Verifying a Two-Dimensional Model Simulating Attenuation of Neutron and Photon Radiation from Nuclear Reactors Having Metal Hydride Composite Protection

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials: Applied Research Pub Date : 2024-05-27 DOI:10.1134/S2075113324020461

R. N. Yastrebinsky, G. G. Bondarenko, V. I. Pavlenko, A. V. Yastrebinskaya, A. I. Gorodov

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Abstract

The results of experimental studies on attenuating neutron and photon radiation in a nuclear reactor using a protective metal hydride composite are presented. The distribution profile of the dose and spatial energy is obtained for primary and secondary gamma radiation. It is shown that the dose of gamma radiation behind the protection is associated with capturing gamma rays generated in the initial layer of the material. Based on the results obtained, the calculation model of the experiment is verified in the two-dimensional geometry for the properties of the material protecting the reactor. The verification involves the discrete ordinate method based on the DORT package. Deviations between the calculated and experimental values of the fast neutron relaxation lengths do not exceed 5%. The same deviations obtained for gamma radiation are under 7%, which confirms the validity of the calculation technique and the potential to apply the data obtained to proceed with designing radiation protection based on the metal hydride composite.

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验证模拟具有金属氢化物复合保护装置的核反应堆中子和光子辐射衰减的二维模型

摘要介绍了利用保护性金属氢化物复合材料衰减核反应堆中的中子和光子辐射的实验研究结果。获得了一次和二次伽马辐射的剂量和空间能量分布曲线。结果表明，保护层后的伽马辐射剂量与捕获材料初始层产生的伽马射线有关。根据所获得的结果，在二维几何图形中对实验的计算模型进行了验证，以确定保护反应堆的材料的特性。验证涉及基于 DORT 软件包的离散序数法。快中子弛豫长度的计算值和实验值之间的偏差不超过 5%。伽马射线的计算值与实验值的偏差也低于 7%，这证实了计算技术的有效性，以及应用所获数据继续设计基于金属氢化物复合材料的辐射防护的可能性。

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

Inorganic Materials: Applied Research Engineering-Engineering (all)

CiteScore

0.90

自引率

0.00%

发文量

199

期刊介绍： Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.