In order to develop a cryogen-free high-field superconducting magnet generating over 20 T a YBa2Cu3O7 (Y123)-coated conductor insert coil is used to enhance a cryogen-free 18T superconducting magnet. The Y123 tape does not require stainless steel reinforcement. The Y123 insert coil which is almost the same size as the current Bi2Sr 2Ca2Cu3O10 (Bi2223) insert coil is designed to generate 7.5 T at 187 A. It is able to achieve this since without stainless steel reinforcement the number of turns can be greatly increased. A cryogen-free superconducting magnet can achieve a static magnetic field of 23 T which is higher than that generated by practical superconducting magnets using liquid helium.
ASJC Scopus subject areas
- Physics and Astronomy(all)