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    User name T.Chang

    Log entry time 05:25:09 on December 8,2000

    Entry number 53105

    keyword=dipole problem

    After the polarity changes, we cycled the quadrapoles, and having problem with the dipole current. The "calculated" current for the dipole appears to be 1116A for 3.3593 GeV, but when the current stablized, it only shows about 3.1GeV in the HAC panel. The lead A flow and lead B flow are both high.

    We tried to raise the current to 1200A manually, hoping that this will bring up the momentum. but unfortunately M3/M4 got over-temperatured. We called the technician for help. This was cured by resetting the power from the hall.

    The momentum display of the dipole still shows the same 3.1 GeV.