Abstract
The TETRA tokamak systems code is used to compare designs for the International Thermonuclear Experimental Reactor (ITER) that use Nb3Sn and NbTi superconductor magnets. Similar minimum-cost devices are found with both types of conductors when superfluid helium (He-II) is used in conjunction with the NbTi. The cost of using NbTi with He-I cooling is much higher than that of using Nb3Sn or NbTi with He-II cooling. Generally, the minimum-cost devices occur for peak fields at the toroidal field coil of about 11.5-13 T, depending on the physics requirements. Sensitivities to the allowable stress level indicate strong cost increases when the stress is reduced from the nominal 600-MPa level and weaker cost benefits when the stress is allowed to reach higher levels.
Original language | English |
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Pages (from-to) | 1046-1050 |
Number of pages | 5 |
Journal | Fusion Technology |
Volume | 15 |
Issue number | 2 pt 2B |
DOIs | |
State | Published - 1989 |
Event | Proceedings of the Eighth Topical Meeting on the Technology of Fusion Energy - Salt Lake City, UT, USA Duration: Oct 9 1988 → Oct 13 1988 |