Design of 325 MHz Single and Triple Spoke Resonators at FNAL

Author

Apollinari, G. ; Gonin, I. ; Khabiboulline, T. ; Lanfranco, G. ; McConologue, F. ; Romanov, G. ; Wagner, R.

Author_Institution

Fermi Nat. Accelerator Lab., Batavia

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

1322

Lastpage

1325

Abstract

The proposed 8-GeV driver at FNAL is based on approximately 400 independently phased superconducting resonators. In this paper the design of 325 MHz spoke resonators, two single spoke resonators (beta = 0.21 and beta = 0.4) and a triple spoke resonator (beta = 0.62), for the high intensity neutrino source (HINS) front end is presented. We describe the optimization of the spoke resonator geometry, the goal being to minimize the E_PEAK/E_ACC and B_PEAK/E_ACC ratios. We report on the coupled ANSYS-MWS analysis on the resonator mechanical properties and power coupler RF design. The current status of mechanical design and slow tuning mechanism are also presented.

Keywords

accelerator RF systems; accelerator cavities; linear accelerators; neutrino sources; proton accelerators; superconducting resonators; FNAL; electron volt energy 8 GeV; frequency 325 MHz; high intensity neutrino source front end; power coupler RF design; single spoke resonator; superconducting resonators; triple spoke resonator; Acceleration; Design optimization; Iris; Linear particle accelerator; Neutrino sources; Particle beams; Proposals; Protons; Radio frequency; Superconducting microwave devices; Power coupler; slow tuner; spoke resonator; superconductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.897303

Filename

4277271