Stephen Brooks 🦆 on Nostr: npub10cq07…a6nm3 Probably liquid helium, as used for the Tevatron NbTi magnets, but ...

npub10cq07ulfyc7y2l8rczk9s36g8j65tq3m6xk9us8hr3ua4ktfmaqq9a6nm3 (npub10cq…6nm3) Probably liquid helium, as used for the Tevatron NbTi magnets, but they shut that down in 2011, so it could be something else. Liquid nitrogen isn't used that much because there aren't (yet) many good superconductors that work at 77K. HTS (high-temperature superconductors) are known, but still pretty difficult to craft into functioning magnet and RF devices. In 10 or 20 years it might be more widespread.