CsI and SrI2(Eu) Scintillation Detectors with Signal Removal by Silicon Photomultipliers with a Registration Threshold Below 200 eV

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2025-03-07 DOI:10.1134/S0020441224701999

A. G. Baranov, A. P. Ivashkin, S. A. Musin, G. Kh. Salakhutdinov, A. O. Strizhak

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Abstract

The article discusses the concepts of detectors made of inorganic scintillators CsI(pure) and SrI₂(Eu) with light signal removal by silicon photomultiplier matrices. These detectors are supposed to be used at low temperatures to register signals with ultralow energy release. The results of measuring the light collection of detector prototypes are presented. Specific light collections were obtained at the level of 30–40 photoelectrons per kiloelectronvolt of energy released in the detectors. The dependences of thermal noise and optical coupling of silicon photomultipliers on temperature are investigated. It is shown that the use of detectors at negative temperatures makes it possible to effectively suppress the noise of photodetectors and provide a registration threshold at the level of several photoelectrons. These detectors can be in demand in various fundamental and applied fields, in particular, in the physics of low-energy neutrinos.

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来源期刊

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.