3 GHz Barrel Open Cavity (BOC) RF pulse compressor for CTF3

Author

Brown, P. ; Syratchev, I.

Author_Institution

CERN, Geneva, Switzerland

Volume

2

fYear

2004

fDate

6-11 June 2004

Firstpage

1009

Abstract

A prototype 3 GHz RF pulse compressor, based on a single \´Barrel shaped Open Cavity\´ (BOC), was designed, manufactured and successfully high power tested into a RF load. It is now planned to install five such devices in the CTF3 drive beam linac currently being built at CERN. A specific feature of the BOC is the so-called "whispering gallery" mode which has a high internal Q-factor. Contrary to other cavity-based pulse compressors, such as SLED or LIPS, with this mode one can operate in a resonant rotating wave regime. Consequently, when used as an RF pulse compressor a single BOC is sufficient, whereas the LIPS and SLED schemes require two cavities and a 3-dB hybrid. A short description of the BOC and the results of high power operation specific to the CTF3 drive beam linac are presented.

Keywords

Q-factor; cavity resonators; klystrons; linear accelerators; prototypes; pulse circuits; pulse compression; 3 GHz; Barrel Open Cavity; CTF3 drive beam linac; LIPS; Q-factor; RF pulse compressor; cavities; cavity based pulse compressors; klystron; prototype; resonant rotating wave regime; whispering gallery; Linear particle accelerator; Lips; Manufacturing; Prototypes; Pulse compression methods; Pulse shaping methods; Q factor; Radio frequency; Testing; Whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1339152

Filename

1339152