Cryogenic Tests Of The Main Hts Current Leads For The Sis100 Heavy Ion Accelerator Of The Fair Project

The superconducting dipole and quadrupole magnets of SIS100 accelerator are powered by 14 kA HTS current leads. The current leads are manufactured by the M&W Company in Denmark. The accelerator and test facilities will be equipped with 18 pairs of main HTS current leads in total. During quality control at GSI each pair of current leads passed the cryogenic Site Acceptance Test (SAT) at the Serial Test Facility (STF). Such tests include the following: leak measurements, pressure test at 20 bar, 14 kA DC current lead ramps, 13.2 kA cycling at 1 Hz and 17 kA training ramps. Analysis of the test results are presented in this paper.