PLANAR MULTIPOLE FIELD OF A PERMANENT MAGNET SYSTEM WITH QUASI-SEGMENTED AND TRAPEZOIDAL RING STRUCTURE

LIU MAO-SAN; WU WEN-TAI; LI SHU-ZHEN; LIU YU-CHENG; SHI CAI-TU; ZHOU JIE-MIN

Chinese Physics C> 1982, Vol. 6> Issue(2) : 251-254

PLANAR MULTIPOLE FIELD OF A PERMANENT MAGNET SYSTEM WITH QUASI-SEGMENTED AND TRAPEZOIDAL RING STRUCTURE

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Abstract：
The 2-dimension fields for the constant direction magnetized quasi-segment-ed, trapezoidal and plane head quasi-segmented multipiece ring system are analysedusing harmonic analytical method as the principle of "uniform magnetization". Someprecise analytical expression are given. As an example, magnetic field gradient of 16-pieces quasi-segmented, trapezoidal quadrupole is calculated and compared with a 16-pieces plane head segmented quadrupole.

References

[1]

刘茂三、陈仁怀、吴文泰、李淑珍, 多扇环形结构永磁多极系统场形的解析分析(简报):多扇环形结构永磁多极系统的二维场形分析(简报):多扇环形结构永磁多极系统的三维场形分析:定向磁化多扇环状永磁多极系统的场形分析(简报), 高能物理与核物理, 期、页依次为1(1981), 127; 6(1980),774; 4(1981),452; 5(1981),623,[2] 刘茂三、陈仁怀、吴文泰、李淑珍, “多体环状永磁多极系统的场形分析”, 原子核物理, 3(1981),376,[3] 刘茂三、陈仁怀、吴文泰、李淑珍、刘玉成、石才土, “多体平头环状永磁四极透镜与普通电磁透镜的性能比较、加速器学会1980年会议论文.

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LIU MAO-SAN, WU WEN-TAI, LI SHU-ZHEN, LIU YU-CHENG, SHI CAI-TU and ZHOU JIE-MIN. PLANAR MULTIPOLE FIELD OF A PERMANENT MAGNET SYSTEM WITH QUASI-SEGMENTED AND TRAPEZOIDAL RING STRUCTURE[J]. Chinese Physics C, 1982, 6(2): 251-254.

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Received: 1981-05-14
Revised: 1900-01-01

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