Wakefields of very short bunches in an accelerating cavity

Conference · Sun Nov 01 04:00:00 EST 1987

OSTI ID:5732014

Bane, K; Sands, M

The behavior of the longitudinal and transverse wakefields of short bunches in an accelerating cavity has been examined. Computations of short time wakefields have been carried out using T. Weiland's computer program TBCI, which integrates Maxwell's Equations in the time domain. We present also our version of the diffraction model of the high frequency impedance of the cavity, a model originally suggested by Lawson. This model predicts a longitudinal impedance that varies as ..omega../sup -1/2/ and a transverse impedance that varies as ..omega../sup -3/2/ at high frequencies, with their ratio equal to ..omega..a/sup 2//(2c), where a is the radius of the beam tube. We find that as shorter bunches are used, the computations approach asymptotically the predictions of the diffraction model. 14 refs., 11 figs.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5732014
• Report Number(s): SLAC-PUB-4441; CONF-8708177-2; ON: DE88004629
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
ASYMPTOTIC SOLUTIONS
BEAM BUNCHERS
COHERENT SCATTERING
DIFFERENTIAL EQUATIONS
DIFFRACTION
EQUATIONS
MATHEMATICAL MODELS
MAXWELL EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
SCATTERING
WAKEFIELD ACCELERATORS