The Subscale Beryllium Mirror Demonstrator (SBMD) was developed in support of the Next Generation Space Telescope program. The goal was to produce a 0.5 m class, ultra lightweight (<12 kg/sq m), beryllium mirror that could be operated at 35 K. The mirror, developed by Ball Aerospace, has been cryogenically tested at the Marshall Space Flight Center (MSFC) a total of three times. The first two tests established the cryogenic performance and repeatability of the SBMD. Between the second and third tests, the mirror was cryo-figured. Thus, the third test measured the performance of the mirror with cryo-figuring applied. This paper will describe the test goals, the test instrumentation, and the test results (low & high order figure and radius of curvature) for all three cryogenic tests.


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    Title :

    MSFC SBMD Cryogenic Test Data Review


    Contributors:

    Conference:

    MSFC Technology Days ; 2001 ; Huntsville, AL, United States


    Publication date :

    2001-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    MSFC COI NMSD Cryogenic Test Data Review

    Hadaway, James B. / Stahl, H. Philip | NTRS | 2001


    Cryogenic Technology Research at Msfc

    R. L. Gause / D. A. Gilstad / E. H. Hyde et al. | NTIS | 1968




    Cryogenic technology research at MSFC

    Gause, R. L. / Gilstad, D. A. / Hyde, E. H. et al. | NTRS | 1968