Polarizabilities of an annular cut and coupling impedances of button-type beam position monitors

Author

Kurennoy, Sergey S.

Author_Institution

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

Volume

5

fYear

1995

fDate

1-5 May 1995

Firstpage

3379

Abstract

The longitudinal and transverse coupling impedances of a small discontinuity on the accelerator chamber wall can be expressed in terms of the electric and magnetic polarizabilities of the discontinuity. The polarizabilities are geometrical factors and can be found by solving a static (electric or magnetic) problem. However, they are known in the explicit analytical form only for a few simple-shaped discontinuities, for example, for an elliptic hole in a thin wall. In the present paper the polarizabilities of a ring-shaped cut in the wall are obtained. The results are applied to calculate the coupling impedances of button-type beam position monitors

Keywords

particle beam diagnostics; polarisability; position measurement; annular cut; button-type beam position monitors; coupling impedances; discontinuity; electric polarizability; elliptic hole; longitudinal coupling impedances; magnetic polarizability; ring-shaped cut; transverse coupling impedances; Apertures; Impedance; Integral equations; Magnetic analysis; Magnetic separation; Magnetic susceptibility; Magnetostatic waves; Optical coupling; Polarization; Thin wall structures;

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.1995.505888

Filename

505888