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    User name peter

    Log entry time 08:02:48 on October24,2002

    Entry number 88938

    keyword=shift summary


    
00:00	Shift begins with run # 2717 in progress.
    

    
00:20	MCC called to say they are taking beam away for a few minutes to do a QE measurement.


    06:18 High voltage problem in the left arm - all the high voltages displayed seemed to have tripped, although the power supply was still 'ON'. We turned the HV off and then back on again - eventually everything went back to their normal operating parameters. Lost 8 minutes of data taking capability.

    06:30 Left arm Q1 crashed. The instructions to reset it remotely have disappeared from the counting house. After talking to the run coordinator, we have paged the tech on-call for assistance.

    07:56 Mark Stevens was unable to reset the Q1 remotely and so we have asked for a controlled access to reset the power supply.


    
Run History - Q3D_d40 Kinematics
    

    
Run # 2717	Good; 1M events; average current 95uA.
    
Run # 2718	Good; 1M events; average current 101uA.
    
Run # 2719	Good; 1M events; average current 93uA.
    
Run # 2720	Good; 1M events; average current 92uA.
    
Run # 2721	Good; 1M events; average current 84uA.
    
Run # 2722	Good; 1M events; average current 98uA.
    
Run # 2723 	Junk; TS0 not responding, so run aborted. 
    
Run # 2724	Scintillator efficiency run.
    
Run # 2725	Stopped early due to high voltage problem in left arm.
    
Run # 2726	Stopped early due to left Q1 crash.