• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name aniol

    Log entry time 00:01:32 on June16,2004

    Entry number 125907

    keyword=shift summary

    15:29 run 2164 prod started
    16;21 STOP RUN 2164 - SPETUM CONTROLS FIELDS GO ALL WHITE
    16:46 Find that the right septum upper coil is above 8K. The temperatures were ok before the ioc crash. We had just looked at them. When ioc control returned the temp was too high to allow the right septum power supply to be turned on.
    
    17:05 start run 2165 L septum ramping, right septum off not production
    17;17 end run 2165 to turn off beam to allow right septum to cool down
    17:31 start run2166 L and R septa are ramping up, not production
    18:06 start run 2168 dithering run - this does not seem to be working
    18:19 start prod run 2169
    18:23 septa control crash again - watch dog timeout, keep alive status red
    18:30 tried the septa reboot procedure that Heidi left but keep alive status and watchdog timeout still are red . It looks like the same problem as yesterday's swing shift. Heidi is coming in. We will need an access.
    20:20 finished reloading the PLC software - involves several steps which are probably better done by an expert. septa are ramping up
    20:30 made another entry into the hall to reset Q1 on Left
    20:47-22:08 bcm, carbon lumi, septa ramp up period
    22:29 start prod run 2173
    at evt #72500 the current in the Left septum started to drop. This was seen on the detectro in the LHRS. It looks like this is due to the helium level in the left septum. When the level drops below 80% the red interlock light goes on and the current to the magnet starts to drop.
    23:23 end run 2173
    23:25 start prod run 2174 , left septum is not at correct current