Log entry time 16:07:19 on October 16, 2010

Entry number 335182

Summary for October 16, Day Shift

People in counting house:

• SL: Juliette Mammei
• TO: Pengjia Zhu
• 3rd: Chunhua Chen
• Others: Charles Hyde

Main Events/Issues:

• 08:00 NMR having issues with lock at 2.607 GeV; no beam
• 08:23 MCC wants to test sending 5 uA
• 08:50 RF zone in south linac down; ETA 15 minutes
• 09:03 Brad gets NMR to lock w/o regulation from home
• 11:00 MCC starts sending tune beam; tests 50uA on empty target
• 11:30 Resume run plan
• 15:50 Move LHRS and set new momentum

Summary:

• NMR dipole lock caused much consternation early on but Brad fixed it (see halog 335133).
• Issues with an RF zone in the south linac delayed beam delivery (see elog 1547507) but around 11:15 MCC was able to send us 3uA beam.
• After that it was relatively quiet with fairly good beam.

Run Summary:

• 7415 Spot++ on BeO at 5uA
• 7416 LH2, 3 uA, no raster, LHRS @ 34.76 deg, p0 = 2.607, ps1=ps2=50, ps3=1, 1st 30min.run, several trips
• 7417 LH2, 3 uA, no raster, LHRS @ 34.76 deg, p0 = 2.607, ps1=ps2=50, ps3=1, 2nd 30min.run
• 7418 LH2, 3 uA, no raster, LHRS @ 34.76 deg, p0 = 2.607, 1st elastic calibration run with DVCSTopBot, several beam trips
• 7419 LH2, 3 uA, no raster, LHRS @ 34.76 deg, p0 = 2.607, 2nd elastic calibration run with DVCSTopBot
• 7420 LH2, 3 uA, no raster, LHRS @ 34.76 deg, p0 = 2.607, 3rd elastic calibration run with DVCSTopBot