Choose timezone
Your profile timezone:
OMChristmas meeting 2019
→
Europe/Zurich
6/2-008 (CERN)
############################################
Rogelio,
news on HL ramp-up, new MD ideas with TOTEM people and status of HL strategy report
###############################################################
Jacqueline, SKEKB
Single kick very easy to use. AC dipole via PLL much more complex.
PLL BPM trigger has different synch than free kick. To be fixed with our codes.
BPM calibration could be affected by actual beam position or intensity and bunch length.
PLL amplitude limitation due to machine protection.
Beta-beating measured for both planes. Below 10% but error bar ~5%.
Tune jumps of 1e-4 within one meas. and 1e-3 between diff acquisitions.
Limitations of lifetime for off-momentum beams.
Look into lifetime issues.
PLL frequency stability?
#################################################################
Joschua, LHC DA MD
Natural tune not visible some times. Excellent forced DA measurement!
Analyse all natural tunes available.
###################################################################
Lukas, Virgin machine 40cm beam 1
Beam 2 missed b2 dipole errors -> to be done
Beam 1 results in good agreement. Issues models and bumps.
Phase bump seen actually corresponds to Riccardo's new bump:
https://indico.cern.ch/event/516795/contributions/1196630/attachments/1253664/1849714/SLIDESBeamer.pdf
The analysis was done with 'wrong' model to actually show the bump was there.
Injection to be done
########################################################
Mael, CCC test day
Error definition files in visible place.
Refresh status and plans for EOS in CCC?
tfs files with empty fields and 0s.
0 breaks the GUI display -> fix
Checks to not send empty files to writter.
Avoid error in sigma calculation with single file.
Panel loading error. It should not be hard.
Simulation mode failed in multiturn -> Talk to Elena
#############################################
There are minutes attached to this event.
Show them.