Coupling impedance measurements of the SNS RF cavity and extraction kicker magnet

Author

Hahn, H. ; Blaskiewicz, M.M. ; Davino, D.

Author_Institution

SNS Project, Brookhaven Nat. Lab., Upton, NY, USA

Volume

5

fYear

2003

fDate

12-16 May 2003

Firstpage

3035

Abstract

The Spallation Neutron Source (SNS) is a high intensity machine with peak currents in the accumulator ring reaching ∼50 A at the 1.4 MW design level. This unprecedented beam intensity necessitates a careful investigation of coupling impedances posing as potential performance limitations. Impedance estimates of accelerator components pointed to the RF cavities and extraction kickers as the major contributors to the impedance budget and extensive measurements were performed on their prototypes. Impedance measurements were performed using the standard wire method.

Keywords

accelerator RF systems; accelerator cavities; accelerator magnets; electric impedance measurement; neutron sources; particle beam diagnostics; particle beam dynamics; particle beam extraction; proton accelerators; storage rings; 1.4 MW; SNS RF cavity; Spallation Neutron Source; accelerator components; accumulator ring; coupling impedance measurements; extraction kicker magnet; performance limitations; wire method; Capacitors; Ceramics; Couplings; Impedance measurement; Neutrons; Performance evaluation; Prototypes; Radio frequency; Resonance; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289805

Filename

1289805