Fig. 4From: Versatile cryogen-free cryostat for the electromagnetic characterization of superconducting radiofrequency coilsThe RF response of the HTS coil as a function of frequency (a) for different temperatures varying from 60 K to 83 K at 3 × 10− 5 W, and (b) for different incident power values (from 3 × 10− 5 W to 63 × 10− 2 W) at 70 KBack to article page