Stability measurements on a 1-T high temperature superconducting magnet

Autor: Robert E. Schwall, J.M. Campbell, Lawrence Dresner, D. Aized, J.W. Lue, S.W. Schwenterly
Rok vydání: 1995
Předmět:
Zdroj: IEEE Transactions on Appiled Superconductivity. 5:230-233
ISSN: 1051-8223
DOI: 10.1109/77.402531
Popis: A high temperature superconducting magnet based on Bi-2223 conductor was built at the American Superconductor Corporation. The magnet was constructed by a react and wind technique using conductors made from a metallic precursor process. It has a winding ID of 25.4 mm, OD of 87.6 mm, and height of 107.3 mm. A heater, two thermometers, and several voltage taps were built into the high field region of the magnet for stability measurements. The magnet generates 1.1 T central field at 4.2 K when operating at 1 /spl mu/V/cm over the entire conductor length, including all the joints. Stability measurements were performed in background fields up to 2.5 T from 4.2 K to 77 K. Stability margins more than 2 orders of magnitude higher than a low temperature superconductor were observed. >
Databáze: OpenAIRE