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arXiv 2203.10048astro-ph.IMphysics.ins-det
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该KM3NeT多PMT光模块

The KM3NeT multi-PMT optical module

KM3NeT Collaboration

摘要:

KM3NeT中微子望远镜的光学模块是一个创新的,多方面的大面积光电探测模块。它在一个直径为0.44米的耐压玻璃球内装有31个3英寸的光电倍增管。该模块是一种传感装置,还包括校准仪器和用于供电、读出和数据采集的电子设备。它的顶部有一个接线盒,接线盒上有电子设备,用于连接到电力和远距离通信的电光电缆,以连接到岸上控制站。该模块的设计于2013年首次在深海获得资格。此后,该技术得到了进一步改进,以满足可扩展性、成本效益和高可靠性的要求。该模块具有亚纳秒级的授时精度和动态范围,允许测量单个光子到数千个光子的级联,适用于测量由能量在GeV至PeV范围内的中微子相互作用产生的次级粒子在水中诱导的切伦科夫辐射。已实施分布式生产模式,在未来几年内交付6000多个模块,平均每月生产100多个模块。本文综述了多PMT KM3NeT光学模块的设计,该模块具有有效的背景抑制和信号识别以及对光子入射方向的灵敏度。

英文摘要:

The optical module of the KM3NeT neutrino telescope is an innovative, multi-faceted large area photodetection module. It contains 31 three-inch photomultiplier tubes in a single 0.44 m diameter pressure-resistant glass sphere. The module is a sensory device also comprising calibration instruments and electronics for power, readout and data acquisition. It is capped with a breakout-box with electronics for connection to an electro-optical cable for power and long-distance communication to the onshore control station. The design of the module was qualified for the first time in the deep sea in 2013. Since then, the technology has been further improved to meet requirements of scalability, cost-effectiveness and high reliability. The module features a sub-nanosecond timing accuracy and a dynamic range allowing the measurement of a single photon up to a cascade of thousands of photons, suited for the measurement of the Cherenkov radiation induced in water by secondary particles from interactions of neutrinos with energies in the range of GeV to PeV. A distributed production model has been implemented for the delivery of more than 6000 modules in the coming few years with an average production rate of more than 100 modules per month. In this paper a review is presented of the design of the multi-PMT KM3NeT optical module with a proven effective background suppression and signal recognition and sensitivity to the incoming direction of photons.

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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