铑自供电中子探测器性能的结构和材料依赖性研究

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-01 DOI:10.1088/1748-0221/19/05/p05058

Bo Wan, Gang Li, Kun Li, Dan Li, Qichang Huang, Yuan Xia, Wenbin Wei, Ying Luo, Miao Wang, Daibo Yang

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引用次数: 0

摘要

Rh-SPND 的中子测量特性在很大程度上受其几何结构的影响，这需要在设计时加以优化。这种影响反映在伽马和中子探测的灵敏度上。然而，伽马灵敏度与中子灵敏度同样重要，但对伽马灵敏度的影响尚未得到全面分析。因此，有必要定量分析探测器灵敏度与几何尺寸之间的关系。我们通过数值模拟计算和分析了 Rh-SPND 结构和材料参数对中子和伽马灵敏度的影响。研究结果表明，探测器的灵敏度在很大程度上取决于探测器的尺寸和发射器的形状。此外，通过优化探测器收集器的尺寸，可以消除探测器对外源反应堆伽马射线的响应。

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Study on structural and material dependence of Rhodium Self-powered Neutron Detector performance

The neutron measurement properties of Rh-SPNDs are greatly affected by their geometric constructions, which needs to be optimized while designing. This effect is reflected in the sensitivities for gamma and neutron detection. However, the influence on gamma sensitivity has not been fully analyzed before, which is of the same importance as neutron sensitivity. Therefore, it is necessary to quantitatively analyze the relationship between detector sensitivity and geometric dimensions. The effect of Rh-SPND structural and material parameters on neutron and gamma sensitivities has been calculated and analyzed through numerical simulations. The research results show that detector sensitivities are strongly depending on the detector size and its emitter shape. Moreover, the detector response to exogenous reactor gamma can be eliminated by optimizing the detector collector size.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.