified with tert-butyl substituents. The obtained alkyl derivative of p-terphenyl was used as an activator of polysiloxane-based scintillators. The optical and scintillation properties of the obtained polysiloxane-based scintillators were studied, and their radiation hardness was determined.

Keywords: p-terphenyl, activator, polysiloxane scintillator, light yield, radiation hardness.

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