Preliminary results from prototype niobium cavities for the JLAB Ampere-class FEL

Author

Kneisel, P. ; Ciovati, G. ; Bundy, R. ; Clemens, B. ; Forehand, D. ; Golden, B. ; Manning, S. ; Manus, B. ; Marhauser, F. ; Overton, R. ; Rimmer, R.A. ; Slack, G. ; Turlington, L. ; Wang, H.

Author_Institution

Jefferson Lab., Newport News

fYear

2007

fDate

25-29 June 2007

Firstpage

2487

Lastpage

2489

Abstract

In a previous paper the cavity [1] design for an Ampere-class cryomodule was introduced. We have since fabricated a 1500 MHz version of a single cell cavity with waveguide couplers for HOM and fundamental power, attached to one end of the cavity, a 5-cell cavity made from large grain niobium without couplers and. a 750 MHz single cell cavity without endgroups to get some information about obtainable Q-values, gradients and multipacting behavior at lower frequency. This contribution reports on the various tests of these cavities.

Keywords

accelerator cavities; beam handling techniques; cryogenics; electron beams; free electron lasers; waveguide couplers; HOM; JLAB Ampere-class FEL; Q-values; beam pipe; cryomodule; electron beam welding; free electron laser; prototype niobium cavities; single cell cavity; waveguide couplers; Acceleration; Business continuity; Couplers; Frequency; Government; Niobium; Prototypes; Shape; Testing; Welding;

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.2007.4441292

Filename

4441292