Calculated analysis of cooling down the superconducting magnetic system for the Nuclotron

The results of the calculated analysis of cooling down the magnetic system of the synchrotron-Nuclotron from 300 K to 4.5 K are presented. The principle of the calculations is described. The calculated results are compared with the experimental data on cooling down the superconducting magnetic system of the Nuclotron. Recommendations of choosing an optimum condition of cooling down are given.