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    User name j. singh

    Log entry time 05:09:35 on February 8,2003

    Entry number 95279

    keyword=Reference Cell Problem

    Reference Cell is behaving like it is broken.

    0422 Request Beam Off & Masked Target, Moving to Ref Cell Position
    0429 @ Ref Cell Pos and Raster is ON
    0436 Started EMPTY Ref Cell run 1830
    0440 Pressures were okay at very beginning of run. Then within a minute, the vacuum pressure and gas pressure were around 760 torr and 000 psig and fluctuating wildly. Cell Exodus is okay.

    0445 Tested Ref Cell.
    Vented ref cell. vacuum = 765 torr, gas = -003 psig
    Tried to Evacuate Ref Cell, couldn't pump down below vacuum = 250 torr
    Vented ref cell. vacuum = 765 torr, gas = -003 psig
    Ref cell system is in the "vented" state.

    0450 Moved back to Pol 3He Pos.