arXiv 2608.25013astro-ph.IM

用于BICEP阵列90/150 GHz接收机的高级时分复用读出链

Advanced Time-Division Multiplexed Readout Chain for the BICEP Array 90/150 GHz Receiver

B. Cantrall, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. A. Bischoff, D. Beck, J. J. Bock, V. Buza, J. R. Cheshire, J. Connors, J. Cornelis… 展开作者

B. Cantrall, P. A. R. Ade, Z. Ahmed, M. Amiri, D. Barkats, R. Basu Thakur, C. A. Bischoff, D. Beck, J. J. Bock, V. Buza, J. R. Cheshire, J. Connors, J. Cornelison, M. Crumrine, A. J. Cukierman, E. Denison, W. B. Doriese, L. Duband, M. Durkin, M. A. Echter, M. Eiben, B. D. Elwood, S. Fatigoni, J. P. Filippini, A. Fortes, J. Gard, M. Gao, C. Giannakopoulos, N. Goeckner-Wald, D. C. Goldfinger, S. Gratton, J. A. Grayson, A. Greathouse, P. K. Grimes, G. Haller, M. Halpern, S. Henderson, T. D. Hoang, J. Hubmayr, H. Hui, K. D. Irwin, M. Izquierdo Poza, J. H. Kang, K. S. Karkare, S. Kefeli, J. M. Kovac, C. Kuo, K. Lasko, K. Lau, M. Lautzenhiser, T. Liu, S. C. Mackey, N. Maher, K. G. Megerian, L. Minutolo, L. Moncelsi, Y. Nakato, H. T. Nguyen, R. O'Brient, S. N. Paine, A. Patel, M. A. Petroff, A. R. Polish, T. Prouve, C. Pryke, C. D. Reintsema, T. Romand, M. Salatino, L. Sapozhnikov, A. Schillaci, B. Schmitt, R. Shi, B. Singari, A. Soliman, T. St. Germaine, A. Steiger, B. Steinbach, R. Sudiwala, K. L. Thompson, C. Tucker, A. D. Turner, C. Vergès, A. G. Vieregg, A. Wandui, A. C. Weber, J. Willmert, W. L. K. Wu, H. Yang, C. Yu, L. Zeng, C. Zhang, S. Zhang

首次发表 2026-08-27

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中文总结 AI 辅助

本研究介绍用于BICEP阵列90/150 GHz接收机的高级TDM读出链，其可抑制读出系统误差，升级后性能优异，将为未来CMB观测站建立新型低噪声高带宽TDM架构。

中文摘要 AI 辅助

本研究展示了BICEP阵列90/150 GHz接收机所用高级时分复用（TDM）读出链的当前性能。BA4-90/150计划于2026-2027年部署至南极，将采用光子噪声极限的喇叭耦合过渡边缘传感器（TES）探测器，以及升级后的基于直流超导量子干涉器件（DC SQUID）的TDM系统，用于绘制宇宙微波背景（CMB）图谱。该新型TDM系统可抑制读出诱导的系统误差，这类误差已在BICEP合作组生成的最敏感图谱噪声基底之上显现。改进内容包括更快的全差分SQUID设计、更高的TES信号放大倍数、更低的串扰，以及可减少行开关所需布线的分层行寻址。通过传统单端室温读出电子设备开展的测量显示，升级后的低温读出链性能不逊于甚至优于BICEP实验当前部署的TDM系统。SLAC国家加速器实验室正在开发的新型室温电子设备将提供匹配的全差分电路与更高带宽，降低射频干扰和混叠噪声贡献。该技术的在轨演示将为未来CMB观测站确立一种新型低噪声、高带宽TDM架构。

英文摘要

This work presents the current performance of the advanced time-division multiplexed (TDM) readout chain for the BICEP Array 90/150 GHz receiver. BA4-90/150, scheduled for deployment to the South Pole in 2026--27, will use photon-noise-limited, feedhorn-coupled transition edge sensor detectors and an upgraded DC SQUID-based TDM system to map the cosmic microwave background. This new TDM system mitigates readout-induced systematics that are beginning to emerge above the noise floor of the most sensitive maps produced by the BICEP collaboration. Improvements include faster, fully differential SQUID designs, higher TES signal amplification, reduced crosstalk, and hierarchical row-addressing that reduces wiring required for row switching. Measurements made through legacy single-ended warm readout electronics show the upgraded cryogenic readout chain performs as well as or better than the TDM system currently fielded on the BICEP experiment. New warm electronics currently in development at SLAC National Accelerator Laboratory will provide matched fully differential circuits and higher bandwidth, reducing RF susceptibility and aliased noise contributions. On-sky demonstration of this technology will establish a new low-noise, high-bandwidth TDM architecture for future CMB observatories.

补充信息

备注: 8 pages, 5 figures, SPIE conference proceedings