Advanced CCD imaging spectrometer (ACIS) instrument on the Chandra X-ray Observatory

G. P. Garmire, M. W. Bautz, P. G. Ford, J. A. Nousek, G. R. Ricker

Research output: Contribution to journalConference articlepeer-review

269 Scopus citations


The ACIS instrument has been operating for three years in orbit, producing high quality scientific data on a wide variety of X-ray emitting astronomical objects. Except for a brief period at the very beginning of the mission when the CCDs were exposed to the radiation environment of the Outer van Allen Belts which resulted in substantial radiation damage to the front illuminated CCDs, the instrument has operated nearly flawlessly. The following report presents a description of the instrument, the current status of the instrument calibration and a few highlights of the scientific results obtained from the Guaranteed Observer Time.

Original languageEnglish (US)
Pages (from-to)28-44
Number of pages17
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number1
StatePublished - 2002
EventX-ray and Gamma-Ray telescopes and Instruments for Astronomy - Waikoloa, HI, United States
Duration: Aug 24 2002Aug 28 2002

All Science Journal Classification (ASJC) codes

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


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