Title :
Progress towards 1 ppm at 25 T
Author :
Bird, M.D. ; Bole, S. ; Eyssa, Y.M. ; Zhehong Can
Author_Institution :
High Magnetic Field Lab., Tallahassee, FL, USA
fDate :
3/1/2000 12:00:00 AM
Abstract :
The National High Magnetic Field Laboratory (NHMFL) is building a 25 T, 52 mm bore resistive magnet with field uniformity and stability of 1 ppm over a 1 cm diameter spherical volume (DSV). Upon completion the unshimmed magnet´s homogeneity was 48 ppm over 1 cm DSV. It has since been ferro-shimmed to 12 ppm over 1 cm DSV and we are in the process of shimming to the 1 ppm level. Details of the design, construction, shimming and stabilizing are presented.
Keywords :
electromagnets; 1 cm; 25 T; 52 mm; National High Magnetic Field Laboratory; construction; design; ferroshimmed magnet; resistive magnet; stabilization; unshimmed magnet; Birds; Boring; Buildings; Coils; Gallium nitride; Laboratories; Nuclear magnetic resonance; Space cooling; Stability; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
