Thermal study of HOM couplers for superconducting RF cavities

Author

Fouaidy, M. ; Junquera, T. ; Chel, S. ; Mosnier, A.

Author_Institution

Inst. de Phys. Nucl., Orsay, France

fYear

1993

fDate

17-20 May 1993

Firstpage

855

Abstract

The thermal behaviour of a “fish hook” type HOM coupler for superconducting RF Cavities is analyzed by numerical simulation using a 3D finite element based code for both CW (rings, recirculating linacs) and pulsed (s.c. colliders studies like TESLA) accelerator types. Consequently, a thorough study of the thermal stability of this system is necessary in both transient and steady-state regimes. Numerical simulations, assuming anomalous losses at the end of the HOM inner conductor, were performed. The effects of the HOM coupler geometry and the materials thermal conductivity on the critical heat flux inducing the quench of the system are discussed

Keywords

beam handling equipment; cavity resonators; digital simulation; finite element analysis; physics computing; thermal conductivity of solids; waveguide couplers; CW accelerator; HOM couplers; critical heat flux; finite element; fish hook HOM coupler; higher order mode couplers; numerical simulation; pulsed accelerator; quench; recirculating linacs; superconducting RF cavities; thermal conductivity; thermal stability; Conducting materials; Couplers; Finite element methods; Geometry; Linear accelerators; Numerical simulation; Radio frequency; Steady-state; Thermal conductivity; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308750

Filename

308750