For conventional MRI scanners, acquiring high-resolution images requires cooling the magnets to around -270 °C. To achieve this, the magnets are immersed in around 2,000 litres of liquid helium ...

This explanation would require helium II to have an abnormally low viscosity; at present, the only viscosity measurements on liquid helium have been made in Toronto 1, and showed that there is a ...

Users can purchase it as a complete system incorporated with superconducting magnets and a liquid helium dewar, or as an independent insert for incorporation into users’ existing equipment. With more ...