|
Date |
Summary |
Link to report from morning meeting |
| Monday 15 October |
- 03:15 Beam dump. QPS on Q6.L7B1.
- RB S67 EE trigger, pre-cycle.
- 05:00 PS POPS down.
- 06:00 Filling
- 08:00 Beam dumped at start of squeeze. Orbit FB reference change not
triggered correctly.
|
08:30 meeting
MD report |
| Sunday 14 October |
- 01:00 Ramp.
- 01:50 OFSU crash when switching off the FBs. emergency dump by SIS.
- 03:00 Injecting again.
- 05:00 Replay: OFSU crash when switching off the FBs. emergency dump
by SIS.
- Reboot of the OFSU server - just in case...
- 06:30 Next cycle.
- 07:50 Stable beams fill #3178, L ~7E33 cm-2s-1.
- 10:10 Beam dump, RF trip B2.
- 11:00 Injection.
- 12:00 Beam dumped when moving out injection protection. Re-cycling
collimators - all OK again.
- 12:30 Refilling asap, as PS needs intervention on 10 MHz cavity.
- 12:50 Beam dumped again when moving out injection protection.
- 13:00 Investigating problem of LVDT on TDI Pt2.
- 16:00 Filling again.
- 18:00 Beam dumped just before going into collision by ALICE. No
signs of losses on our side.
- Problems to reset ALICE BCM C.
- 20:45 Filling again.
- 23:00 Stable beams fill #3182, L ~6.8E33 cm-2s-1.
|
09:00 meeting |
| Saturday 13 October |
- 00:05 Access for beam dump finished
- 00:10 Test LBDS at 450 GeV and at 4 TeV: Ok
- 01:30 Back at injection. Start of MD on losses with ADT and MKQ.
- 06:30 Dump. End of MD block.
- 07:15 LHCb polarity changed to positive.
- 08:00 LHCb ramped up.
- 08:30 Problems with the feedback system.
- 09:12 RB.A67 tripped. It looks like an EE spurious trigger .
- 09:50 Pre-cycle with loop closed.
- 10:50 Problem with orbit feedback system.
- 11:50 Injecting probes.
- 12:30 Problem with SPS cavity.
- 15:30 Injection of 78b.
- 16:15 Beam dumped in ramp by COD interlock (settings seemed to point
to wrong hypercycle).
- 17:00 Injecting again.
- 18:20 Short stable beams fill 3169. Adjusting for LHCb pol+.
- 20:00 Injecting again. Need to re-steer TI8.
- 20:55 Vacuum spike on MKI8D. MKI8 faulty.
- 22:00 Running extended softstart on MKI8.
- 22:30 Injecting again.
|
09:00
meeting |
| Friday 12 October |
- 03:07 Start ramp
- 04:11 Declare stable beams
- 06:34 Beam dump - end of emittance preservation MD.
- 07:30 Injecting probes, start of optics and non-linearities MD.
- 09:44 Ramp started.
- 16:25 Beams dumped during optics measurements.
- 17:03 Waiting for PSB power supply.
- 18:00 PSB back, start of RF MD on one turn phase modulation.
- 18:05 BETS error beam dump B1. Continue B2 only.
- 20:45 Access point 6 for LBDS.
|
08:30
meeting |
| Thursday 11 October |
- 06:00 Start of longitudinal impedance at flat top MD.
- 11:06 Energy ramp.
- 11:49 Operator dump, end of 'RF MD'.
- 12:41 Injection for the 1 km beta* MD.
- 13:48 Energy ramp.
- 15:21 Beams lost at beta* = 500 m.
- 16:40 Injecting again.
- 18:45 At beta* = 1km.
- 21:15 Beam dump.
- 22:30 Inject for emittance preservation MD
- 22:55 Another RD2.L2 trip
- 23:15 Injecting again
|
08:30
meeting |
| Wednesday 10 October |
- 00:11 Injecting probes, start of Single Beam Stability MD.
- 01:37 Finish TI8 steering.
- 06:08 Operator dump.
- 08:11 Another ramp for MD Single Beam Instabilities.
- 09:24 Dump due to BLM losses, long running sum, when beam unstable.
- 10:40 Central frequency measurement at injection
- 11:40 Start of beta* = 40 cm MD.
- 12:14 Waiting for the SPS
- 13:19 Injecting.
- 16:15 At 50 cm beta*.
- 18:30 At 40 cm beta*.
- 20:45 Dump
- 22:00 Injection and TCDQ impedance MD starting
|
08:30
meeting |
| Tuesday 9 October |
- 02:00 Sector 12 trip, problem on RD34.LR7. Access for RCD.
- 08:30 Precycle.
- 09:10 Starting beta* levelling MD
- 13:45 End beta* levelling MD, use beam for stability studies.
- 14:30 Dump the beam for ramp down.
- 15:40 RD2.L2 tripped, apparently on a free wheel diode fault.
- 16:40 Injecting for collimation and impedance MD.
- 20:40 Beam dumped, problem with a cryogenic valve, end of
collimation MD.
- 23:04 Cycling
|
08:30 meeting |
| Monday 8 October |
|
08:30 meeting |