Performance of the ultra wide bore 900 MHz NMR magnet at the national high magnetic field laboratory

Author

Dixon, Iain R. ; Markiewicz, W. Denis ; Brey, William W. ; Shetty, Kiran K.

Author_Institution

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

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1334

Lastpage

1337

Abstract

A 900 MHz NMR magnet with a room temperature, clear bore of 105 mm was recently brought to full field at the NHMFL. The magnet was ramped to 21.1 T on its first run without incurring a quench, since installation into its final cryostat was completed. Issues on superconductor stability were present during magnet charging and are discussed. In addition, the magnet performance in terms of field uniformity and of field stability, with the implementation of a novel design concept of current injection, is presented.

Keywords

nuclear magnetic resonance; quenching (thermal); stability; superconducting magnets; 105 mm; 21.1 T; 900 MHz; National High Magnetic Field Laboratory; current injection; field stability; field uniformity; magnet charging; magnet performance; superconductor stability; ultra wide bore NMR magnet; Boring; High temperature superconductors; Laboratories; Magnetic fields; Niobium compounds; Nuclear magnetic resonance; Stability; Superconducting coils; Superconducting magnets; Titanium compounds; NMR magnets; stability; superconductivity; uniformity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849588

Filename

1439888