The state-of-the-art technology of X-ray microcalorimeters based on superconducting
transition-edge sensors (TESs), for applications in astrophysics and particle physics, is …

Improvements in superconductor device fabrication, detector hybridization techniques, and
superconducting quantum interference device readout have made square-centimeter-sized …

Review of superconducting transition-edge sensors for x-ray and gamma-ray spectroscopy -
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Abstract The European Research Council has recently funded HOLMES, a new experiment
to directly measure the neutrino mass. HOLMES will perform a calorimetric measurement of …

CMB-S4 is a proposed experiment to map the polarization of the Cosmic Microwave
Background (CMB) to nearly the cosmic variance limit for angular scales that are accessible …

X-ray emission spectroscopy (XES) is a powerful element-selective tool to analyze the
oxidation states of atoms in complex compounds, determine their electronic configuration …

Code-division multiplexing (CDM) offers a path to reading out large arrays of transition edge
sensor (TES) X-ray microcalorimeters with excellent energy and timing resolution. We …

We demonstrate very high resolution photon spectroscopy with a microwave-multiplexed
two-pixel transition-edge sensor (TES) array. We measured a 153 Gd photon source and …

The Lynx x-ray microcalorimeter (LXM) is an imaging spectrometer for the Lynx satellite
mission, an x-ray telescope being considered by NASA to be a new flagship mission. Lynx …

Frequency-domain multiplexing (fMux) is an established technique for the readout of large
arrays of transition-edge sensor (TES) bolometers. Each TES in a multiplexing module has a …