Current sensing noise thermometer
AssigneeRoyal Holloway and Bedford New College
InventorsAndrew James Casey, John Saunders, Lev Vitalievich Levitin, Harriet Van Der Vliet
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Abstract
A current sensing noise thermometer comprising: a sensor resistor thermally coupled to a target to be measured; a superconducting coil; superconducting thermal breaks between respective ends of the sensor resistor and respective ends of the superconducting coil; and a superconducting flux sensor; wherein the sensor resistor, superconducting coil and superconducting thermal breaks form a loop inductively coupled to the superconducting flux sensor. There may be a noise filter between the sensor resistor and the superconducting coil.
Claims20
A current sensing noise thermometer comprising:
- a sensor resistor thermally coupled to a target to be measured;
- a superconducting coil;
- superconducting thermal breaks between respective ends of the sensor resistor and respective ends of the superconducting coil, the superconducting thermal breaks SCo, SC1 having a thermal conductance less than or equal to 10 nW/K;
- and a superconducting flux sensor;
- wherein the sensor resistor, superconducting coil and superconducting thermal breaks form a loop inductively coupled to the superconducting flux sensor.
Dependencies are inferred from the claim text.