Fabrication and tests of prototype quadrupole magnets for the storage ring of the Advanced Photon Source

Author

Kim, S.H. ; Thompson, K.M. ; Black, E.L. ; Jagger, J.M.

Author_Institution

Argonne Nat. Lab., IL, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

2375

Abstract

Prototype quadrupole magnets for the Advanced Photon Source storage ring have been fabricated and tested. Mechanical stability of the magnet poles and acceptable field quality have been achieved. The measured magnetic fields in terms of multipole coefficients for the prototypes meet the requirements for the positron beam dynamics. Use of removable pole-tip geometries of pole-end bevels has been investigated in order to design the magnet endplate. In order to improve the excitation efficiency for the operation above 7 GeV, the pole geometry has been modified for the production magnets.<>

Keywords

beam handling equipment; electron accelerators; magnets; storage rings; Advanced Photon Source; excitation efficiency; field quality; magnet endplate; magnet poles; measured magnetic fields; mechanical stability; multipole coefficients; pole-end bevels; positron beam dynamics; production magnets; prototype quadrupole magnets; removable pole-tip geometries; storage ring; Fabrication; Geometry; Magnetic field measurement; Magnets; Positrons; Production; Prototypes; Stability; Storage rings; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164971

Filename

164971