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Heat Sinking, Cross Talk, and Temperature Stability for Large, Close-Packed Arrays of MicrocalorimetersWe are developing large, close-packed arrays of x-ray transition-edge sensor (TES) microcalorimeters. In such a device, sufficient heat sinking is important to to minimize thermal cross talk between pixels and to stabilize the bath temperature for all pixels. We have measured cross talk on out 8 x 8 arrays and studied the shape and amount of thermal crosstalk as a function of pixel location and efficiency of electrothermal feedback. In this presentation, we will compare measurements made on arrays with and without a backside, heat-sinking copper layer, as well as results of devices on silicon-nitride membranes and on solid substrates, and we will discuss the implications for energy resolution and maximum count rate. We will also discuss the dependence of pulse height upon bath temperature, and the measured and required stability of the bath temperature.
Document ID
20080039186
Document Type
Conference Paper
Authors
Imoto, Naoko (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bandler, SImon (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brekosky, Regis (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chervenak, James (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Figueroa-Felicano, Enectali (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Finkbeiner, Frederick (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kelley, Richard (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kilbourne, Caroline (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Porter, Frederick (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sadleir, Jack (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smith, Stephen (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
July 22, 2007
Subject Category
Electronics and Electrical Engineering
Meeting Information
LTD-12 Conference(Paris)
Funding Number(s)
CONTRACT_GRANT: NNG06E090A
Distribution Limits
Public
Copyright
Other