Toward a cryogenic imaging array of transition edge x-ray microcalorimeters

Details Toward a cryogenic imaging array of transition edge x-ray microcalorimeters Toward a cryogenic imaging array of transition edge x-ray microcalorimeters

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4012..145b&link_type=abstract

Proc. SPIE Vol. 4012, p. 145-153, X-Ray Optics, Instruments, and Missions III, Joachim E. Truemper; Bernd Aschenbach; Eds.

Physics

Optics

1

Scientific paper

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.

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