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We have succeeded in producing superconducting closed-loop coils from Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ tape. These coils can be operated in a persistent current mode even at temperatures ...
A novel system and method for magnetic tracking of a single subminiature coil is described. The novelty of the method consists in employing a large, 8 /spl times/ 8 array of coplanar transmitting ...
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