Speaker
Description
The SLAC Microresonator RF (SMuRF) electronics is a warm readout platform deployed at scale in CMB experiments to drive ~2000-channel microwave SQUID multiplexed transition-edge sensor arrays. Building on this foundation, the platform is being extended to support a broader range of superconducting sensors relevant to dark matter and rare-event searches, including fast pulse reconstruction in low-mass calorimeters, continuous-wave dispersive monitoring of qubit-based sensors such as SQUATs and QPDs, and pulse-driven control of single microwave photon detectors. I will review SMuRF and show recent results from operation with other sensing modalities, including MKIDs and SQUATs on RFSoC-based prototypes. I will then introduce SPECTRA, a multi-institutional effort with Fermilab (QICK), the University of Chicago, and partner groups across the dark matter and line-intensity-mapping user communities. SPECTRA will be a fully RFSoC-based, multi-mode open-source stack running on evaluation boards, QICK hardware, and ATCA-deployable carriers.