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    User name jpchen

    Log entry time 12:43:04 on November 6,2006

    Entry number 188993

    keyword=cryotarget/CHL and vacuum

    The target warmed up to about 50-60K. When pressure went to above 260psi, Before it reach the vent point, I opened vent valve twice to get it down to 170 psi. It continued up to 220-230 psi. CHL came back. We are now 9.5K abnd 47 psi.
    Peter Knudsen called that they still have problem and will shut down for about one hour.
    At the time when the target warmed up quickly, the scattering chamber vacuum went up to 500 mtau then came back down. It is 2X10-6 now.