Demonstration of MHz frequency domain multiplexing readout of 37 transition edge sensors for high-resolution x-ray imaging spectrometers
نویسندگان
چکیده
We report on the development and demonstration of a MHz frequency domain multiplexing (FDM) technology to read out arrays cryogenic transition edge sensor (TES) X-ray microcalorimeters. In our FDM scheme, TESs are AC-biased at different resonant frequencies in low range through an array high-$Q$ LC resonators. The current signals all summed superconducting quantum interference devices (SQUIDs). have demonstrated for readout 31 pixels using room temperature electronics, filters TES developed SRON, SQUID from VTT. repeated this second setup with 37 pixels. spectral resolutions $@$ 5.9 keV $\Delta E_{\rm pix ~MUX}=2.14\pm0.03$ eV ~MUX}=2.23\pm0.03$ eV. results comparable other approaches. There is potential further improve resolution increase number multiplexed TESs, open up applications
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2021
ISSN: ['1520-8842', '0003-6951', '1077-3118']
DOI: https://doi.org/10.1063/5.0066240