10 New Cavity Developments
A fundamental cavity mode system is the mainstream application of SRF to accelerators. SRF technology has expanded to deflecting/crab cavities, harmonic RF systems, and SRF photoinjectors, which all require specialized cavity designs with unconventional shapes and other uncommon elements.
10.1 Crab Cavities for LHC High Luminosity
To obtain the highest luminosities, high energy particle colliders populate beams with large numbers of bunches, then cross the beams at angles for acceptable bunch separation. But when bunches cross at an angle there is a geometrical loss of luminosity as there is not a good overlap between colliding bunches. A crab-crossing scheme for head-on bunch collision becomes necessary to correct ...
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