用于 CADEx 实验的动感探测器:在 W 波段搜索轴子

IF 1.1 3区 物理与天体物理 Q4 PHYSICS, APPLIED
David Rodriguez, Marina C. de Ory, Beatriz Aja, Luisa de la Fuente, Juan Daniel Gallego, Enrique Villa, Juan Pablo Pascual, Eduardo Artal, Daniel Granados, Jesus Martin-Pintado, Alicia Gomez
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引用次数: 0

摘要

本文介绍了Canfrac轴子探测实验(CADEx)的探测器开发情况,该实验旨在探测W波段内的暗物质轴子和暗光子。该探测系统的概念验证基于一个块元动感探测器(LEKIDs)阵列。微带技术被用作读出方案,而接地平面则用作优化 W 波段光吸收的背短路。钛/铝双层材料用于确保 100 GHz 以下的探测。探测器阵列设计包括一个由 36 个探测器组成的内部活动部分,用于直接探测轴心信号,以及一个由 28 个盲像素组成的额外外缘,用于校准目的。报告介绍了纳米制造过程和初步低温表征,结果与频率设计十分吻合。测量的器件显示出 6 × 104 数量级的耦合品质因数、105 以上的内部品质因数和 3.3 pH/□ 的估计动感。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Kinetic Inductance Detectors for the CADEx Experiment: Searching for Axions in the W-Band

Kinetic Inductance Detectors for the CADEx Experiment: Searching for Axions in the W-Band

This paper presents the detector developments for the Canfrac Axion Detection Experiment (CADEx), aiming at detecting dark matter axions and dark photons within the W-band. A proof of concept of the detection system is based on an array of lumped-element kinetic inductance detectors (LEKIDs). Microstrip technology is used as read-out scheme, and the ground plane acts as backshort for optimizing optical absorption in the W-band. A titanium/aluminum bilayer is used for ensuring detection below 100 GHz. The detector array design includes an inner active section consisting of 36 detectors for direct detection of the axion signal and an additional outer rim of 28 blind pixels for calibration purposes. The nanofabrication process and a preliminary cryogenic characterization are presented, being the results in good agreement with the frequency design. Measured devices exhibit coupling quality factors of the order of 6 × 104, internal quality factors above 105 and an estimated kinetic inductance of 3.3 pH/□.

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来源期刊
Journal of Low Temperature Physics
Journal of Low Temperature Physics 物理-物理:凝聚态物理
CiteScore
3.30
自引率
25.00%
发文量
245
审稿时长
1 months
期刊介绍: The Journal of Low Temperature Physics publishes original papers and review articles on all areas of low temperature physics and cryogenics, including theoretical and experimental contributions. Subject areas include: Quantum solids, liquids and gases; Superfluidity; Superconductivity; Condensed matter physics; Experimental techniques; The Journal encourages the submission of Rapid Communications and Special Issues.
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