低能背景与两通道低阈值热力学探测器中的多余噪声
仪器与探测器
2025-04-07 v2
摘要
我们描述了在基于过渡边沿传感器的两通道硅无热声检测器（375 meV基线能量分辨率）中观察到的低能 excess (LEE) 事件、背景事件以及噪声。我们测量了两种不同的 LEE population：一种是“共享”多通道事件，其脉冲形状与基板无热声事件相符；另一种是亚 eV 级事件，几乎仅耦合到单个通道，脉冲形状显著更快。这类“单事件”与位于铝无热声收集鳍片内的事件相符。类似地，我们测得的探测器噪声高于理论预期。测得的噪声可分为无相关分量（符合小能量沉积于无热声传感器本身的散粒噪声）和有相关分量（符合硅基板声子系统中能量沉积的散粒噪声）。
引用
@article{arxiv.2410.16510,
title = {Low Energy Backgrounds and Excess Noise in a Two-Channel Low-Threshold Calorimeter},
author = {Robin Anthony-Petersen and Clarence L. Chang and Yen-Yung Chang and Luke Chaplinsky and Caleb W. Fink and Maurice Garcia-Sciveres and Wei Guo and Scott A. Hertel and Xinran Li and Junsong Lin and Marharyta Lisovenko and Rupak Mahapatra and William Matava and Daniel N. McKinsey and David Z. Osterman and Pratyush K. Patel and Bjoern Penning and Mark Platt and Matt Pyle and Yinghe Qi and Maggie Reed and Ivar Rydstrom and Roger K. Romani and Bernard Sadoulet and Bruno Serfass and Peter Sorensen and Burkhant Suerfu and Vetri Velan and Gensheng Wang and Yue Wang and Samuel L. Watkins and Michael R. Williams},
journal= {arXiv preprint arXiv:2410.16510},
year = {2025}
}
备注
12 pages, 12 figures