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Array-scale performance of TES X-ray Calorimeters Suitable for Constellation-XHaving developed a transition-edge-sensor (TES) calorimeter design that enables high spectral resolution in high fill-factor arrays, we now present array-scale results from 32-pixel arrays of identical closely packed TES pixels. Each pixel in such an array contains a Mo/Au bilayer with a transition temperature of 0.1 K and an electroplated Au or Au/Bi xray absorber. The pixels in an array have highly uniform physical characteristics and performance. The arrays are easy to operate due to the range of bias voltages and heatsink temperatures over which solution better than 3 eV at 6 keV can be obtained. Resolution better than 3 eV has also been obtained with 2x8 time-division SQUID multiplexing. We will present the detector characteristics and show spectra acquired through the read-out chain from the multiplexer electronics through the demultiplexer software to real-time signal processing. We are working towards demonstrating this performance over the range of count rates expected in the observing program of the Constellation-X observatory. We mill discuss the impact of increased counting rate on spectral resolution, including the effects of crosstalk and optimal-filtering dead time.
Document ID
20080043955
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Kilbourne, C. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bandler, S. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brown, A. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chervenak, J. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Eckart, M. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Finkbeiner, F. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Iyomoto, N.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kelley, R. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Porter, F. S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smith, S. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Doriese, W. B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Irwin, K. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
August 18, 2008
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Applied Superconductivity
Location: Chicago, IL
Country: United States
Start Date: August 18, 2008
End Date: August 22, 2008
Distribution Limits
Public
Copyright
Other

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