用电子-正电子对谱仪研究快中子与轻核相互作用的装置

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2025-09-24 DOI:10.1134/S0020441225700630

S. Kh. Karaevsky, S. I. Potashev, Yu. M. Burmistrov, A. A. Kasparov, E. A. Permyakov, V. N. Ponomarev, V. I. Razin

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引用次数: 0

摘要

建立了一个实验装置来研究能量在1mev以上的快中子与低z原子核之间的相互作用，并发射3H或4He原子核和电子-正电子对。它的组成是一个位置敏感的中子探测器，其所研究的核层和比例腔的敏感尺寸为50 × 50 mm2，两个位置敏感的硅探测器，敏感尺寸为64 × 64 mm2，两个基于NaI晶体的闪烁探测器，直径为42 mm，高度为46 mm，电子的能量分辨率为~4.5%。通过对事件进行空间重构，测量电子和正电子的能量和出射角，可以研究具有内部转换电子-正电子对发射的罕见核内过程。

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A Setup for Studying Interactions of Fast Neutrons and Light Nuclei with an Electron−Positron Pair Spectrometer

An experimental setup has been developed to study interaction between fast neutrons with an energy above 1 MeV and low-Z nuclei with the emission of a ³H or ⁴He nucleus and an electron−positron pair. Its components are a position-sensitive neutron detector with a layer of nuclei under study and proportional chamber with sensitive dimensions of 50 × 50 mm², two position-sensitive silicon detectors with sensitive dimensions of 64 × 64 mm², and two scintillation detectors based on NaI crystals with a diameter of 42 mm, a height of 46 mm, and an energy resolution of ~4.5% for electrons. It is possible to study rare intranuclear processes with the emission of internal-conversion electron−positron pairs by performing spatial reconstruction of events and measuring the energy and exit angle of an electron and a positron.

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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.