Construction and test of a synchrotron dipole model using Nb<inf>3</inf>Sn cable

Abstract

A short dipole magnet for accelerator has been built using Nb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> Sn cable with the "wind and react" technique. The magnet has a two shell coil configuration similar to the "Doubler" dipole and the designed central field is 6 teslas. Details of the construction are given along with test results. Due to the high current density in the copper the protection of the dipole requires a sophisticated protection system which makes use of a fast superconducting switch associated with a secondary copper dipole for the extraction of part of the magnetic energy.