Coupling Impedance of a Periodic Array of Diaphragms (Erratum)
A method is presented for calculating the high-frequency longitudinal and transverse coupling impedances in a periodic array of diaphragms in a circular perfectly conducting pipe. The method is based on Weinstein's theory of diffraction of a plane electromagnetic wave on a stack of halfplanes. Using Weinstein's solution, it is shown that the problem of finding the beam field in the pipe reduces to an effective boundary condition at the radius of the diaphragms that couples the longitudinal electric field with the azimuthal magnetic one. Solving Maxwell's equations with this boundary condition leads to simple formulae for Z{sub long} and Z{sub tr}. A good agreement with a numerical solution of the problem found by other authors is demonstrated.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1046407
- Report Number(s):
- SLAC-PUB-6802; TRN: US201215%%447
- Journal Information:
- Conf.Proc.C950501:3303-3305,1995, Conference: Presented at 16th IEEE Part. Accel. Conf., PAC 95, and Int. Conf. on High Energy Accel., Dallas Tex., 1-5 May 1995
- Country of Publication:
- United States
- Language:
- English
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