Frequency dependence of the polarizability and susceptibility of a circular hole in a thick conducting wall

Author

Cheng, Wen-Hao ; Fedotov, Alexei V. ; Gluckstern, Robert L.

Author_Institution

Dept. of Phys., Maryland Univ., College Park, MD, USA

Volume

5

fYear

1995

fDate

1-5 May 1995

Firstpage

3266

Abstract

We calculate a generalized polarizability and susceptibility of a circular hole in a thick metallic plate as a function of hole dimensions and wavelength. In particular, we construct a variational form which allows us to obtain accurate numerical results with a minimum of computational effort. Numerical results are obtained for a variety of hole dimensions relative to the wave length. In addition, analytic results are obtained and shown to be accurate to second order in the ratio of the hole dimension to the wavelength for a vanishingly thin wall

Keywords

magnetic susceptibility; particle beam diagnostics; polarisability; circular hole; computational effort; frequency dependence; numerical results; polarizability; susceptibility; thick conducting wall; thick metallic plate; vanishingly thin wall; variational form; wavelength; Equations; Frequency dependence; Impedance; Iris; Laser excitation; Magnetic field measurement; Magnetic fields; Particle beams; Physics; Polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505850

Filename

505850