標題: Features of the magnetic field of a rectangular combined function bending magnet
作者: Hwang, CS
Chang, CH
Hwang, GJ
Uen, TM
Tseng, PK
電子物理學系
Department of Electrophysics
公開日期: 1-Jul-1996
摘要: Magnetic field features of the combined function bending magnet with dipole and quadrupole field components are essential for the successful operation of the electron beam trajectory. These fields also dominate the photon beam quality, The vertical magnetic field B-y(X,Y) calculation is performed by a computer code ''MAGNET'' at the magnet center ( s=0 ). Those results are compared with the 2-D field measurement by the Hall probe mapping system. Also detailed survey has been made of the harmonic field strength and the main features of the fundamental integrated strength, effective length, magnetic symmetry, tilt of the pole face, offset of the field center and the fringe field. The end shims that compensate for the strong end negative sextupole field to increase the good field region for the entire integrated strength are discussed. An important physical feature of this combined function bending magnet is the constant ratio of dipole and quadrupole strength integral Bds/integral Gds which is expressed as a function of excitation current in the energy range 0.6 to 1.5 GeV.
URI: http://dx.doi.org/10.1109/20.511515
http://hdl.handle.net/11536/1191
ISSN: 0018-9464
DOI: 10.1109/20.511515
期刊: IEEE TRANSACTIONS ON MAGNETICS
Volume: 32
Issue: 4
起始頁: 3032
結束頁: 3035
Appears in Collections:Conferences Paper


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