Title :
Cryogen free Nb/sub 3/Sn magnet, operated at 9.5 K with High Tc BiSrCaCuO (2212) current leads
Author :
Cowey, L. ; Cetnik, P. ; Timms, K. ; Daniels, P. ; Mellors, J. ; McDougall, I.
Author_Institution :
Oxford Instrum., UK
fDate :
6/1/1995 12:00:00 AM
Abstract :
A superconducting Nb/sub 3/Sn magnet has been operated in the absence of liquid cryogen utilising the cooling power of a 2 stage Gifford-McMahon cryocooler. The magnet generated 2.0 T in a 17 cm bore at a current of 145 A and a temperature of 9.5 K. Current was supplied via high T/sub c/ BiSrCaCuO (2212) current leads. The magnet demonstrated long term stability and was successfully quenched without any damage to the system; recovery was complete within 40 minutes.<>
Keywords :
bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; niobium alloys; strontium compounds; superconducting cables; superconducting magnets; tin alloys; 145 A; 17 cm; 2 T; 40 min; 9.5 K; BiSrCaCuO; Gifford-McMahon cryocooler; Nb/sub 3/Sn; long term stability; quenching; recovery; superconducting current leads; superconducting magnet; Boring; Ceramics; Coils; Cooling; Magnetic shielding; Niobium; Niobium-tin; Temperature distribution; Temperature sensors; Tin;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
