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Abstract

The upgrading of the SULTAN test facility requires the design and the construction of a set of three insert coils, one for each SULTAN partner, able to reach a field of 12 T in a 58 cm inner bore. The ENEA is engaged in the realization of one of these coils and this paper deals with the superconducting properties of the Nb-3A1 base wire which will be used for the composite cable of the ENEA insert coil. The wire made by 55 filaments of Nb-3A1 intermetallic compound is based on a fabrication technology developed several years ago and whose results have been reported elsewhere. Those conductors, however, were not designed for a particular magnet, so that when we started the design of the 12 T insert coil strong modifications in the whole fabrication process have been necessary in order to meet the specifications for this magnet. The present paper deals with a conductor developed "ad hoc" for the SULTAN insert coil and results concerning critical current density in high field and ultimate size of filaments are reported.

Additional information

Authors: BRUZZESE R, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);SACCHETTI N, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);SPADONI M, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);BARANI G, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);CERESARA S, ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);DONATI G ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY), ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY), ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);CENTRO RICERCHE LMI, FORNACI DI BARGA (LUCCA) (ITALY)
Bibliographic Reference: MT-9 CONFERENCE, ZUERICH (SWITZERLAND), SEPT. 9-13, 1985 PP. 1-8 WRITE TO SERVIZIO STUDI E DOCUMENTAZIONE - ENEA, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 - 00044 FRASCATI, ROMA (ITALY), MENTIONING REPORT RT/FUS/85/8, 1985
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