Large-absorber TES x-ray microcalorimeters and the micro-x detector array

M. E. Eckarf, J. S. Adams, S. R. Bandler, R. R. Brekosky, A. D. Brown, J. A. Chervenak, A. J. Ewin, F. M. Finkbeiner, R. L. Kelley, C. A. Kilbourne, F. S. Porter, J. E. Sadleir, S. J. Smith, E. Figueroa-Fehciano, R. Wikus

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


We present experimental results and designs of large-absorber transition-edge-sensor (TES) X-ray microcalorimeters. Much of our effort has focused on developing close-packed arrays of 250 - 300 μm-sized pixels suitable for the X-ray Microcalorimeter Spectrometer (XMS) on the International X-ray Observatory. These efforts have produced devices with the requisite energy resolution of ≲ 2.5 eV (FWHM) at 6 keV. There are several upcoming applications, however, that require arrays composed of significantly larger pixels. In this contribution we present experimental results from 490 μm-sized pixels that have attained 3.5 eV energy resolution at 6 keV. These devices are precursors to the pixels that are being developed for the XMS extended array. In addition, we briefly describe detector designs for the Micro-X sounding rocket experiment, which also requires an array of large-area TES microcalorimeters.

Original languageEnglish (US)
Title of host publicationLow Temperature Detectors LTD-13 - Proceedings of the 13th International Workshop
Number of pages4
StatePublished - 2009
Event13th International Workshop on Low Temperature Detectors, LTD-13 - Stanford, CA, United States
Duration: Jul 20 2009Jul 24 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other13th International Workshop on Low Temperature Detectors, LTD-13
Country/TerritoryUnited States
CityStanford, CA


  • Low-temperature detectors
  • Microcalorimeters
  • Transition-edge sensors
  • X-ray spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Large-absorber TES x-ray microcalorimeters and the micro-x detector array'. Together they form a unique fingerprint.

Cite this