Thermal losses in couplers and ports of a SPS Double-Quarter Wave Crab Cavity

The Double-Quarter Wave Crab Cavity for beam tests at SPS will be equipped with a Fundamental Power Coupler (FPC), three HOM filters and one pickup. FPC and HOM couplers are located in high magnetic field region and have a hook shape. The FPC will be made in copper while HOM and pickup are in niobiu...

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Detalles Bibliográficos
Autores principales: Verdú-Andrés, Silvia, Belomestnykh, Sergey, Burt, Graeme, Calaga, Rama, Capatina, Ofelia, Carra, Federico, Jones, Thomas, Li, Zenghai, Wu, Qiong, Xiao, Binping, Zanoni, Carlo
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-SRF2015-THPB052
http://cds.cern.ch/record/2288279
Descripción
Sumario:The Double-Quarter Wave Crab Cavity for beam tests at SPS will be equipped with a Fundamental Power Coupler (FPC), three HOM filters and one pickup. FPC and HOM couplers are located in high magnetic field region and have a hook shape. The FPC will be made in copper while HOM and pickup are in niobium. This paper explains the material choice for the FPC, HOM and pickup couplers given the calculated power dissipation for fundamental and selected high order modes. It also describes the envisaged cooling system and corresponding thermal distribution for each coupler.

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