RF design and processing of a power coupler for third harmonic superconducting cavities

Author

Li, Jianjian ; Harms, Elvin ; Kubicki, Tom ; Nicklaus, Dennis ; Olis, Daniel ; Prieto, Peter ; Reid, John ; Solyak, Nikolay ; Wong, Thomas

Author_Institution

FNAL, Batavia

fYear

2007

fDate

25-29 June 2007

Firstpage

2265

Lastpage

2267

Abstract

The FLASH user facility providing free electron laser radiation is built based on the TTF project at DESY. Fermilab has the responsibility for the design and processing of a third harmonic, 3.9 GHz, superconducting cavity which is powered via a coaxial power coupler. Six power couplers have been manufactured at CPI after successful design of the power coupler including RF simulation, multipacting calculation, and thermal analysis. The power couplers are being tested and processed with high pulsed power in an elaborate test stand at Fermilab now. This paper presents the RF design and processing work of the power coupler.

Keywords

accelerator RF systems; accelerator cavities; free electron lasers; FLASH user facility; RF design; coaxial power coupler; free electron laser radiation; frequency 3.9 GHz; third harmonic superconducting cavities; Analytical models; Assembly; Electrons; Optical reflection; Power system harmonics; Process design; Radio frequency; Testing; Waveguide components; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2007. PAC. IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

978-1-4244-0916-7

Type

conf

DOI

10.1109/PAC.2007.4441218

Filename

4441218