Air Liquide Gas AB, the Swedish subsidiary of Air Liquide, recently announced that it has signed a 3 years liquid helium supplying contract with Swedish Nuclear Magnetic Resonance (NMR) center for one of the largest NMR spectrometer.
The spectrometer, used for structural studies of biological macromolecules, mainly composed of a large magnet - 5 meters high and weighing 10 tonnes
The magnetic field is generated by sending high intensity electricity into a super conductive coil.
Superconductivity is obtained by keeping this coil at very low temperature with liquid helium.
Once in operation, about 10,000 to 15,000 litres of liquid helium per year will be required to operate this NMR-spectrometer.
