发表机构
Sapienza Università di Roma; INFN Sezione di Roma; Université Grenoble Alpes, CNRS, Grenoble INP, Institut Néel（罗马大学; 罗马国家核物理研究所; 格勒诺布尔阿尔卑斯大学、法国国家科学研究中心、格勒诺布尔理工学院、内耳研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究评估位置效应对BULLKID探测器能量刻度的影响，证明声子统计与收集变化可忽略，并澄清了$^{241}$Am与LED刻度差异的来源。
AI 中文摘要
BULLKID是一种低温固态探测器，基于硅片阵列并配备动力学电感探测器（KIDs），用于低质量暗物质搜索和相干弹性中微子-核散射。能量刻度可通过光学LED光子爆发进行，这些光子被衬底前几百纳米内吸收。使用$^{241}$Am伽马射线源进行的能量刻度显示与LED刻度存在$<10\%$的差异。Matava和Williams近期的一项研究表明，随相互作用位置变化的声音子统计和声音子收集可能解释这种差异。本工作评估了这些效应对BULLKID探测器刻度的影响，证明它们均具有可忽略的影响。我们澄清了$^{241}$Am刻度期间获得的关于观察到的差异来源的结果。
英文摘要
BULLKID is a cryogenic solid-state detector based on an array of silicon dice equipped with Kinetic Inductance Detectors (KIDs) for low-mass dark matter searches and coherent elastic neutrino-nucleus scattering. Energy calibration can be performed using optical LED photon bursts, which are absorbed within the first few hundred nanometers of the substrate. An energy calibration using a $^{241}$Am gamma-ray source revealed a $<10\%$ discrepancy with the LED calibration. A recent study by Matava and Williams suggested that phonon statistics and phonon collection varying with the interaction position could explain such a discrepancy. This work evaluates the impact of these effects on the calibration of the BULLKID detector, demonstrating they both have a negligible effect. We clarify the results obtained during the $^{241}$Am calibration regarding the origin of the observed discrepancy.
