|
Date
|
Summary
|
Link to report from morning meeting
|
|
Monday 26th March |
- 00:00 ADT fast losses test
- 1:00 ADT set-up
- 2:00 BGI test B1 4 nominal bunches
- 3:30 - 8:00 b* measurement with K-modulation at 0.6m
- 8:00 lost cryo
|
8:30 meeting |
|
Sunday 25th March |
- 00:00 Pre-cycle or ramp (no beam) - decay measurement at 450
GeV
- 6:00 longitudinal loss maps 450 GeV
- 9:00 Sort out orbit (feedback) on the ramp
- 15:00 Injection protection set-up
|
9:00 meeting |
|
Saturday 24th March |
- 01:16 Ramp of 1 pilot with flattened functions for Q and Q’
corrections
- 03:00 MP tests and ramp with collimator functions
- 04:50 Ramp with collimator functions
- 06:30 Access interlock (from door between UJ83 and LHCb
cavern US85)
- 06:30 Access for fixing the access system
- 12:30 Machine closed
- 12:30 Bridge A cooling fault on RB.A67, piquet called
- 17:00 finished pre-cycle, loss maps 450 GeV and sync. dump
test
- 20:00 First ramp-up with one nominal bunch / beam and tight
collimator setting; collimator set-up at flat top
|
8:30 meeting |
|
Friday 23rd March |
- 08:00 Access
- 11:20 Machine closed, cycling the magnets
- 12:45 Probe injected, machine protection tests after
modifications during access
- 14:00 Refill blown-up probes for aperture measurements
- 14:40 Ramp - squeeze - aperture measurements at 0.6 m
- 23:39 Dump after aperture studies
|
8:30 meeting |
|
Thursday 22nd March |
- 00:20 - 2:40 on longer squeeze function, orbit and chroma
correction at 4 TeV
- 2:40 – 5:30 second cycle with long squeeze
- 5:46 – 7:00 TI8 stability check
- 08:00 – 15:00 Check of b* at 0.7 m and 0.6 m
- 15:00 - 16:00 splashes for ATLAS
- 16:00 - 17:00 energy feedback tests on orbit feedback (left
operational)
- 17:39 Lost ramp for crossing checks at 3.8 TeV
- 20:58 Dump of beam after squeeze executed for the first time
with nominal crossing and separation to the end
- 21:45 TCDQ set-up
|
8:30 meeting |
|
Wednesday 21th March |
- 07:45 beam lost during K modulation
- 08:00 - 08:15 test longer squeeze function
- 09:00 setting up collimator at 450 GeV
- 24:00 Collimation set-up at injection
finished
|
8:30
meeting |
|
Tuesday 20th March |
- 00:00 Beam Gas Ionisation (BGI) Monitor
set-up
- 02:00 BLM Machine Protection tests
- 06:20 start precycling the machine after the
trip of RQT11.R5B2, PC fault
- 07:40 Beams in again for K-modulation test
- 09:00 RF phase set-up & blow-up in ramp
- 13:45 Beam at 4 TeV - keep beam because of
another SPS EDF intervention: ramp and squeeze
- 15:30 dump beams and test new stretched
squeeze functions
- 16:00 - 23:00 injection studies
- 23:00 - 7:45 optics during squeeze, beta
beating correction
|
8:30 meeting |
|
Monday 19th March
|
- 02:00 Ramp and
squeeze attempt. Lost due to bad reading of a temperature sensor in cell
23.R7.
- 06:30 Another ramp
and squeeze: lost on third integer in the squeeze beyond 2 m.
- 08:30 Start another
ramp
- 13:40 Lost beam in
squeeze between 0.8 m and 0.7 m, V-tune B2 across resonance.
- 14:30 Waiting for EDF
intervention at the SPS.
- 15:15 SPS back -
start aperture checks at 450 GeV.
|
8:30 meeting
|