Oscura 实验的 Skipper-CCD 传感器：需求与初步测试
仪器与探测器
2024-04-12 v2
摘要
Oscura 是一个拟议的多公斤级 skipper-CCD 实验，旨在进行暗物质（DM）直接探测搜索，其 10 kg 探测器阵列将对亚 GeV 暗物质-电子相互作用达到前所未有的灵敏度。Oscura 计划运行于 SNOLAB，其覆盖深度为 2070 m，目标是在完整 30 kg·年曝光量下，于 2–10 电子电离信号区域的每个电子区间内背景事件少于一个，辐射背景率为 0.01 dru。为实现该目标，Oscura 必须应对各类潜在背景事件来源，包括仪器本底。本工作中，我们讨论了主要的仪器本底来源及其控制策略，并确立了对传感器性能参数的一组约束。我们展示了首批制备的 Oscura 原型传感器的测试结果，在既定约束背景下评估其性能，并基于这些结果估算 Oscura 的仪器本底。
引用
@article{arxiv.2304.04401,
title = {Skipper-CCD Sensors for the Oscura Experiment: Requirements and Preliminary Tests},
author = {Brenda A. Cervantes-Vergara and Santiago Perez and Juan Estrada and Ana Botti and Claudio R. Chavez and Fernando Chierchie and Nathan Saffold and Alexis Aguilar-Arevalo and Fabricio Alcalde-Bessia and Nicolás Avalos and Oscar Baez and Daniel Baxter and Xavier Bertou and Carla Bonifazi and Gustavo Cancelo and Nuria Castelló-Mor and Alvaro E. Chavarria and Juan Manuel De Egea and Juan Carlos D'Olivo and Cyrus Dreyer and Alex Drlica-Wagner and Rouven Essig and Ezequiel Estrada and Erez Etzion and Paul Grylls and Guillermo Fernandez-Moroni and Marivi Fernández-Serra and Santiago Ferreyra and Stephen Holland and Agustín Lantero Barreda and Andrew Lathrop and Ian Lawson and Ben Loer and Steffon Luoma and Edgar Marrufo Villalpando and Mauricio Martinez Montero and Kellie McGuire and Jorge Molina and Sravan Munagavalasa and Danielle Norcini and Alexander Piers and Paolo Privitera and Dario Rodrigues and Richard Saldanha and Aman Singal and Radomir Smida and Miguel Sofo-Haro and Diego Stalder and Leandro Stefanazzi and Javier Tiffenberg and Michelangelo Traina and Sho Uemura and Pedro Ventura and Rocío Vilar Cortabitarte and Rachana Yajur},
journal= {arXiv preprint arXiv:2304.04401},
year = {2024}
}