Losses in twisted composite superconductors in a high pulsed magnetic field

An experimental and theoretical study was made of losses in twisted composite superconductors in a strong pulsed magnetic field. The field amplitude reached 4.5T, and the magnetic field variation rate 2,000 T/sec. It is shown that the dependence of the specific heat release on the maximum rate of variation of the magnetic field is essentially nonmonotonic in nature. In the transition to the normal state, the specific losses are considerably lower than in an analogous sample at constant temperature. A comparison between theory and experiment is presented.