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    User name R. Michaels

    Log entry time 16:03:18 on May21,2008

    Entry number 239107

    keyword=Run 1419 to check FPP

    Run 1419 & 1420 with 3 uA to check FPP. No, feedback doesn't
    work yet, but we want to see if FPP is getting better or worse in
    it's efficiency so we can react before techs go home.

    Question : is the gas bad after this morning's bottle change or
    is the FPP just recovering ? Look at derivative of the efficiency
    wrt time.

    Some other speculation: Since VDCs are ok and use Ar/Ethane those
    gases are probably ok, while FPP uses CO2/Ar, so maybe CO2 bad ???
    (Unless VDC not very sensitive to Ar pollution.) Hard to tell.