The Sliding Flux Ramp Demodulation Algorithm with High Sampling Rate in Microwave SQUID Multiplexer

Guofu Liao; Congzhan Liu; Zhengwei Li; Daikang Yan; Xiangxiang Ren; Yongjie Zhang; Laiyu Zhang; Yu Xu; Shibo Shu; He Gao; Yifei Zhang; Xuefeng Lu; Xufang Li; He Xu; Di Wu

doi:10.1007/s10686-025-09986-8

The Sliding Flux Ramp Demodulation Algorithm with High Sampling Rate in Microwave SQUID Multiplexer

High Energy Physics - Experiment 2025-02-19 v1 Instrumentation and Methods for Astrophysics

Authors: Guofu Liao , Congzhan Liu , Zhengwei Li , Daikang Yan , Xiangxiang Ren , Yongjie Zhang , Laiyu Zhang , Yu Xu , Shibo Shu , He Gao , Yifei Zhang , Xuefeng Lu , Xufang Li , He Xu , Di Wu

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Abstract

Microwave SQUID Multiplexing (uMUX) is a widely used technique in the low temperature detectors community as it offers high capacity of reading out large scale Transition-Edge Sensor (TES) arrays. In this paper, we propose a Sliding Flux Ramp Demodulation (SFRD) algorithm for uMUX readout system. It can achieve a sampling rate in the order of MHz while maintaining a multiplexing ratio about one thousand. Advancing of this large array readout technique makes it possible to observe scientiffc objects with improved time resolution and event count rate. This will be highly helpful for TES calorimeters in X-ray applications, such as X-ray astrophysics missions.

Keywords

superconducting quantum interference devices proper orthogonal decomposition detector readout electronics

Cite

@article{arxiv.2502.12550,
  title  = {The Sliding Flux Ramp Demodulation Algorithm with High Sampling Rate in Microwave SQUID Multiplexer},
  author = {Guofu Liao and Congzhan Liu and Zhengwei Li and Daikang Yan and Xiangxiang Ren and Yongjie Zhang and Laiyu Zhang and Yu Xu and Shibo Shu and He Gao and Yifei Zhang and Xuefeng Lu and Xufang Li and He Xu and Di Wu},
  journal= {arXiv preprint arXiv:2502.12550},
  year   = {2025}
}

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12 pages, 5 figures, published on Experimental Astronomy

The Sliding Flux Ramp Demodulation Algorithm with High Sampling Rate in Microwave SQUID Multiplexer

Abstract

Keywords

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