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

6–7 Oct 2016
CERN
Europe/Zurich timezone

Contribution List

41 / 41
43. Introduction
Oliver Bruning (CERN)
06/10/2016, 08:45
1. Overview and introduction including an outline of the existing installation options, optics conditions, infrastructure requirements (cry, power), Tools for halo measurement and timeline (planning need for the technical design etc.)
Stefano Redaelli (CERN)
06/10/2016, 09:00
2. Discussion
06/10/2016, 09:30
3. Loss and lifetime observations during nominal operation and their extrapolation to HL-LHC parameters.
Belen Maria Salvachua Ferrando (CERN)
06/10/2016, 09:45
4. Discussion
06/10/2016, 10:15
38. What did we learn about HALO population during LRBB studies and MDs?
Yannis Papaphilippou (CERN)
06/10/2016, 10:30
8. Discussion
06/10/2016, 10:50
7. What did we learn about HALO population during MDs and regular operation?
Gianluca Valentino (University of Malta (MT))
06/10/2016, 11:30
39. Discussion
06/10/2016, 11:50
9. Observations and measurements on the impact of earthquakes and cultural noise on the LHC operation and their extrapolation to HL-LHC parameters.
Michaela Schaumann (CERN)
06/10/2016, 12:00
10. Discussion
06/10/2016, 12:30
17. Operational experience from HERA and their extrapolation to the HL-LHC
Mike Seidel (PSI)
06/10/2016, 14:15
14. Discussion
06/10/2016, 14:35
15. Operational experience of RHIC electron lenses and their effect on collimation and halo populations
Wolfram Fischer (BNL)
06/10/2016, 14:45
16. Discussion
06/10/2016, 15:05
13. Operational experience from Tevatron and relevance for HL-LHC
Alexander Valishev (Fermilab), Miriam Fitterer
06/10/2016, 15:15
18. Discussion
06/10/2016, 15:50
19. Expectations (extrapolated from LHC operation) for the beam lifetime and halo population based on scaling from the LHC observations for radiation damping and IBS excitation.
Fanouria Antoniou (CERN)
06/10/2016, 16:35
20. Discussion
06/10/2016, 16:55
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
42. Closeout
Rudiger Schmidt (CERN)
07/10/2016, 16:30
41. Discussion
40. Hollow e-lens performance simulations for HL-LHC
Miriam Fitterer
5. Loss and lifetime observations during the ’Static’ Cycle (stable beam) and their extrapolation to HL-LHC parameters.
23. Machine protection requirements for HL-LHC and failure modes
11. Potential scenarios in the HL-LHC machine that can lead to very fast orbit changes (e.g. missing be a,-beam kicks, damper failure scenarios, Crab cavity failure scenarios etc)
6. Q & A
12. Q & A
22. Q & A
26. Q & A
21. RF overview of the Crab Cavity system for HL-LHC with presentation on potential failure modes and summary of the KEK operation experience.
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