论文标题
Hamamatsu Vuv4 SIPM的性能检测液体氩气闪烁
Performance of Hamamatsu VUV4 SiPMs for detecting liquid argon scintillation
论文作者
论文摘要
检测光信号对于广泛的粒子探测器至关重要。特别是，对真空紫外线（VUV）光的有效检测将为当前正在开发的一些新型探测器提供新的机会，但在技术上具有挑战性。在本文中，我们表征了Hamamatsu Vuv4硅光电层流（SIPM）的性能，用于检测没有波长转移的Vuv Argon闪烁光。使用定制的低温放大器设计，我们在液体氩气中操作了两种VUV4 sipms型号，并彻底检查了它们对液体氩闪烁的直接敏感性。除了描述它们的低温性能外，我们还测量了光子检测效率为$ 14.7^{+1.1} _ { - 2.4} $％和$ 17.2^{+1.6} _ { - 3.0} $％在128 nm处的128 nm型号的VUV4型号的4 v型在4 v vuv4型号中，从而从无效的情况下，从未确定过度的效果，并不确定。
Detection of light signals is crucial to a wide range of particle detectors. In particular, efficient detection of vacuum ultraviolet (VUV) light will provide new opportunities for some novel detectors currently being developed, but is technically challenging. In this article, we characterized the performance of Hamamatsu VUV4 silicon photomultipliers (SiPMs) for detecting VUV argon scintillation light without wavelength shifting. Using a customized cryogenic amplifier design, we operated two models of VUV4 SiPMs inside liquid argon and thoroughly examined their direct sensitivities to liquid argon scintillation. In addition to describing their cryogenic performance, we measured a photon detection efficiency of $14.7^{+1.1}_{-2.4}$% and $17.2^{+1.6}_{-3.0}$% at 128 nm for these two VUV4 models for operation at 4 V of overvoltage, with the main uncertainty arising from the SiPM reflectivity for VUV light.
