September 10
Machine preparation for Wednesday
Final tests finished
Check SPS OK to TEDs overnight.
Pull it all together from 06h.
· Injectors.
· LHC interlocks.
· LHC machine.
· LHC settings.
· Experiments and associated interlocks.
Status 06.30
Lost the cryo in 78 due to turbine stop at 04.00. Recovering.
Also search down in point 2. Patrol needed.
Patrol done by 08h. Getting SPS ready.
08.30 Beam to TEDS both lines. Interleaved injection.
09.00 Switch to beam 1 only. Kickers executing soft start.
09.30 Beam to TDI. Kickers on.
09.40 TDI out. Beam to collimators point 3.
09.45 Collimators IP3 out. Beam to left of point 5.
09.55 Collimators point 5 out, beam ~to point 6 but not to the extraction line.
10.00 Beam to dump block (steered with DC bump). Half way round ring1!
10.08 Beam to collimators in point 7.
10.12 Beam to point 8 collimators.
10.30 Beam round > 1 turn image on screen showing beam on first and second turns trajectory
With a bit of correction - beam makes 3 turns (screen image)
High spot of the day is to have made Google
Images from Atlas from beam on the collimator in front of them Atlas 1 Atlas 2 (& thanks for the champagne)
and Alice's pixel dectector
Non-serious cryogenics problem delays injection of beam 2 until 13:30
Switch to beam 2 only.
13.30 onto the TDI
13.40 TDI out, beam to point 3.
Cryogenic instability needs a little more time
13.55 Beam to 6, steered into start of dump line
14.05 Beam to left of 6. Lost. Investigating.
14.25 Problem understood. Beam to right of 5. 20 shots for CMS.
14.40 Beam round to 3 (after one correction in 4). Few corrections needed.
14.45 Beam to ALICE.
14.50 Beam to ATLAS. Few shots for them.
Few minutes no beam. Reboot for screen server.
15.00 Beam > 1 turn
We take a breather - back soon for some beam based measurements.
16.00 Beam 2 to collimators ATLAS
Dispersion data
Kick response data
In parallel BI looking at BPM acquisition for >1 turn
18.00 Inject and dump commissioning (all collimators out)
Inject and dump up to 9 turns OK.
20.00 BPM acquisition for multiple turns sorted out
Trimming Qh, Qv, Q'
21.30 Beam 2 makes at least 300 turns!
Fast BCT data and tune measurements - Qh .31 Qv .23
23.00 Start systematic polarity checks of orbit correctors
03.00 RB.34 trip, followed by problems with a number of circuits in 56, D1.R8 and QT11.R2
08.00 Access in 4 points for above problems