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    User name benoit

    Log entry time 08:05:51 on April 25,2004

    Entry number 83158

    keyword=owl shift summary

    L: B.Guillon
    T: D.MacKee
    W: I.Kanagawa / L.Bimbot

    -----------------

    00:00 waiting for beam
    00:20 MCC call. they will try to send us low current beam.
    00:45 MCC call. they still investigating the Hall C laser & will try to send 10 uA beam . but didn't succed
    02:15 MCC call, They still have trouble with the Hall C laser . no estimate of how long it will take.

    Then we decided to tabe DNL runs

    03:30 MCC call. The hall C laser is now OK. We will have the beam soon

    04:00 After we replace the Meantimer cable and restore the half gain HV-file
    det 1 and 12 on octant 1 are missing. Louis and Dave looked at the electronic cables but find nothing. For both detector, all the cfd signals are here.
    It certainly comes from the meantimer.
    04:15 Call NA electronics expert : Joachim
    04:20 We find the problem. It was the input cable of the meantimer 2 which was unplugged just before Joachim called us. Sorry Joachim to wake up you for nothing. Let's go to take production data.

    06:10 A lot of NA errors happenned on run 21616 .
    and we don't succed to stop this fury.
    I paged again Joachim.
    07:10 Joachim fixed the problem (instable cable). It should be OK now.




    ***** Runs taken :
    run 21611 : junk run
    run 21612 : Green blocks - DNL for french - NA meantimers 1-2-3-4
    run 21613 : test run - beam tuning
    run 21614 : test run - (det8-oct7 , det2-oct1, det12-oct1) are missing
    run 21615 : production run - (det8-oct7) are missing
    run 21616 : production run - (det8-oct7) are missing - a lot of NA errors
    run 21617 : test run
    run 21618 : production run - (det8-oct7) are missing - a lot of NA errors
    run 21619 : production run - (det8-oct7) are missing - BPM IOC crashed at the end
    run 21620 : production run - (det8-oct7) are missing