LHC-CC10, 4th LHC Crab Cavity Workshop

Session

Cryomodule & Instrumentation

15 Dec 2010, 16:00

6/2-024 - BE Auditorium Meyrin (CERN)

16. Slim elliptical cavity at 800 MHz for local crab crossing

Luca Ficcadenti (INFN)

15/12/2010, 16:00

A slim highly eccentric elliptical cavity with vertical deflection at 800 MHz, compatible to beam line distances everywhere in the LHC ring, was designed; it is a good fall-back solution in case of problems with new compact 400 MHz designs. RF characteristics of the deflecting mode, HOM spectra and damping, tuning and multipacting are presented.

30. Coupler (FPC & HOM) concepts for compact cavities

Wolfgang Weingarten (CERN)

15/12/2010, 16:20

Review the current design aspects of the fundamental power coupler and HOM couplers for the compact cavity designs. Feasibility and robustness of such couplers for the LHC crab cavity from the perspective of HOM damping, fabrication, assembly and operation is considered. These concepts are compared to the conventional coupling and damping systems for cavity-coupler concepts.

31. Thermal & mechnical analysis for compact cavities

Vittorio Parma (CERN)

15/12/2010, 16:40

Thermal and mechanical consideration for the compact cavities under considered for the LHC as compared to the conventional cavities in accelerators. General mechanical and thermal considerations for cryomodule hosting the compact cavities, including modelling tools, stress analysis, tuning, alignment, impact of the accelerator environment, issues and input for LHC cavity designs

15. Tuner concepts for compact cavities

Dr Alireza Nassiri (Argonne National Laboratory - DOE)

15/12/2010, 17:00

Review of the state of the art tuning systems for SRF cavities in accelerators and potential robust concepts for compact cavity designs to achieve both slow and fast tuning range and tolerances. Design aspects, cryomodule integration and operational considerations including potential issues for the tuning concepts considered for the compact cavities.