Compensationof the crossing angle with crab cavities at KEKB

Author

Abe, Takashi ; Akai, K. ; Akemoto, M. ; Akiyama, A. ; Arinaga, M. ; Ebihara, Kenji ; Egawa, Ken ; Enomoto, Akihiro ; Flanagan, James L. ; Fukuda, Satoshi ; Fukuma, H. ; Funakoshi, Y. ; Furukawa, Kazuki ; Furuya, Tadasuke ; Hara, Kentaro ; Higo, Tatsuya ;

Author_Institution

KEK, Tsukuba

fYear

2007

fDate

25-29 June 2007

Firstpage

27

Lastpage

31

Abstract

Crab cavities have been installed in the KEKB B-factory rings to compensate the crossing angle at the collision point and thus increase luminosity. The beam operation with crab crossing has been done since February 2007. This is the first experience with such cavities in colliders or storage rings. The crab cavities have been working without serious issues. While higher specific luminosity than the geometrical gain has been achieved, further study is necessary and under way to reach the prediction of simulation.

Keywords

accelerator cavities; beam handling techniques; electron accelerators; storage rings; KEKB B-factory rings; beam operation; beam-beam parameter; betatron tunes; crab cavities; storage rings; Degradation; Electrons; Linear particle accelerator; Notice of Violation; Positrons; Predictive models; Production facilities; Resonance; Solid modeling; Storage rings;

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.2007.4440328

Filename

4440328