The next-generation microcalorimeter array of XRS on Astro-E2

C. K. Stahle*, C. A. Allen, K. R. Boyce, R. P. Brekosky, G. V. Brown, J. Cottam, E. Figueroa-Feliciano, M. Galeazzi, J. D. Gygax, M. B. Jacobson, R. L. Kelley, D. Liu, D. McCammon, R. A. McClanahan, S. H. Moseley, F. S. Porter, L. E. Rocks, A. E. Szymkowiak, J. E. Vaillancourt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The square-format 32-pixel microcalorimeter array at the focal plane of the high-resolution X-ray spectrometer on the Astro-E2 X-ray Observatory is the first of a new generation of silicon-based microcalorimeters. This array has numerous advantages over its predecessor, the bilinear array that was launched on Astro-E. Foremost among its benefits are: (1) the energy resolution is improved by a factor of two at 6keV (now 6eV FWHM), (2) the thermal time constant is a factor of two faster, and (3) each pixel has a Gaussian line response. We will discuss the design changes that have led to these and other advantages.

Original languageEnglish (US)
Pages (from-to)466-468
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
StatePublished - Mar 11 2004


  • Microcalorimeter array
  • Thermal detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


Dive into the research topics of 'The next-generation microcalorimeter array of XRS on Astro-E2'. Together they form a unique fingerprint.

Cite this