Study of 14.7 MeV Neutron Field Characteristics with a Diamond Detector

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2024-12-05 DOI:10.1134/S0020441224701045

S. A. Meshchaninov, N. B. Rodionov, A. V. Krasil’nikov, V. O. Saburov, E. I. Kazakov, A. A. Lychagin, S. N. Koryakin, Yu. A. Kashchuk, R. N. Rodionov, V. N. Amosov, A. S. Dzhurik

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Abstract

The results of experimental studies of the neutron field characteristics with an energy of 14.7 MeV created by the portable neutron generator NG-14 are presented. The measurements were made using a fast neutron radiometer based on a diamond detector. The neutron beam from the neutron generator’s target passed through a massive collimator made of steel. Analysis of the amplitude spectra of the diamond detector, caused by the registration of fast neutrons, made it possible to determine the following characteristics of the neutron field: the flux density of direct neutrons, the flux density of neutrons scattered in the collimator, and the energy spectrum of neutron radiation. Based on the obtained energy spectra, the kerma of neutron radiation in the water phantom and the dose rate of scattered neutrons behind the collimator with an energy higher than 0.5 MeV were calculated.

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金刚石探测器研究14.7 MeV中子场特性

本文介绍了便携式中子发生器NG-14产生能量为14.7 MeV的中子场特性的实验研究结果。测量是用基于金刚石探测器的快中子辐射计进行的。来自中子发生器目标的中子束穿过一个巨大的钢制准直器。通过对金刚石探测器快中子配准引起的振幅谱的分析，可以确定中子场的以下特征：直接中子的通量密度、准直器中散射的中子的通量密度和中子辐射的能谱。根据得到的能谱，计算了水影中中子辐射的kerma和准直器后能量大于0.5 MeV的散射中子的剂量率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.