Using it. Those magnets depends on superconducting, which is only possible at low, really low temperatures (often close to absolute zero at 0K). Also the energy that generates the magnetic field also generates a lot of heat. So we cool those magnets with liquid nitrogen.
Also the problem isn’t the liquid nitrogen but rather the liquid helium that is needed to reach the really low temperature ranges. Because helium is more scarce and expensive.
Ah then I didn’t read the method section long enough. I just read to the part where they describe they used helium to cool to 4 K. Thx for the correction!
Using it. Those magnets depends on superconducting, which is only possible at low, really low temperatures (often close to absolute zero at 0K). Also the energy that generates the magnetic field also generates a lot of heat. So we cool those magnets with liquid nitrogen.
Also the problem isn’t the liquid nitrogen but rather the liquid helium that is needed to reach the really low temperature ranges. Because helium is more scarce and expensive.
It’s described as “high-temperature superconducting” in the article, so “only” needs liquid nitrogen
Ah then I didn’t read the method section long enough. I just read to the part where they describe they used helium to cool to 4 K. Thx for the correction!