用于过渡边缘传感器测热计的1820通道多路复用器的演示

IF 3.6 2区 物理与天体物理 Q2 PHYSICS, APPLIED
J. C. Groh, Z. Ahmed, J. Austermann, J. Beall, D. Daniel, S. M. Duff, S. W. Henderson, J. Hubmayr, R. Lew, M. Link, T. J. Lucas, J. A. B. Mates, M. Silva-Feaver, R. Singh, J. Ullom, L. Vale, J. Van Lanen, M. Vissers, C. Yu
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引用次数: 0

摘要

大多数过渡边缘传感器阵列的可扩展性受到多路复用技术的限制,该技术通过减少数量的电线和放大器将它们的信号组合在一起。在本文中,我们展示并展示了一种多路复用器设计,该多路复用器设计针对每个读出单元具有1820个传感器的过渡边缘传感器辐射热计进行了优化,比以前的最先进技术多了两倍。该设计针对宇宙微波背景成像应用进行了优化,它建立在以前的微波超导量子干涉器件多路复用器的基础上,通过将可用读出带宽加倍到完整的4-8 GHz倍频。通过实验室测试评估产率、灵敏度和串扰的关键性能指标,我们发现端到端可操作的探测器产率为78%,典型的最近邻串扰幅度为0.4%,由于多路复用器产生的中位白噪声水平为83 pA/Hz,相当于地面宇宙微波背景望远镜总系统噪声的估计贡献为4%。此外,我们确定了降低谐振器损耗的可能途径,以用于未来的低噪声设计。我们期望这些发展能够减轻系统的复杂性、低温要求和未来大型低温探测器阵列的成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Demonstration of a 1820 channel multiplexer for transition-edge sensor bolometers
The scalability of most transition-edge sensor arrays is limited by the multiplexing technology, which combines their signals over a reduced number of wires and amplifiers. In this Letter, we present and demonstrate a multiplexer design optimized for transition-edge sensor bolometers with 1820 sensors per readout unit, a factor of two more than the previous state-of-the-art. The design is optimized for cosmic microwave background imaging applications, and it builds on previous microwave superconducting quantum interference device multiplexers by doubling the available readout bandwidth to the full 4–8 GHz octave. Evaluating the key performance metrics of yield, sensitivity, and crosstalk through laboratory testing, we find an end-to-end operable detector yield of 78%, a typical nearest-neighbor crosstalk amplitude of ∼0.4%, and a median white noise level of 83 pA/Hz due to the multiplexer, corresponding to an estimated contribution of 4% to the total system noise for a ground-based cosmic microwave background telescope. Additionally, we identify a possible path toward reducing resonator loss for future designs with reduced noise. We expect these developments to alleviate the system complexity, cryogenic requirements, and cost of future large arrays of low temperature detectors.
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来源期刊
Applied Physics Letters
Applied Physics Letters 物理-物理:应用
CiteScore
6.40
自引率
10.00%
发文量
1821
审稿时长
1.6 months
期刊介绍: Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.
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