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Proceedings Paper

Position-sensing transition-edge sensors for large-field high-energy-resolution x-ray imaging spectroscopy
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Paper Abstract

In the X-ray astrophysics community, the desire for wide- field, high-resolution, X-ray imaging spectrometers has been growing for some time. We present a concept for such a detector called a Position-Sensing Transition-edge sensor (PoST). A PoST is a calorimeter consisting of two Transition- Edge Sensors (TESs) on the ends of a long absorber to do one dimensional imaging spectroscopy. Comparing the rise time and energy estimates obtained from each TES for a given event, the position of that event in the PoST is determined. Energy is inferred from the sum of the two signals on the TESs. We have designed 7, 15, and 32 pixel PoSTs using our Mo/Au TESs and bismuth absorbers. We discuss the theory, modeling, operation and readout of PoSTs and the latest results from our development.

Paper Details

Date Published: 13 December 2000
PDF: 9 pages
Proc. SPIE 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, (13 December 2000); doi: 10.1117/12.409138
Show Author Affiliations
Enectali Figueroa-Feliciano, NASA Goddard Space Flight Ctr. and Stanford Univ. (United States)
Caroline Kilbourn Stahle, NASA Goddard Space Flight Ctr. (United States)
Fred M. Finkbeiner, NASA Goddard Space Flight Ctr. and Univ. of Maryland/College Park (United States)
Mary J. Li, NASA Goddard Space Flight Ctr. and Raytheon ITSS (United States)
Mark A. Lindeman, NASA Goddard Space Flight Ctr. and National Academy of Sciences (United States)
Nilesh Tralshawala, NASA Goddard Space Flight Ctr. and Raytheon ITSS (United States)
Carl Michael Stahle, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 4140:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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