1. Monday 5 July
Morning:
Continued with the Physics fill, 7b x 7b, 1e11/bunch
Stable beams from 2:30 am to 13:30 : 11 hours

2. Monday 5 July Observations:
2 intensity drops on beam 1, one just after the collapsing of the separation bumps and before correcting the orbit, the second one, just before starting IP1 optimisation; no RF noise observed at that time
Rest of the fill was rock stable
Modification to FESA class to monitor the frequency word received by the FGCs (subscription) - Philippe Baudrenghien - Frederic Dubouchet

3. Monday 5 July
Mirko Pojer

4. Monday 5 July
BPM temperature drift of c.o. crates: large orbit deviation (500 um) affecting ½ sectors

5. Monday 5 July
Performed wire scans before dumping, noticing losses at the level of 84-87% on both beams. B1H 4.3 B1V B2H 4.9 B2V 5.0
Was at 1.5 TeV : B1H 2.9 B1V B2H: 3.2 B2V : 3.8

6. Monday 5 July Afternoon: 15:00 – 16:00 : SPS transformer failure
15: :00 : S78 tripped (one noisy QPS board on main bend + pre-cycle of S78) - Threshold on B8L8 was increased to 600 uV – Access needed to fix prb.
18:00 - Refilling for physics with new injection scheme -Werner Herr- (10bx10b –, Single_10b_4_2_4 pattern, no more parasitic encounters)
- blown up SPS beam through miss-steered PS-SPS injection to 3.5 um. Tails which got caught in the bottom TL and LHC injection regions -> triggered the unmaskable BLM
- blown up SPS beam with screens -> ~ O.K.

7. Monday 5 to Tuesday 6 July Night :
10bx10b in the machine, about ~7.4e11 /beam,
- B1H B1V B2H 3.2 B2V 5.6
23:00 – 03:00 : Stable beams
No spurious beam losses observed. (except during chromaticity measurements: RF trims of 20 Hz not taken -stayed at 50 Hz. Continue with manual measurements
No more orbit reading, restarted the process OFSULHC_M of the machine cs-ccr-ofsu. The beam was dumped by the orbit SIS -> mask orbit SIS next time …

8. Monday 5 to Tuesday 6 July
Night :

9. Today
8:00 – 16:00 :
Transfer line and injection studies - Brennan Goddard + team
in parallel:
WS fixing: Bernd Dehning
BPMS gains and the High/low sensitivity switching – Rhodri Jones+ Lars Jensen+Kajetan Fuchsberger
16:00 : Overnight: Physics fill

10. Issues Access requests:
Access requested for B8.L8 QPS board replacement (1h)