International Review of the Crab Cavity system design and production plan for the HL-LHC

Session

SPS Experience Contd.

20 Jun 2019, 08:30

774/R-013 (CERN)

45. Vacuum layout & experience from SPS

Chiara Pasquino (CERN)

20/06/2019, 08:30

Vacuum layout in SPS, installation and lessons learned
Aspects related to carbon coating of the bypass chambers
Experience with beam and insulation vacuum
Outlook for operation in 2021 and beyond

46. Cryogenics Experience from SPS

Krzysztof Brodzinski (CERN)

20/06/2019, 08:50

Challenges for SPS installation and commissioning and related schedule constraints
Experience and learning curve for SPS module, results and outlook for 2021 operations
Lessons learned and relevance to HL-LHC

78. Freq Tuning System & Lessons learned

Kurt Artoos (CERN)

20/06/2019, 09:10

Frequency tuning requirements, concept and results and lessons learned from SPS.
Relevance to HL-LHC and improvements adopted
Open issues for cavity tuning to be addressed

48. HOM Damping & SPS Measurements

James Alexander Mitchell (Lancaster University (GB)), Zenghai Li (SLAC)

20/06/2019, 09:30

HOM damping requirements and overview of the damping schemes
Measurements on the bare and dressed SPS cavities including distribution of the HOM power between couplers
Measurements with beam and comparison to simulations
Improvements for DQW for HL-LHC

47. SPS experiments with beam

Lee Robert Carver (University of Liverpool (GB))

First crabbing with proton beam, energy ramp, intensity ramp-up, emittance growth, impedance measurements etc..
Challenges during beam commissioning and mitigations
Outlook for 2021