[cashsterling]

I can't read the full article but low-T MRI is potentially a big deal IMO because a 0.05T magnetic coil can be air or water-cooled but higher T-magnets (like 1.5 and 3T MRI magnets) have to use superconducting wire and thus must be cooled to sub 60K temperatures (even down to sub 10K) using Helium refrigeration cycles. I worked for a time at a company that made MRI calibration standards (among many other things).

helium refrigeration cycle equals:

- elaborate and expensive cryogenic engineering in the MRI overall design.

- lots of power for the helium refrigeration cycle.

- requirements for pure helium supply chain, which is not possible in many parts of the world, including areas of Europe, North America, etc.

[pbmonster]

> low-T MRI is potentially a big deal IMO because a 0.05T magnetic coil can be air or water-cooled

Even better, they just use a big permanent magnet.