Abstract
A test pancake magnet, equipped with a persistent superconducting switch, was fabricated with Bi-2223/Ag-Mg tape. The magnet was operated in persistent mode at 20 and 77 K. For large operating currents that forces the magnet to operate in the flux flow range, the field decays is exponentially with time. A simple circuit model is used to compute field decay time constants. It was also found that Pb-Sn solder joints are unsuitable for persistent mode operation.
Original language | English |
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Pages (from-to) | 1828-1831 |
Number of pages | 4 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 11 |
Issue number | 1 II |
DOIs | |
Publication status | Published - 2001 Mar |
Externally published | Yes |
Event | 2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sep 17 → 2000 Sep 22 |
Keywords
- Bi-2223
- HTS
- Magnet
- Persistent mode
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering