Title :
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
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;
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
DOI :
10.1109/PAC.1991.164971
