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Session 34 - High Resolution X-ray Imaging & Spectroscopy with AXAF.
Oral session, Tuesday, June 10
North Main Hall F/G,
The ACIS is an advanced X-ray camera for the AXAF scheduled to be launched in 1998. The camera is composed of two arrays of CCDs, one optimized for imaging using four CCDs abutted in a square array, and a linear array of six CCDs optimized for iimaging the dispersed spectrum formed by the High and Medium Energy Transmission Grating Spectrometers. The imaging array is tipped with respect to the optical axis to better approximate the curved focal surface formed by the AXAF Wolter Type I optics. The spectroscopic array has a slight tilt to follow the Rowland circle of the grating focus. The CCD camera and electronics were built at the MIT Center for Space Research and Lincoln Laborator. Much of the thermal and mechanical design as well as the power system were carried out at Lockheed-Martin in Denver, Colorado. The CCDs have been calibrated at MIT and the synchrotron at BESSY in Berlin, Germany. The entire flight instrument has been calibrated at the XRCF facility at Marshall Space flight Center in Huntsville, Alabama. The alnticipated instrumen performance characteristics based on the calibration reluts will be pre A few examples of possible observations will werve to illustrate the great scientific capabilities of the AXAF.
