Software-defined Radio Readout System for the ECHo Experiment

Abstract

Metallic magnetic calorimeters (MMCs) are cryogenic detectors that offer an excellent energy resolution, a signal rise time of <100 ns, a high dynamic range and almost optimal linearity. MMCs are of high interest for many experiments. One of them, the ECHo experiment, requires the utilization of large MMC detector arrays. The readout of such MMC arrays is a challenging task, which can be tackled using software-defined radios (SDRs). Though SDR is a well-known approach in communications engineering, a dedicated implementation for frequency division multiplexed readout of MMCs is new and one of the technological key elements of the ECHo project. ECHo will be the first experiment to use microwave SQUID multiplexed MMC detectors and therefore pioneering the hardware, firmware and software development in this domain. This paper presents the detailed concepts and current status of the development.

References in corpus (2)

• The Electron Capture ${}^{163}$Ho Experiment ECHo: an overview
• High-resolution kaonic-atom x-ray spectroscopy with transition-edge-sensor microcalorimeters

Cited by in corpus (8)

• Versatile Configuration and Control Framework for Real Time Data Acquisition Systems
• Flux ramp modulation based MHz frequency-division dc-SQUID multiplexer
• DTS-100G -- A versatile heterogeneous MPSoC board for cryogenic sensor readout
• Online Demodulation and Trigger for Flux-ramp Modulated SQUID Signals
• Flux ramp modulation based hybrid microwave SQUID multiplexer
• Development and characterisation of high-resolution microcalorimeter detectors for the ECHo-100k experiment
• Full-Scale Readout Electronics for the ECHo-100k Experiment
• Simultaneous MMC readout using a tailored μMUX based readout system