Effects of transverse beam size in beam position monitors

Author

Kurennoy, Sergey S.

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1372

Abstract

The fields produced by a long beam,with a given transverse charge distribution in a homogeneous vacuum chamber are studied. Signals induced by the displaced finite-size beam on electrodes of a beam position monitor (BPM) are calculated and compared to those from a pencil beam. The non-linearities and corrections to BPM signals due to a finite transverse beam size are calculated for an arbitrary chamber cross section. Simple analytical expressions are given for a few particular transverse distributions of the beam current in a circular or rectangular chamber. Of particular interest is a general proof that in an arbitrary homogeneous chamber the beam-size corrections vanish for any axisymmetric beam current distribution

Keywords

ion accelerators; particle beam diagnostics; storage rings; analytical expressions; arbitrary chamber cross section; axisymmetric beam current distribution; beam position monitor; beam-size corrections; circular chamber; displaced finite-size beam; finite transverse beam size; homogeneous chamber; homogeneous vacuum chamber; pencil beam; rectangular chamber; transverse charge distribution; transverse distributions; Current distribution; Electrodes; Electrostatics; Frequency; Linear accelerators; Linear particle accelerator; Particle beam measurements; Signal analysis; Storage rings; US Department of Energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986684

Filename

986684