Take-off and recovery current behaviour of copper stabilized NbTi
✍ Scribed by T. Brodbeck; E. Seibt
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 379 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
For stability studies of Nb Ti/Cu superconductor specimens a simple measuring technique was applied to the determination of take-off and recovery currents. The studies were performed on various conductor geometries and with varied copper stabilizing fractions as a function of the magnetic field (B ~ 7.5 7") under helium bath and forced cooling conditions. The electrical matrix resistance and the maximum heat transfer current density in helium nucleate boiling determine the take-off current, while the recovery current is not only dependent on the matrix resistance, but also on the minimum heat transfer at film boiling and on heat conduction conditions.