Review of the needs for a hollow e-lens for the HL-LHC

Session

Session on HL-LHC system specifics

6 Oct 2016, 17:05

30/7-018 - Kjell Johnsen Auditorium (CERN)

27. RF overview of the Crab Cavity system for HL-LHC with presentation on potential failure modes and summary of the KEK operation experience.

Rama Calaga (CERN)

06/10/2016, 17:05

28. Discussion

06/10/2016, 17:35

29. Potential failure scenarios in the HL-LHC machine that can lead to very fast orbit changes (e.g. missing beam-beam kicks, damper failure scenarios, Crab cavity failure scenarios etc) and the resulting machine protection requirements for HL-LHC operation (with input from collimation team).

Daniel Wollmann (CERN)

06/10/2016, 17:50

30. Discussion

06/10/2016, 18:20

31. Measured effects of depleted halo population with hollow e-lens and relevance for HL-LHC

Giulio Stancari (Fermi National Accelerator Laboratory)

07/10/2016, 09:00

32. Discussion

07/10/2016, 09:20

35. Alternative methods for halo depletion (damper and tune modulation [ and wire]), long range beam-beam and comparison of their performance / reliability to that of a hollow electron lens.

Roderik Bruce (CERN)

07/10/2016, 09:30

34. Discussion

07/10/2016, 10:00

33. Potential performance reach for the HL-LHC in case of a depleted beam halo

Gianluigi Arduini (CERN)

07/10/2016, 10:15

36. Discussion

07/10/2016, 10:45

37. Reserve session for additional presentation requests from Day 1 of the Review

07/10/2016, 11:30