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Calibration Results for the AXAF Flux Contamination MonitorThe AXAF Flux Contamination Monitor (FCM) serves the purposes of transferring the absolute flux calibration from the ground calibration at the X-Ray Calibration Facility (XRCF) to operation on orbit and of detecting any changes in molecular contamination of the High-Resolution Mirror Assembly (HRMA) between ground calibration and the post-launch activation. We describe the design, construction, and characterization of the FCM radioactive sources, and their placement on the Forward Contamination Cover (FCC). We present results from FCM measurements with the AXAF focal-plane instruments, particularly the AXAF CCD Imaging Spectrometer (ACIS), during the ground calibration phase at the XRCF in 1997. Finally, we describe the plans for FCM on-orbit measurements during observatory activation and for the subsequent analysis.
Document ID
19990102223
Acquisition Source
Marshall Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Elsner, R. F. (NASA Marshall Space Flight Center Huntsville, AL United States)
ODell, S. L. (NASA Marshall Space Flight Center Huntsville, AL United States)
Ramsey, B. D. (NASA Marshall Space Flight Center Huntsville, AL United States)
Tennant, A. F. (NASA Marshall Space Flight Center Huntsville, AL United States)
Weisskopf, M. C. (NASA Marshall Space Flight Center Huntsville, AL United States)
Kolodziejczak, J. J. (NASA Marshall Space Flight Center Huntsville, AL United States)
Swartz, D. A. (NASA Marshall Space Flight Center Huntsville, AL United States)
Engelhaopt, D. (NASA Marshall Space Flight Center Huntsville, AL United States)
Garmire, G. (NASA Marshall Space Flight Center Huntsville, AL United States)
Nousek, J. (NASA Marshall Space Flight Center Huntsville, AL United States)
Bautz, M. (NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1998
Subject Category
Optics
Distribution Limits
Public
Copyright
Other

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