Design and analysis of a 25 T resistive NMR magnet

Author

Eyssa, Y.M. ; Bird, M.D. ; Gao, B.J. ; Schneider-Muntau, H.J.

Author_Institution

Nat. High Magnetic Field Lab., Tallahassee, FL, USA

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2546

Lastpage

2549

Abstract

A 25 Tesla resistive magnet with homogeneity of 1 ppm over 10 mm diameter spherical volume is being designed at the National High Magnetic Field Laboratory in Tallahassee, FL. The magnet consists of three concentric axially cooled Bitter stacks connected electrically in series. It will produce a peak field of 24.1 T in a 50 mm warm bore while consuming 15 megawatts of power and 25 T at 16.3 MW. Each of the stacks is designed to have a high uniformity by itself so the tolerance in axial positioning is not critical. Details of the magnet design, sensitivity to manufacturing tolerances and current distribution between cooling rings is presented

Keywords

NMR spectrometers; electromagnets; 15 MW; 25 T; 50 mm; concentric axially cooled Bitter stacks; cooling rings; current distribution; design; homogeneity; manufacturing tolerance sensitivity; resistive NMR magnet; uniformity; warm bore; Boring; Coils; Cooling; Laboratories; Magnetic analysis; Magnetic fields; Magnetic resonance; Nuclear magnetic resonance; Paramagnetic resonance; Superconducting magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511392

Filename

511392