|
Date
|
Summary
|
Link to report from morning meeting
|
|
Monday 25 June
|
|
8:30 meeting
MD summary
technical stop planning
|
|
Sunday 24 June
|
-
0:00 - 6:30 MD on collimator nominal settings (7
TeV settings in mm) followed by measuerement of collimator impedance.
-
8:00 MD Beam Instrumentation (BSRT, BGI, wire scan, BPM
nonlinearities)
- Evening: calibration of emittances through the cycle
|
MD summary |
|
Saturday 23 June
|
- 06:00 to 15:00: high beta* - 90/500 m revisited - 1000 m beta* reached for the first time
- Evening spent with single nominal beam at end of squeeze exploring octupole/chromaticity space
|
8:30 MD summary |
|
Friday 22 June
|
- 1:53 dumped by spark on
UA87 injection kickers (ecloud solenoids were off)
- 1:57 ventilation door
opened in UL26
- 3:00 access finished
- 4:30 MD on Scraping,
diffusion and re-population
- 8:00 MD on Fast Losses
using ADT
- 14:00 Injection from Q20 optics in SPS - 3e11 per bunch injected into around 2 microns - looks good at first sight too be revisited.
- Evening - injection studies
- Overnight - RF cavity phase modulation for 25 ns - interesting results
|
8:30 meeting
MD_summary
|
|
Thursday 21 June
|
- 8:00 MD on high beta*
- 16:30 short access for
AC dipole, diamond BLMs and installation of HT monitor temperature probes;
followed by pre-cycle
- 19:00 MD on MKI UFO
studies
|
MD_summary |
|
Wednesday 20 June
|
- 1:00
ramp for chroma measurements with pilots
-
4:50 start MD on longitudinal beam dynamics
-
12:00 MD on beta* leveling
-
22:00 MD on long-range beam-beam with high bunch intensity
|
8:30 meeting
MD_summary |
|
Tuesday
19 June
|
- 01:25 beta* 1 & 5 = 500 m Orbit correction, optics measurements
- 03:30 Ramp 3 probes again - loss in un-squeeze to...
- 04:15 S12+S23 trip 400 V electrical distributor IP2
- till 9:00 recovery from power trip
- access for TI services and vacuum valve controls
- 11:35 finished the repair of crowbar RF module 2 beam
2
- 10:30 – 12:30 no beam from PS: 10 MHz cavity
intervention
- 12:40 – 18:00 MD on large Piwinski angle
- 19:30 start MD on octupole instability threshold
|
8:30 meeting |
|
Monday
18 June
|
-
00:34 Beam lost RF line 2B2.
Lumi 66 pb-1
-
Kickers cooling down. ATLAS water
leak, access.
-
05:15 Injecting again. MKI B2 vacuum interlock, looks like e-cloud
again.
-
10:29 Stable beams #2739. Initial lumi 6.3 cm-2s-1.
-
13:00 Programmed dump. Integrated
lumi 50
pb-1
-
Access (LBDS, Collimator, BBQ, head-tail monitor, Atlas)
- RF module(M2B2) U/S - access required
-
17:30 test of TETRA
- 20:15 Three pilots in for beta* = 90 m re-commissioning
- 20:25 Start ramp (Without RF M2B2 - to be fixed tomorrow)
- 21:00 Start unsqueeze
- 22:15 beta* = 90 m
|
8:30
meeting
|