1st SPL Collaboration Meeting

Session

Working Group 2 - Session 1 (with WG 4)

11 Dec 2008, 14:00

AT Auditorium (CERN)

4. On the optimum choice of the geometric beta of the sc cavities

Frank Gerigk

11/12/2008, 14:00

Make recommendation on geometrical beta based on beam dynamics issues, in view of the impact on power dissipation, max. gradient, and required equipment (high pressure water rinsing, electropolishing, ...)

6. Discussion on cavity beta and other design issues

11/12/2008, 14:15

Other design issues: Optimize cavity geometry w.r.t. peak fields, multipactor, robustness against Lorentz-force detuning, tunability, HOM spectra, cross-talk between cavities (from HOM or electron propagation, ...) Identify potential contributers and deadlines

47. Do we need HOM dampers on SC cavities in p linacs?

Joachim Tuckmantel (CERN)

11/12/2008, 14:30

13. HOM studies for TESLA

Hans-Walter Glock

11/12/2008, 14:50

5. HOM damping on sc cavities

Joachim Tuckmantel

11/12/2008, 15:10

14. Discussion HOM coupler

11/12/2008, 15:30

Possible issues: - Acquire results on HOM impedances, beam instability studies, and interaction between cavities via HOM propagation - Define strategy on HOM coupler design, prototyping and testing - Design HOM coupler (antenna vs. beam tube absorber), and cooling layout - Perform multipactor studies - Identify manufacture capacities - Identify required equipment for HOM coupler tests...