Superconducting Magnets: The Heart of NMR
Thanks to superconductivity, magnets can provide a much higher magnetic field for a much smaller footprint and lower running costs than has ever been possible with permanent magnets or even resistive electromagnets. Indeed, the properties of the superconductors forming the magnet mean that they are capable of carrying large currents with no loss of energy. However, the issues involved in building such superconducting (SC) magnets are far from simple. Oxford Instruments Superconductivity have developed the world's largest commercial nuclear magnetic resonance (NMR) magnet and recently became the first company to produce 900 MHz magnets on a commercial basis.