The DarkSide-20k experiment aims to the direct WIMP detection in extremely low background conditions, using a Time Projection Chamber (TPC) filled with 40 tons of Liquid Argon and equipped with more than 200000 Silicon Photomultipliers (SiPMs) operated at cryogenic temperature. Since many years, the Bruno Kessler Foundation has been involved in the development of different kind of SiPMs sensitive to different wavelengths with low dark count rate and correlated noise. After a long and successful R&D, excellent results have been obtained, fully matching the specifications required by a background-free liquid argon experiment. The TPC will be instrumented with 8280 Photo Detection Modules each made by a SiPM tile of 25 cm 2 and a Front End Board, in an acrylic mechanical structure. A dedicated cryogenic electronics with an optical transmission of the signal has been developed to read out the large SiPM area and reduce the mass of the cables in the cryostat due to...

中文翻译：

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用于Dark Side-20k SiPM读数的低温电子设备

DarkSide-20k实验旨在在极低的背景条件下直接进行WIMP检测，使用装有40吨液态氩并配备了20万多个在低温下运行的硅光电倍增器（SiPM）的定时投射室（TPC）。多年来，布鲁诺·凯斯勒基金会（Bruno Kessler Foundation）参与了对不同波长，低暗计数率和相关噪声敏感的各种SiPM的开发。经过长期成功的研发，已经获得了出色的结果，完全符合无背景液氩实验所需的规格。TPC将配备8280个光电检测模块，每个模块由25 cm 2的SiPM瓷砖和一个前端板制成，采用丙烯酸机械结构。