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    User name Jack

    Log entry time 19:31:26 on February 3,2002

    Entry number 81667

    keyword=Gas mixing system gas

    Bogdan still could not see any hits in the VDCs. Going out to the gas shed again, I
    found a nitrogen cylinder hooked up to the argon lines. I replaced the nitrogen
    cylinder with an argon cylinder and purged the mixing system. I could see the effect
    on the flow controller. I have set the flow controllers back to their previous settings.
    Bogdan and Pete are presently purging the VDC gas delivery line in the hall.