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 ;
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;
