Magnetic field calculations of a permanent magnet insertion device for the advanced photon source

Author

Kim, S.H.

Author_Institution

Argonne Nat. Lab., IL, USA

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

1102

Lastpage

1104

Abstract

The magnetic fields of a hybrid undulator for the 7-GeV Advanced Photon Source (APS) were calculated. The 2-D geometries of the regular poles and the undulator´s end pole were chosen after finite-element analysis using the PANDIRA and PE2D codes. The field distributions in 3-D geometry were calculated using the TOSCA code. It is shown that the undulator dimensions should be chosen such that, that field integral along the z-axis for the operating gap of the undulator should be zero for the requirements of net zero positron beam deflection. It is noted that the TOSCA calculations in the 2-D limit agreed remarkably well with the results of PANDIRA and PE2D codes.

Keywords

finite element analysis; magnetic fields; permanent magnets; storage rings; 7 GeV; PANDIRA; PE2D; TOSCA code; advanced photon source; field distributions; finite-element analysis; hybrid undulator; magnetic fields; net zero positron beam deflection; permanent magnet insertion device; regular poles; z-axis; Geometry; Laboratories; Magnetic field measurement; Magnetic fields; Magnetic flux; Permanent magnets; Positrons; Synchrotron radiation; Two dimensional displays; Undulators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11422

Filename

11422