Abstract: A method for joining multifilamentary superconductive wire comprises disposing the ends of the wires in a hot liquid metal stripping bath for removal of the metal matrix. In particular, in the present invention the ends of the wires to be joined are agitated within this bath to assure complete removal of the metal matrix. The liberated superconductive filaments are then disposed in a solder bath and then inserted into a mold which is filled with hot liquid superconductive solder which is allowed to solidify around the filamentary conductors after which the mold is removed.

Abstract: A test loop is included in soldered electrical connections of a superconducting magnet system which allows direct test evaluation of the connection to determine both its persistent current carrying ability, as well as its quench value immediately after it is fabricated. The test loop can be made a permanent part of the connection to allow checking the electrical integrity of the coil connections at any point in the manufacturing cycle of the superconducting magnet system.