The integrated luminosity for last week was 7.4 pb-1.
Operations terminated store 2953 at 12:20 PM.
Pbar resumed stacking at 2:05 PM.
Operations put the TeV through a dry squeeze at 2:19 PM.
Operations put the TeV into shot setup at 2:52 PM and established store 2956 at 4:41 PM. Its initial luminosity was 4.1E31. Pbar resumed stacking.
Thursday August 28
At 12:52 AM, the TeV suffered a sector B0 quench on the first ramp. Operations thought that maybe the cryo system hadn't stabilized.
A Pbar expert began a study period at 1:40 AM.
TeV expert began tuning the machine for studies at 3:20 AM.
Pbar studies finished at 6:38 AM.
At 7:00 AM, Operations began turning everything off.
By 8 AM, nearly all areas were ready for access.
The Linac and Booster accessed ended and Operations was turning these machines back on by 11:53 AM. Operations had beam to Booster by 12:38 PM.
Booster experts began a study period at 1:10 PM.
By 6:47 PM, Operations began the Main Injector (MI) turn-on, but problems at 7:17 PM halted the this. An expert had to come in and replaced equipment.
Operations established beam to MiniBooNE at 8 PM.
Pbar began stacking at 9:38 PM, but the beam looked bad.
MI work finished and normal stacking resumed at 10:35 PM.
MiniBooNE was suffering from low beam rates at 11:11 PM. Operations called in experts to investigate.
Friday August 29
At 12:51 AM, a MininBooNE beam-monitoring device (TOR860) failed. Operations turned off their beam and contacted experts. Experts switched the device to a new channel at 1:19 AM.
Operations put the TeV through its first ramp at 2:44 AM.
Operations had trouble turning on the Tevatron Electron Lens at 3:39 AM. An expert came in and had it operating by 3:58 AM.
TeV expert began tuning the TeV for studies at 4 AM.
Comments and Suggestions
|last modified 8/29/2003 email Fermilab|