Position-sensing transition-edge sensors for large-field, high-energy-resolution X-ray imaging spectroscopy

Enectali Figueroa-Feliciano*, Caroline K. Stahle, Fred M. Finkbeiner, Mary Li, Mark A. Lindeman, Nilesh Tralshawala, Carl M. Stahle

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)419-427
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 2000
EventX-Ray and Gamma-Ray Instrumentation for Astronomy XI - San Diego, CA,USA
Duration: Aug 2 2000Aug 4 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Position-sensing transition-edge sensors for large-field, high-energy-resolution X-ray imaging spectroscopy'. Together they form a unique fingerprint.

Cite this