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arXiv 2603.03561hep-exphysics.ins-det
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提高用于反应堆监测的分段反中微子探测器的角度灵敏度

Enhancing Angular Sensitivity of Segmented Antineutrino Detectors for Reactor Monitoring

University of Hawai’i at Mānoa(夏威夷大学马诺阿分校);Lawrence Livermore National Laboratory(劳伦斯利弗莫尔国家实验室)

Brian C. Crow, Max A. A. Dornfest, John G. Learned, Jackson D. Seligman, Nathan S. Sibert, Jeffrey G. Yepez, Viacheslav A. Li

AI总结:

提出一种基于矩阵距离度量的方向性算法,通过优化分段尺度提高反中微子探测器的角度灵敏度,并验证其在低计数条件下的有效性。

摘要:

我们提出了一种对标准方法的潜在改进,该方法用于确定逆贝塔衰变探测器中反中微子的方向性。先前开发的用于量化整体和分段探测器中方向性的方法可能在方法论上存在歧义。在本文中,我们提出了一种方向性算法并包含误差分析。我们开发了一种基于两个矩阵之间“距离”度量的算法。我们报告了在反应堆反中微子方向性方面的研究结果,并强调该算法在需要计算高效的二维模式匹配时具有广泛的应用。我们将来自掺锂-6探测器段的数据以矩阵形式处理。我们算法的验证归结为将蒙特卡洛生成的“经验”数据集与模拟数据集进行比较。经验数据集是针对中微子束的特定方向生成的。我们在低计数区域确定了最佳的分段尺度。我们还讨论了传统方法的缺点,以及如何将这些知识应用于分段探测器、混合设计和通用验证,而与探测器设计的物理原理无关。

英文摘要:

We present a potential improvement over the standard method developed to determine antineutrino directionality in inverse-beta-decay detectors. The previously developed method for quantifying directionality in monolithic and segmented detectors may be ambiguous in methodology. In this paper, we present a directionality algorithm and include error analysis. We have developed an algorithm based on a measure of ``distance'' between two matrices. We report findings for our research in reactor-antineutrino directionality, and emphasize that the algorithm has broad applications whenever one desires computationally efficient 2D pattern-matching. We treat data from Lithium-6-doped detector segments in the form of a matrix. The validation of our algorithm boils down to comparing a Monte Carlo generated ``empirical'' data set to a simulated data set. The empirical data set is generated for a particular orientation of the neutrino beam. We identify an optimal segmentation scale in the low-count regime. We also discuss the shortcomings of the conventional method and how this knowledge can be applied to segmented detectors, hybrid designs, and generalized validation, agnostic to the physics of detector design.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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