| 摘要 |
PROBLEM TO BE SOLVED: To reduce the inductance of an entire circuit system and to obtain a superconductive radiation detector with a short time constant by combining a superconductive quantum interference element that can be operated at a temperature of 1 K or less and a radiation detection element that is operated at 1 K or less on one chip. SOLUTION: Radiation being radiated from the outside is applied to a superconductive radiation detection element 1, generates a current signal inside, and is converted to a magnetic field signal by a coil 2, the magnetic field signal is converted to a voltage signal by the detection coil of a superconductive quantum interference element 4, and the voltage signal is converted to a current signal by resistance that the superconductive quantum interference element 4 itself has. The current signal is converted to a magnetic field signal by a coil 5 that is connected in series with the superconductive quantum interference element 4. The magnetic field signal being generated by the coil 5 is converted to a voltage signal by a superconductive quantum interference element 7. However, when there are each N coils 5 and superconductive quantum interference elements 7 and if a voltage ofΔV is generated per superconductive quantum interference element, the output voltage of the superconductive quantum interference element 7 reaches N(ΔV). The voltage is taken to the outside.
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