Operation Summary for October 31, 2011 - November 2, 2011
Monday October 31
During the day shift, at 9 AM, operators reported a NuMI beam permit trip due to an indication of a spike in the gas flow through a beam detector; operators investigated and discovered the gas bottles were being changed. Operations established beam to the Meson FTBF experiment T-1015 at 10 AM. A MI person began a Recycler closed orbit study at 2:59 PM.
During the evening shift, the Recycler closed orbit study ended and operators rebooted the Recycler low level RF system and damper front end at 4:49 PM. Operations disabled beam to T-1015 at 10:09 PM.
Tuesday November 1
The midnight shift began with Operations monitoring beam to the NuMI and MiniBooNE experiments.
During the midnight shift, at 2:50 AM, the Linac Preaccelerator air temperature alarmed on a low temperature indication, but the dome temperature had not changed. Later, the Preaccelerator temperature jumped back to normal. At 7:41 AM, the Neutron Therapy Facility (NTF) began preparing to treat two patients later in the morning.
During the day shift, Operations established beam to T-1015 at 10:11 AM. Linac personnel accessed the H- Source dome (the backup source) at 11:23 AM. At 12:49 PM, a Linac person conducted an hour-long pulse study. Operations turned off beam to T-1015 at 3:12 PM for an access. Operations prepared MTA for access at 3:27 PM.
During the evening shift, Operations established beam to T-1015 at 4:30 PM. A Linac RF station (LRF4) tripped off for the first of three times in about 90 minutes; it reset. Operations disabled beam to T-1015 at 10 PM; this ended the experiment’s run for this year.
Wednesday November 2
The midnight shift began with Operations sending beam to the NuMI and MiniBooNE experiments.
During the midnight shift, operators conducted a Booster injection tune at 2:36 AM. At 3:58 AM, the NuMI beam permit tripped off for the first of two times in 17 minutes when a torroid (E:TOR101) went above its trip limit; it reset.
Operations Coordinator (OpsCo) Plans for Today
The plans for today include Booster, Recycler, and MI g minus 2 (g-2) studies.
Comments and Suggestions
|last modified 11/02/2011 email Fermilab|