Generation of intense magnetic fields with high homogeneity

Author

Verma, S.P. ; Balasubramanyam, N.J.

Author_Institution

Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

2064

Lastpage

2068

Abstract

Various arrangements and geometries of air-core solenoids were investigated with a view to designing magnetic standards capable of producing magnetic fields in the range of 20-25 kG with a field homogeneity of 1 in 10⁵ or better over a spherical volume of 1-in diameter. An analysis based on the method of zonal harmonics is presented. The effect of different coil geometries on field intensity and homogeneity is studied. In the case of the two-coil system, the effect of coil separation on field homogeneity is examined for various coil geometries. The method of adding compensating windings to the cylindrical solenoid for improving the field homogeneity is also investigated. The field homogeneity figures are computed for certain coil arrangements. The severe problem of cooling high-powered air-core solenoids is examined

Keywords

magnetic fields; solenoids; standards; 20 to 25 kG; air-core solenoids; compensating windings; cooling problem; cylindrical solenoid; effect of coil separation; field intensity; geometries; high homogeneity; intense magnetic fields; magnetic standards; method of zonal harmonics; two-coil system; Coils; Linear particle accelerator; Magnetic fields; Magnetic resonance; Nuclear magnetic resonance; Nuclear physics; Nuclear power generation; Plasma accelerators; Shape; Solenoids;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250817

Filename

250817