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    User name Jack

    Log entry time 10:18:03 on June 17, 2008

    Entry number 241946

    keyword=Detector gas systems shut down

    Yesterday I shut down the FPP gas system. No gas is flowing. For the VDC gas system I bypassed the ethanol bubbler and purged the ethane gas lines. The VDCs now have pure argon flowing through them. The carbon-dioxide flow to the Gas Cerenkov counters was turned down to about 1/3 of what it was. The VDC high voltage power supplies were switched off and should remain off until ethane and ethanol are again connected to the VDC gas system.