Analysis Of The Sis100 Superconducting Magnet Cooling

We present the cooling scheme of the superconducting SIS100 accelerator, which follows the Nuclotron design. This Nuclotron concept is based on forced two phase helium flow where the cooling channels of the individual magnets are connected in parallel to the helium supply lines. The cooling principle is described for both a single magnet and the magnet string and the analysis of the system parameters is given. It is shown, that for all requested operation modes, a uniform cooling of all magnets can be assured and will be stable. This stability will be achieved despite the fact that the SIS100 magnet size and losses are significantly larger than those of the Nuclotron magnets.