MEASUREMENT OF CRITICAL PARAMETERS OF SUPERCONDUCTING SOLENOIDS AT THE TEMPERATURE ABOVE 4.2 K
The temperature dependence of the critical current of short samples of a superconducting wire made of НТ-50 alloy and laboratory solenoids of the same wire up to 4 kg in weight has been measured within the range of 4.2-8 K in magnetic field with induction up to 7 Т. The critical current of the solenoid differs from that of the short sample by no more than 10%. A possibility of cryostatting of superconducting solenoids (SCS) characterized by magnetic induction of 3-4 T at the temperature below 6 K has been demonstrated.