Radiation dose detection device and radiation dose detection method

A radiation dose detection device comprising:

• a power supply circuit that outputs a power supply voltage;
• a first current source that outputs a first current dependent on an ambient temperature of the radiation dose detection device, using the power supply voltage;
• a second current source that outputs a second current dependent on a dose of radiation to the radiation dose detection device, using the power supply voltage;
• and
• a detection circuit that outputs a first signal indicating a temperature corresponding to a magnitude of the first current, and a second signal indicating a dose of radiation corresponding to a magnitude of the second current, wherein
• the first current source includes:
• one or more resistance change elements each including a first electrode layer, a second electrode layer, and a variable resistance layer between the first electrode layer and the second electrode layer, the variable resistance layer containing a transition metal oxide;
• a first node connecting the first electrode layers of the one or more resistance change elements;
• and
• a second node connecting the second electrode layers of the one or more resistance change elements,
• the first node is applied with the power supply voltage,
• the second node outputs the first current,
• the second current source includes a transistor,
• one terminal of the transistor is applied with the power supply voltage, and
• an other terminal of the transistor outputs the second current.