Physics – Optics
Scientific paper
Sep 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3766..152d&link_type=abstract
Proc. SPIE Vol. 3766, p. 152-159, X-Ray Optics, Instruments, and Missions II, Richard B. Hoover; Arthur B. Walker; Eds.
Physics
Optics
Scientific paper
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 combines an energy resolution of 5 eV for 8 keV x-rays and a count rate of at least 100 counts/pixel, are presented and discussed. The starting point for this study is the current progress in the field of single pixel micro-calorimeters employing voltage biased transition edge sensors. The design concepts originate from different philosophies for the thermal design and geometrical lay-out and will use state of the art micro-machining and lithography. Moreover, both from an electrical and a cooling point of view SQUID read-out will be the challenge and grouping of pixels might be considered.
Bento A. C.
Bleeker Johan A.
Bruijn Marcel P.
de Korte Piet A.
Hoevers Henk F.
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