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| Operation Summary for January 20, 2012 - January 23, 2012 |
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NuMI reported receiving 8.15E18 protons on target for the period from 1/16/12 to 1/23/12. Friday January 20 The day shift began with Operations monitoring the Linac, Booster, and Main Injector (MI), and with the MiniBooNE and NuMI experiments taking beam. During the day shift, Operators completed tuning the H- Source extractor and magnet at 9:08 AM. Operators reported at 10:08 AM that technicians from the Magnet Facility accessed the Muon Rings to repair a magnet. Operators reported at 10:13 AM that they had to adjusted the H- Source’s gas off timer. Operations established beam to the Meson FTBF experiment T-1018 at 10:42 AM. Personnel at the Neutron Therapy Facility reported at 10:57 AM that they had treated their last patient for the day. During the evening shift, Operations disabled T-1018 beam at 10:01 PM. At 10:22 PM, the MI South Anode Power Supply tripped off due to an interlock fault; it reset. Saturday January 21 The midnight shift began with Operations sending beam to NuMI and MiniBooNE. During the midnight shift, at 3:31 AM, the NuMI beam permit tripped off on an RF incomplete indication, but no RF station had tripped off; it reset. At 6:59 AM, the MI South Anode Power Supply tripped off due to an interlock fault; it reset. During the day shift, Operators reported that a Linac quadrupole power supply’s (L:QPS107) output was wandering; Operators made adjustments. Operators loaded the Recycler with protons at 8:30 AM. Operations established beam to T-1018 at 10:12 AM. At 10:36 AM, the Booster West Anode Power Supply tripped off with no indication of a problem; it reset. At 3:06 PM, all of the Linac low energy RF stations and the quadrupoles tripped off; Linac personnel and Operators managed to get the Linac beam back on within 16 minutes. A Linac person believed that this was due to a timing issue. During the evening shift, L:QPS104 and 108 tripped off at 8:08 PM and then 108 tripped off again 90 minutes later; everything reset. Operations disabled T-1018 beam at 9:55 PM. Sunday January 22 The midnight shift began with Operations sending beam to NuMI and MiniBooNE. During the midnight shift, a Linac Klystron RF station (KRF1) tripped off at 12:41 AM; it reset. At 4:40 AM, L:QPS108, 113, and 115 tripped off; they all reset. At 5:29 AM, BRF11 tripped off; it reset. Operators reported at 7:23 AM that they had been tuning on the H- Source and the 750 KeV line all shift. At 7:31 AM, the NuMI beam permit tripped off on an MI incomplete RF gap indication; it reset. During the day shift, at 12:09 PM, MIRF12 tripped off; it took about 15 minutes for Operators to bring the station back online. At 2:06 PM, the NuMI beam permit tripped off on an MI incomplete RF gap indication; it reset. During the evening shift, at 4:18 PM, a Booster vacuum pump (B:IPRF22) tripped off and brought down BRF11 and 12; everything reset. At 4:39 PM, the MI South Anode Power Supply tripped off; it reset. At 6:37 PM B:IPRF15 tripped off and brought down BRF3 and 4; everything reset. Operations disabled the T-1018 beam at 9:44 PM. Monday January 23 The midnight shift began with Operations sending beam to NuMI and MiniBooNE. During the midnight shift, at 12:13 AM, the MI South Anode Power Supply tripped off; it reset. Operations reported that L:QPS107 had been fluctuating wildly over the past few days. At 3:57 AM, the NuMI beam permit tripped off on an MI incomplete RF gap indication; it reset. Operators completed a tune of the H- Source and 750 KeV line at 6:05 AM. L:QPS108 tripped off at 6:42 AM; it reset. At 6:42 AM, BRF5 tripped off; it reset. Operations Coordinator (OpsCo) The OpsCo agrees with the plans by the Booster and MI personnel to conduct studies. Fermilab reported that its current run would be extended to April 30 th. The Fermi Accelerator Complex will then begin a long shutdown for upgrades. |
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| last modified 01/23/2012 email Fermilab |
