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arXiv 2302.05032astro-ph.IMhep-ex
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深海中微子望远镜站点的光学过程模拟研究

Simulation study on the optical processes at deep-sea neutrino telescope sites

Fan Hu, Zhenyu Wei, Wei Tian, Ziping Ye, Fuyudi Zhang, Zhengyang Sun, Wei Zhi, Qichao Chang, Qiao Xue, Zhuo Li, Donglian Xu

AI总结:

本研究基于Geant4开发光学模拟程序,模拟南海深水吸收与散射过程以提取光学性质,验证了PMTs和相机观测分析方法,模拟结果与实验数据吻合良好,可推广至其他中微子望远镜实验。

摘要:

大型水切伦科夫中微子望远镜的性能严重依赖于周围水的透明度,这通过其光吸收和散射水平来量化。一项探路者实验在南中国海进行,旨在测量深海水的光学性质,实验使用发光二极管(LEDs)作为光源,光电倍增管(PMTs)和相机作为光子传感器。在此,我们提出一个采用Geant4工具包的光学模拟程序,以理解深海水的吸收和散射过程,这有助于从实验数据中提取潜在的光学性质。模拟结果与实验数据进行了比较,并显示出良好的一致性。我们还利用该模拟程序验证了利用PMTs和相机的各种观测量的分析方法,该方法可被其他中微子望远镜探路者实验和未来大型探测器轻松采用。

英文摘要:

The performance of a large-scale water Cherenkov neutrino telescope relies heavily on the transparency of the surrounding water, quantified by its level of light absorption and scattering. A pathfinder experiment was carried out to measure the optical properties of deep seawater in South China Sea with light-emitting diodes (LEDs) as light sources, photon multiplier tubes (PMTs) and cameras as photon sensors. Here, we present an optical simulation program employing the Geant4 toolkit to understand the absorption and scattering processes in the deep seawater, which helps to extract the underlying optical properties from the experimental data. The simulation results are compared with the experimental data and show good agreements. We also verify the analysis methods that utilize various observables of the PMTs and the cameras with this simulation program, which can be easily adapted by other neutrino telescope pathfinder experiments and future large-scale detectors.

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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