Development of superconducting solenoids from multifilamentary niobiumtin wires without stabilizing matrix and analysis of their thermal stability
✍ Scribed by V.E. Keilin; V.V. Lyikov; V.R. Romanovskii; M.I. Surin; S.A. Shevchenko
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 425 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Experience in developing superconducting solenoids from multifilamentary niobium-tin wires without stabilizing copper is presented. Such wires are the components of the conductor of the Tokamak 15 magnetic system. The heat treatment of the wire was carried out after winding the solenoid. Tests showed that currents close to the critical values for short samples can be achieved in the solenoids in fields qf Up to 12.3 T. The calculated stabilities of the Nb-Ti and Nb3Sn wires under local pulse disturbar~ces were compared to explain the results The Nb-Ti wires were shown to be more stable in low fields due to the presence of copper. In high fields the Nb3Sn wires proved to be more stable even without a stabilizing matri~