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TB:Post-Mortem report on machines start up from coordinators
Description
BI-TB
L4/PSB
Few issues at the startup but very good follow up from BI and outside the group.
DAQ for linac 4 could be made lighter (less data sent out from FESA?): discussion with Piotr to start <= Michele and Ana
Few issues, minor, with temp of the wire scanners
BSM is a very important tool for L4 and with the retirement of JT succession needs to be followed up.
TB to be organised on the BCT amplifier modifications
ISOLDE
After power cuts the scanners gets pulled in and need expert intervention.
Replacement of old scanners should be planned for LS3. <= Miguel to organise with ML
Bellows of the faraday cups fails at 25% of their rated cycles. We cannot complain to the manufacturer as they quote 10k and 1y and we are already at the 5th year. This is being followed up also with the new TTE in ML.
No real issues linked to startup preparation but quite few operational ones, all minor.
PS
Very smooth start
TOF beam with issues with the SEM grids. Ana was away but colleagues could intervene and OP had in few hours what they needed to continue. The issue was due to wrong configurations. The setting was unfortunately persistent and reboot did not work: now this will be changed. In addition an alarm can be set when the instrument is in non-operational mode. <= Ana
Issues with the scanners were noticed in 2024 and linked to excessive friction. Due to the fact that we had already 2 to intervene on we could not do anything in YETS 2024/2025
Overall smooth restart
AD/ELENA
Smooth restart with few minor issues quickly solved by experts. OP grateful.
Recombination monitor developed by Gerard is moving to Stephane and will be a standard BTV. <= a BIFT on transverse profiles in ELENA (Federico)
SPS
Once more a very smooth restart
The BGI corrector magnet was causing a bump, they moved the magnet and should now be back in place. This was a saturation effect and is now solved.
BPM long capture not fully solved yet
BPCN and BPCE gains reviewed and improved
HIRADMAT
Main issue was saturation of the BPM, which was solved by the BPM team (quick installation of attenuators in the tunnel)
Check with Eva what was modified <= Andrea
Ask at BIFT the spec for the trigger <= Federico
LHC
Very smooth restart for the LHC too
Few issues during the run but BI availability is very high >98%
Stephen pointed out we could be more proactive in checking diamond as OP do not really checks. Maybe before the end of YETS and TS. Tom has a yaml filtering in diamond the fees of
L3/LEIR
LEIR EC and IPM to be added to ICS <= Gunn
L3 informed that they should inform not only the coordinator but also the experts.
NA
Inaki to mention to OP that he is the coordinator and not Ana
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