Design and analysis of high-field quasi-continuous magnets

Author

Campbell, L.J. ; Boenig, H.J. ; Rickel, D.G. ; Rogers, J.D. ; Schillig, J.B. ; Sims, J.R. ; Pernambuco-Wise, P. ; Schneider-Muntau, H.J. ; Van Bockstal, Luc

Author_Institution

Nat. High Magnetic Field Lab., Los Alamos Nat. Lab., NM, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2222

Lastpage

2225

Abstract

Pulsed magnets of 60 tesla or more flat-top of 100 ms (quasi-continuous) are among the user facilities to be provided by the NHMFL. The design of such magnets is constrained by available materials and thermal recycle time. The design path discussed here tailors materials and current densities of independent concentric coils. The progressive design steps are illustrated by a specific example of an eight-coil, 60 T magnet. In the preliminary design stage closed form calculations of magnetic, structural, thermal, and electrical circuit behavior are used to achieve a practical design that meets initial requirements. Design refinement incorporates finite element analyses and test results on materials, fabrication prototypes. Higher fields are possible without large changes

Keywords

electromagnets; 60 T; NHMFL; design path; eight-coil 60 T magnet; electrical circuit behavior; fabrication prototypes; finite element analyses; high-field quasi-continuous magnets; independent concentric coils; pulsed magnets; structural behavior; thermal behavior; thermal recycle time; Coils; Current density; Finite element methods; Magnetic analysis; Magnetic circuits; Magnetic materials; Magnetosphere; Magnets; Recycling; Refining;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305715

Filename

305715