|
Date |
Summary |
Link to report from morning meeting |
| Mon 10 Dec |
- 25 ns fills for scrubbing at 450 GeV
- 08:22 Access for ATLAS, QPS and TDI point 8.
|
08:30
meeting
Scrubbing
report |
| Sun 9 Dec |
- 03:00 Dump with 2740b. Lost again the CM on MS in Pt8.
- Precycle.
- 04:50 Checking emittance blowup with 72b trains.
- 05:45 New fill with 288b / injection.
- 25 ns fills at 450 GeV
|
09:00 meeting |
| Sat 8 Dec |
- 01:31 Injected up to 1164 bunches lost cryo conditions in the
matching section R8.
- 04:30 Re-injecting.
- 07:40 Dump with 2028/2316 bunches, likely due to TDI vacuum in point
point 8.
- Cryo lost due to jump in heat load to the system.
- 09:20 Start pre-cycle.
- 10:30 Filling with 288b/injection. Got to 1450b per beam.
- 12:35 RF trip B2, (fake) spike on vacuum gauge.
- 13:40 Filling again with 288b/injection.
- 19:50 Dump with 2450b per beam, scrubbing not efficient anymore
(heat load in S56).
- 20:10 New fill with 288b/injection.
|
09:00 meeting |
| Fri 7 Dec |
- 02:30 Beam dumped - TDI to hot (vacuum at 1E-7).
- 03:30 Scrubbing with 288b / train.
- 07:30 Machine full, but beam dumped shortly afterwards by BPM
interlock IR6 (due to low intensity bunches).Extended softstart for the
MKIs.
- 09:15 12 bunches in agan for both beams.
- 1256 Machine full: 2 x 2748 bunches.
- 14:06 Beams dumped.Extended softstart for the MKIs.
- 15:07 12 bunches in again.
- 17:53 2460-2748 bunches. Beam dump due to ALICE trigger (UFO like
event on the left side of ALICE)
- 18:00 Cryo lost in sector 81.
|
08:30
meeting |
| Thu 6 Dec |
- 01:31 Beam dumped due to trip of RB.A81. Integrated Lumi 55 pb-1 in
2h31m
- Access for QPS, problems with MAD of UJ87 and UJ14.
- 09:57 Start pre-cycle.
- 11:30 ADT setup starting.
- 18:00 AST setup finished.
- 20:00 Up to 228b injected OK (but unstable in the LHC).
- 20:30 Scrubbing with 72b / train.
|
08:30
meeting |
| Wed 5 Dec |
- 00:30 Preparing for access in Pt4. Special procedure.
- 05:00 Machine closed.
- 06:59 Stable beams fill #3375, L ~ 6.8e33
cm-2s-1.
- 10:40 Beam dump, trip of RD2.R5. Integrated L 72 pb-1 in
3h39m.
- Access for TED TI2 repair.
- 17:00 TED back in access chain. Pre-cycling.
- B1V tune trimmed flat in squeeze. B2H+V trimmed -5e-3 after
700 s in the squeeze.
- 19:00 Injecting.
- 20:30 Beam dumped on flat top, RF trip M1B2.
- 22:59 Stable beams fill #3378, L = 7.1e33 cm-2s-1
|
08:30
meeting |
| Tue 4 Dec |
- 1:30 TDI alignment finished. No changes.
- Filling for physics.
- 05:30 Stable beams fill #3370, L ~ 6.9e33
cm-2s-1.
- 09:30 Beam dump from SIS. Communication problem with FGC
due to IT vmware. Integrated L 77 pb-1.
- 10:57 Injecting physics beam for fill with high
brightness beam from the injectors.
- 12:13 Start ramp, 72
bunches.
- 13:00 Stable beams fill #3372, L ~3.4e32 cm-2s-1.
High brightness test fill.
- 14:15 Operator dump, end of high brightness fill.
- 16:05 Injecting for next fill for phsyics.
- 18:40 Stable beams fill #3374, L ~7e33 cm-2s-1.
- 22:25 Beam dump, RF trip B2. Integrated l ~70 pb-1.
|
08:30
meeting |
| Mon 3 Dec |
- 11:03 Operator Dump Fill #3363. 167 pb-1 in 11h36m
- Access for ATLAS. Problem TDI point 2.
- 14:36 Pre-cycle started.
- 19:00 Injection for TDI alignment.
- 22:00 Electrical disturbance on 400 kV. LHCb, ALICE, RF and 5
sectors off.
- 23:30 Resuming TDI alignment.
|
08:30
meeting
MD
Summary |