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18 July 2000 Toward a cryogenic imaging array of transition edge x-ray microcalorimeters
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Abstract
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 voltage biased superconducting transition edge microcalorimeter, operated at sub-Kelvin temperatures. Baseline for the imaging function is an array of these calorimeters, read out using SQUID amplifiers. Based on the performance of and experience with single-pixel micro calorimeters, we discuss new design concepts and read-out of imaging arrays of micro calorimeters. Critical design elements are the thermal transport from the pixels to the bath, operating temperature and cross talk. The requirements of a SQUID read-out system for the XEUS spectrometer are addressed and the areas where development is needed are identified.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Marcel P. Bruijn, Wouter Bergman Tiest, Henk F.C. Hoevers, Jan van der Kuur, Willem A. Mels, and Piet A. J. de Korte "Toward a cryogenic imaging array of transition edge x-ray microcalorimeters", Proc. SPIE 4012, X-Ray Optics, Instruments, and Missions III, (18 July 2000); https://doi.org/10.1117/12.391550
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