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arXiv 2311.04424astro-ph.IM
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CMB-S4的TDM读出系统的端到端建模

End-to-End Modeling of the TDM Readout System for CMB-S4

David C. Goldfinger, Zeeshan Ahmed, Darcy R. Barron, W. Bertrand Doriese, Malcolm Durkin, Jeffrey P. Filippini, Gunther Haller, Shawn W. Henderson, Ryan Herbst,… 展开作者

David C. Goldfinger, Zeeshan Ahmed, Darcy R. Barron, W. Bertrand Doriese, Malcolm Durkin, Jeffrey P. Filippini, Gunther Haller, Shawn W. Henderson, Ryan Herbst, Johannes Hubmayr, Kent Irwin, Ben Reese, Leonid Sapozhnikov, Keith L. Thompson, Joel Ullom, Michael R. Vissers

AI总结:

针对CMB-S4实验中探测器数量增加对读出系统的更高要求,本文开发了预测TDM读出电路带宽与噪声性能的端到端模型,用于设定组件要求并验证了其与传统及原型硬件性能的一致性。

摘要:

CMB-S4实验正在开发下一代地基微波望远镜,以史无前例的灵敏度观测宇宙微波背景。这将需要将100 mK探测器的数量增加一个数量级,进而增加了对读出系统的要求。CMB-S4读出将使用时分多路复用(TDM),利用更快的开关和放大器来实现提高的多路复用因子。为便于设计新的读出系统,我们开发了一个模型,用于预测该电路及其互连的带宽和噪声性能。随后利用该模型设定各个组件的要求,以满足整个系统所需的性能。我们概述了该模型,并将模型结果与传统和原型读出硬件的性能进行了比较。

英文摘要:

The CMB-S4 experiment is developing next-generation ground-based microwave telescopes to observe the Cosmic Microwave Background with unprecedented sensitivity. This will require an order of magnitude increase in the 100 mK detector count, which in turn increases the demands on the readout system. The CMB-S4 readout will use time division multiplexing (TDM), taking advantage of faster switches and amplifiers in order to achieve an increased multiplexing factor. To facilitate the design of the new readout system, we have developed a model that predicts the bandwidth and noise performance of this circuity and its interconnections. This is then used to set requirements on individual components in order to meet the performance necessary for the full system. We present an overview of this model and compare the model results to the performance of both legacy and prototype readout hardware.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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