High-temperature superconducting thick-film double-frequency radio frequency coil for magnetic resonance imaging

The invention discloses a high-temperature superconducting thick-film double-frequency radio frequency coil for magnetic resonance imaging, which comprises a coil support, wherein an inner barrel is fixed on the coil support; the inner barrel and a coil outer barrel form a vacuum cavity; a liquid nitrogen cooling tank is arranged in the vacuum cavity; a heat conduction base layer is arranged on the inner surface of the liquid nitrogen cooling tank; the heat conduction base layer is a ceramic layer; a coil layer made of a high-temperature superconducting thick film material is arranged on the inner surface of the heat conduction base layer; the coil layer realizes superconduction at the temperature of -196 DEG C, and the resistance during superconduction is zero; the coil layer is a double-frequency radio frequency coil, the double-frequency radio frequency coil comprises four mutually independent units, two capacitors are arranged at the front end of each unit, and a capacitor is arranged at the rear end of e