4–7 Feb 2020
CERN
Europe/Zurich timezone

HOM couplers for crab cavities and challenges (10'+8')

4 Feb 2020, 16:18
18m
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

162
Show room on map

Speaker

James Alexander Mitchell (CERN)

Description

Abstract:
Two types of crab cavities will be installed into the LHC as part of the HL-LHC project. To mitigate the problems of large beam-induced heat-loads and instabilities, the higher order modes in both cavities are damped by coaxial couplers. This presentation will detail the HOM damping mechanisms chosen, specifically looking into broad-band damping and limitations with dynamic heat loads. Finally, design constraints arising from manufacture and transport are presented with key points for discussion.

Provocative topics:
High power SC HOM couplers, gasket heat loads, transport of HOM couplers, manufacture of HOM couplers.

Presentation materials