Magnetic microcalorimeters (MMCs) are cryogenic, energy-dispersive single-particle detectors providing excellent energy resolution, intrinsically fast signal rise time, quantum efficiency close to 100\%, large dynamic range as well as almost ideal linear response. One of the remaining challenges to be overcome to ultimately allow for the utilization of large-scale MMC based detector arrays with thousands to millions of individual pixels is the realization of a SQUID based multiplexing technique particularly tailored for MMC readout. Within this context, we report on the first truly multiplexed readout of an MMC based detector array using a frequency-division multiplexing approach realized by a custom microwave SQUID multiplexer based readout system.
@article{arxiv.2211.07127,
title = {Simultaneous MMC readout using a tailored {\mu}MUX based readout system},
author = {Daniel Richter and Mathias Wegner and Felix Ahrens and Christian Enss and Nick Karcher and Oliver Sander and Constantin Schuster and Marc Weber and Thomas Wolber and Sebastian Kempf},
journal= {arXiv preprint arXiv:2211.07127},
year = {2023}
}
Comments
Conference: ASC2022 (accepted for publication in IEEE Transactions on Applied Superconductivity)