Measurement of Time Resolution of Scintillation Detectors with EQR-15 Silicon Photodetectors for the Time-of-Flight Neutron Detector of the BM@N Experiment

IF 0.4 4区 工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY Instruments and Experimental Techniques Pub Date : 2024-10-23 DOI:10.1134/S0020441224700696
F. F. Guber, A. P. Ivashkin, N. M. Karpushkin, A. I. Makhnev, S. V. Morozov, D. V. Serebryakov, V. A. Baskov, V. V. Polyanskiy
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Abstract

To study the dependence of the equation of state of high-density nuclear matter on the term characterizing the isospin (proton–neutron) asymmetry of nuclear matter, it is necessary to measure azimuthal flow of neutrons as well as azimuthal flow of charged particles from a dense nuclear matter in the nuclear–nuclear collisions. For this purpose, the Institute for Nuclear Research (Russian Academy of Sciences) is developing a new high-granular neutron detector that will be used in the BM@N experiment at the extracted beam of the Nuclotron accelerator at the Joint Institute for Nuclear Research (JINR, Dubna). This detector will identify neutrons and measure their energies in the heavy-ion collisions up to 4 GeV per nucleon. This article presents the results of measurements of the time resolution and light yields of samples of scintillation detectors with sizes 40 × 40 × 25 mm3 that will be used in a neutron detector based on the currently available fast plastic scintillator manufactured by JINR using an EQR15 11-6060D-S photodetector for light readout. For comparison, the results of measurements for a detector of the same size with a EJ-230 fast scintillator and with the same type of photodetector are given. The measurements were made on cosmic muons as well as on the Pakhra electron synchrotron of the Lebedev Physical Institute of the Russian Academy of Sciences located in Troitsk, Moscow.

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用 EQR-15 硅光电探测器测量用于 BM@N 实验飞行时间中子探测器的闪烁探测器的时间分辨率
为了研究高密度核物质的状态方程对表征核物质同位素(质子-中子)不对称的项的依赖性,有必要测量核-核碰撞中高密度核物质的中子方位流和带电粒子方位流。为此,核研究所(俄罗斯科学院)正在开发一种新的高粒度中子探测器,该探测器将用于在杜布纳联合核研究所(JINR,杜布纳)的 Nuclotron 加速器提取束上进行的 BM@N 实验。该探测器将在重离子碰撞中识别中子并测量它们的能量,每个核子的能量最高可达 4 GeV。本文介绍了对闪烁探测器样品的时间分辨率和光产率的测量结果,这些样品的尺寸为 40 × 40 × 25 立方毫米,将用于中子探测器,该探测器基于目前由 JINR 制造的快速塑料闪烁器,使用 EQR15 11-6060D-S 光电探测器进行光读出。为便于比较,我们提供了使用 EJ-230 快速闪烁体和同类光电探测器对相同尺寸探测器进行测量的结果。测量是在宇宙μ介子以及位于莫斯科特罗伊茨克的俄罗斯科学院列别杰夫物理研究所的 Pakhra 电子同步加速器上进行的。
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来源期刊
Instruments and Experimental Techniques
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.
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