An optimal design of coaxial coils with constraints on inner and outer multipole magnetic fields

Author

Kitamura, Masashi ; Kakugawa, Shigeru ; Maki, Kohji

Author_Institution

Hitachi Res. Lab., Ibaraki, Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1862

Lastpage

1865

Abstract

An optimal design method for magnets with double-layered coaxial coils to generate a uniform central magnetic field and a small stray magnetic field has been proposed. To find the optimal current density distribution, we used linear programming with constraints on the multipole field strengths, computed with analytical formulae, of the central and stray fields. The final coil positions were optimized with a quasi-Newton method, again taking into account the inner and outer multipole field strengths.

Keywords

Newton method; current density; current distribution; linear programming; magnetic fields; superconducting coils; superconducting magnets; central fields; coaxial coils; coil position; current density distribution; linear programming; multipole field strength; multipole magnetic fields; quasi-Newton method; stray fields; stray magnetic field; uniform magnetic field; Coaxial components; Coils; Current density; Design methodology; Distributed computing; Linear programming; Magnetic analysis; Magnetic fields; Magnets; Optimization methods; Linear programming; optimization; quasi-Newton method; uniform magnetic field;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830884

Filename

1325173