Design and fabrication of superconducting transition edge X-ray calorimeters

N. Tralshawala*, S. Aslam, R. P. Brekosky, T. C. Chen, E. Figueroa Feliciano, F. M. Finkbeiner, M. J. Li, D. B. Mott, C. K. Stahle, C. M. Stahle

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

28 Scopus citations


We report on progress made so far at NASA Goddard Space Flight Center towards the development of arrays of X-ray microcalorimeters as candidates for the high-resolution X-ray spectrometer on the Constellation-X mission. In the design concept presently under consideration, the microcalorimeter consists of (i) a Bi/Cu multilayer absorber for stopping and thermalizing the incident X-rays, (ii) an e-beam evaporated Mo/Au proximity bilayer with sputtered Nb leads for sensing the resultant temperature rise, and (iii) a silicon nitride membrane to provide a weak thermal link to the sink temperature so that the calorimeter can return to its equilibrium temperature. Fabrication details and preliminary results are reported.

Original languageEnglish (US)
Pages (from-to)188-191
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Apr 7 2000
Event8th International Workshop on Low Temperature Detectors (LTD-8) - Dalfsen, Neth
Duration: Aug 15 1999Aug 20 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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