MPPMain Ring Magnet Performance Panel Meeting
Wednesday 13 August 2008
Agenda:
1) General information2) ECR for improvement of dependability of 60 A software interlock.
M. Zerlauth3) Results of the simulations for the different spare quench heaters
reconfigurations in MB magnets. N. Schwerg4) Status of the 600 A circuits ramp rate and acceleration parameters.
W. Venturini Delsolaro5) Matters arising
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3 Stopping the beam
ETLT 31/8/08
Stefano Redaelli
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3
Main objectives: Injection
Energy matching Dispersion measurement Aperture scans Trajectory corrections Intensity threshold for BPM system BLM measurements …
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3
Tests with beam (single bunch) Pilot Beam for the most part:
single bunch of 5 - 10 x 109 protons Beam emittance: 1 µm Momentum spread: nominal Nominal tunes, nominal magnetic
machine
Total intensity injected: 1 x 1013 protons
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3 - First beam to IR3
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3 - First beam to IR3
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3 - First beam to IR3
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3
Trajectory measurements and corrections
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3
Aperture scans
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Injection test in Sector 2-3 - First BLM data
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Main issues relevant for MPP
First beam induced quench in RB
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Main issues relevant for MPP
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Main issues relevant for MPP
Induced quenches in 600A circuits due to FPA
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Main issues relevant for MPP
QH Power Supply in RBReplacement needed First intervention in the tunnel with RP team
Trip of RQT13
Discharge of QH in RQD
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Summary
The sector test has to be regarded as very successful
Essential step towards circulating beams and the LHC startup
MPP contribution MPP has significantly improved efficiency of
the injection test in sector 1-2 Contribution was appreciated by other
participating teams Very useful exercise for participating MPP
experts
MPP Meeting 13/o8/2008 A. Siemko/AT-MEI
Next step - Injection test in Sector 7-8