| Paper | Title | Page |
|---|---|---|
WEPPD022 |
Test Results of SIS 300 Fast-Cycling Superconducting Quadrupole Prototype | |
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| IHEP has developed the superconducting quadrupole with a warm aperture of 105 mm, central gradient of 45 T/m, and 10 T/m/s gradient ramp rate for the fast-ramping heavy ion synchrotron SIS 300. This quadrupole has one layer shell-type coil, which is wound by cored 19-strands cable. The superconducting wire for the cable has been developed in Bochvar's institute especially for fast-ramping applications. With aim of reduction of losses in this wire the diameter of NbTi filaments was decreased up to 3 microns and a space around the filaments is filled by high-resistive alloy Сu-0.5%Мn. A cold test of quadrupole was performed. During training the maximum achieved current was 9.4 kA that is 95% of the critical current of the short sample. The maximum current of the magnet remains high at current ramp rate up to 5 kA/s. The AC losses were measured. | ||