We report on the development of an imaging detector with high energy resolution for the X-
ray Evolving Universe Spectroscopy Mission (XEUS). The type of detector we are studying is …

A feasibility study of an imaging 32 by 32 pixel micro-calorimeter array, intended for the
XEUS mission is presented. Three different concepts, theoretically leading to a detector that …

This thesis describes the development and device physics of an X-ray microcalorimeter. This
is a device for measuring the energy of X-rays. The microcalorimeter measures the …

A feasibility study of an imaging 32× 32 pixel micro-calorimeter array, intended for the XEUS
mission is presented. Three different concepts, theoretically leading to an imaging …

Development of single pixel x-ray microcalorimeters at our institutes, employing
superconducting-to-normal phase transition thermometers operating at about 100 mK …

Individual x-ray calorimeters based on superconducting transition-edge sensors (TES) have
already demonstrated the spectral resolution, speed, and quantum efficiency needed for …

Four astrophysics missions are currently being studied by NASA as candidate large
missions to be chosen in the 2020 astrophysics decadal survey. 1 One of these missions is …

The International X‐Ray Observatory (IXO) is under formulation by NASA, ESA and JAXA for
deployment in 2022. IXO emerged over the last 18 months as the NASA Constellation‐X and …

We have been developing x-ray microcalorimeters for the Constellation-X mission. Devices
based on superconducting transition-edge sensors (TES) have demonstrated the potential …

We present measurements from a series of transition-edge x-ray microcalorimeters
designed for optimal energy resolution. We used the geometry of the sensors to control their …