JEOL Resonance has developed NMR magnet that operates on a minimum amount of liquid helium.
The Nuclear Magnetic Resonance (NMR) system is claimed to be capable of acquiring high resolution NMR data when liquid helium is scarce by reliquifying the helium gas generated by evaporation of the helium in the magnet. In the event of a power outage the helium reservoir will maintain the magnetic field for 4 days.
The cooling system design allows for biannual maintenance without affecting the high magnetic field of the super conducting magnet and minimises vibration and noise that can interfere with NMR signals.
JEOL Resonance offers a line of magnets with a magnetic field intensity ranging from 400 MHz (9.4 T) to 930 MHz (21.8 T). The company plans to incorporate the new technology in the models of higher magnetic field intensities such as 500 MHz (11.7 T) and 600 MHz (14.1 T) to offer a complete line of new NMR systems. Shipments will begin in May.