Preparation for mass production and quality assurance of the mPMT module for Hyper-Kamiokande

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2024-11-16 DOI:10.1016/j.nima.2024.170082

Alessandro Di Nola, the Hyper-Kamiokande collaboration

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引用次数: 0

Abstract

Hyper-Kamiokande will be the next generation of large-scale water Cherenkov detectors. It aims at obtaining exciting results in many areas, such as the study of CP violation, the search for proton decay and the study of accelerator, atmospheric, solar and astronomical neutrinos. The Hyper-Kamiokande Far Detector will be equipped with a hybrid photosensor configuration combining the 20” photomultiplier tubes (PMT) with the multi-PMT modules, a novel technology first designed for the KM3NeT experiment. The multi-PMT module is based on a pressure vessel instrumented with 19 small diameter (7.7 cm) photosensors, each one with a different orientation. The readout electronics and high-voltage power supplies for the photomultiplier tubes are also integrated within the module. It offers several advantages such as increased granularity, reduced dark rate, weaker sensitivity to the Earth’s magnetic field, improved time resolution and directional information with an almost isotropic field of view. The R&D of the mPMT prototype is almost complete and now preparations for mass production are now underway. In this contribution the results of the tests performed on the first prototypes as well as the procedures for quality assurance and Hyper-Kamiokande’s multi-PMT program are discussed.

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为用于 Hyper-Kamiokande 的 mPMT 模块的量产和质量保证做准备

Hyper-Kamiokande 将是下一代大型水切伦科夫探测器。它的目标是在许多领域取得令人振奋的成果，如研究 CP 违背、寻找质子衰变以及研究加速器、大气、太阳和天文中微子。超卡莫坎德远探测器将配备一种混合光传感器配置，将 20 英寸光电倍增管（PMT）与多 PMT 模块相结合，这是一种首次为 KM3NeT 实验设计的新技术。多光电倍增管模块基于一个装有 19 个小直径（7.7 厘米）光电传感器的压力容器，每个光电传感器的方向不同。光电倍增管的读出电子装置和高压电源也集成在模块内。它具有多种优势，如颗粒度提高、暗率降低、对地球磁场的敏感性减弱、时间分辨率提高以及视场几乎各向同性的定向信息。mPMT 原型的研发工作已基本完成，目前正在进行批量生产的准备工作。本文将讨论首批原型机的测试结果、质量保证程序和 Hyper-Kamiokande 的多 PMT 计划。

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

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.