Operations terminated store 2725 at 8:34 AM.
Operations put the TeV into shot setup at 9:15 AM.
At 11:30 AM, Operations established store 2727 with an initial luminosity of 36.225E30. Pbar resumed stacking.
Operations noticed that Booster seemed to operate better with an RF station (BRF9) turned off. So it was turned off at 3:23 PM. (It was turned back on later.)
A Linac expert conducted fifteen minutes of beam tuning at 5:18 PM.
Saturday June 28
MI studies ended at 1:37 AM.
D0 came out of access at 8:08 AM.
Operation put the TeV into shot setup at 9:45 AM. At 12:16 PM, Operations established store 2728 with an initial luminosity of 35.77E30. Pbar resumed stacking.
The TeV store aborted at 7:20 PM due to a RF power supply problem. Coincidentally, a loud thunderclap occurred as the abort fired.
At 7:31 PM, operators made the TeV ready for a Collider Detector Facility (CDF) and D0 access. D0 began their access at 8:18 PM and CDF began theirs at 8:47 PM.
Booster suffered a vacuum burst at 10:05 PM.
The access ended and a TeV expert began a chromaticity study period at 10:47 PM
Sunday June 29
The TeV studies ended at 1:40 AM.
Operations put the TeV into shot setup at 2 AM. At 4 AM, Operations established store 2734 with an initial luminosity of 30.75E30. Pbar resumed stacking.
A Booster power supply (ORBMP) tripped of at 1:17 PM and then repeatedly tripped off due to a LCW flow problem. A Booster expert came in and adjusted a flow switch at 3 PM. This switch will have to be replaced at some later date.
A Booster kicker (MKS08) stopped putting out voltage at 9:05 PM. Operations tuned up the backup kicker (MKS04), which worked for stacking and MiniBooNE, but not for other events. Operations called in a Booster expert.
Operations terminated store 2734 at 10:20 PM.
A MI RF station (MIRF12) tripped off at 11:26 PM.
Monday June 30
The Booster expert finished his work at 12:23 AM. Operations reestablished MiniBooNE beam at 1:02 AM.
Operations established store 2736 at 2:19 AM. Its initial luminosity was 32.84E30. Pbar resumed stacking.
At 4:37 AM, a Linac RF station (LRF5) tripped. Then at 4:46 AM, a Booster RF station (BRF9) tripped off repeatedly followed by another LRF5 trip. Everything reset okay.
Comments and Suggestions
|last modified 6/30/2003 email Fermilab|