ACIS: Advanced Camera for Imaging and Spectroscopy
CCD imaging detector on Chandra (PI: G.Garmire, Penn State U., with the collaboration of MIT). Contains two arrays: a square for imaging (ACIS-I) and a narrower strip (ACIS-S), primarily for readout of the diffraction gratings - primarily the HETG, but also the LETG.
Garmire G.P., et al., 2000, AIAA, Space Programs and Technologies Conference, Huntsville AL, Mar.24-27
Townsley, L. K., Broos, P. S., Garmire, G. P., Nousek, J. A. 2000, ApJ Letters, 534, L139
Bautz M.W., et al., 1998, X-ray Optics, Instruments and Missions, ed. R.B. Hoover and A.B. Walker, Proc. SPIE, 3444, 210
See the Proposers' Observatory Guide (POG) and the Penn State ACIS website for technical details. The CXC ACIS Calibration webpages have the latest ACIS calibration status.