CLIC Crab Cavity Design Optimisation for Maximum Luminosity

Journal Article · Wed Apr 25 00:00:00 EDT 2012 · Nuclear Instruments and Methods in Physics Research, Section A

OSTI ID:1039178

Dexter, A C; Burt, G; Ambattu, P K; Dolgashev, V; Jones, R

The bunch size and crossing angle planned for CERN's compact linear collider CLIC dictate that crab cavities on opposing linacs will be needed to rotate bunches of particles into alignment at the interaction point if the desired luminosity is to be achieved. Wakefield effects, RF phase errors between crab cavities on opposing linacs and unpredictable beam loading can each act to reduce luminosity below that anticipated for bunches colliding in perfect alignment. Unlike acceleration cavities, which are normally optimised for gradient, crab cavities must be optimised primarily for luminosity. Accepting the crab cavity technology choice of a 12 GHz, normal conducting, travelling wave structure as explained in the text, this paper develops an analytical approach to optimise cell number and iris diameter.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1039178
• Report Number(s): SLAC-REPRINT-2012-052; NIMAER; TRN: US1202090
• Journal Information: Nuclear Instruments and Methods in Physics Research, Section A, Vol. 657, Issue 1; ISSN 0168-9002
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
ALIGNMENT
CAVITIES
DESIGN
LINEAR ACCELERATORS
LINEAR COLLIDERS
LUMINOSITY
TRAVELLING WAVES
Accelerators
ACCPHY