| 主权项 |
1. A radiation detector comprising:
a first scintillator including a first end surface positioned on a side of a first end in a predetermined direction, and a second end surface opposite to the first end surface and positioned on a side of a second end in the predetermined direction; a second scintillator disposed in parallel to the first scintillator in a direction intersecting the predetermined direction, and including a first end surface positioned on a side of a first end in the predetermined direction and a second end surface opposite to the first end surface and positioned on a side of a second end in the predetermined direction; a first photodetector configured to detect light emitted from the first end surface of each of the first and second scintillators; a second photodetector configured to detect light emitted from the second end surface of each of the first and second scintillators; a first light quantity adjusting member configured to transmit the light that is emitted from the first end surface of the first scintillator and is incident on the first photodetector, and adjust an amount of the light; a second light quantity adjusting member configured to transmit the light that is emitted from the second end surface of the second scintillator and is incident on the second photodetector, and adjust an amount of the light; and a position specifying unit configured to specify each radiation incident position on which each radiation has been incident in each of the first and second scintillators based on each result detected by the first and second photodetectors, wherein optical transmittance of the first light quantity adjusting member is smaller than optical transmittance of an optical path between the second end surface of the first scintillator and the second photodetector, and optical transmittance of the second light adjusting member is smaller than optical transmittance of an optical path between the first end surface of the second scintillator and the first photodetector. |
