The long trace profiler (LTP) is the instrument of a choice for the surface figure measurement of grazing incidence mirrors. The modification of conventional LTP, the vertical-scan LTP, capable of measuring the surface figure of replicated shell mirrors is now in operation at Marshall Space Flight Center. Sources of systematic error for vertical-scan LTP are discussed. Calibration method using a test flat mirror and results of measurements are presented.


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    Title :

    Calibration of a Vertical-Scan Long Trace Profiler at MSFC


    Contributors:

    Conference:

    4th SPIE Conference on Instruments, Methods and Missions for Astrobiology ; 2001 ; San Diego, CA, United States


    Publication date :

    2001-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






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