Radiographic image detection device

摘要

A monocoque-structured housing accommodates a photoelectric conversion panel, a scintillator, and a circuit board in this order from an X-ray incidence side. The scintillator contains cesium iodide and converts X-rays into visible light. The scintillator is vapor-deposited on the photoelectric conversion panel. A plurality of pixels that photoelectrically convert the visible light into charges are formed in the photoelectric conversion panel. A signal processor, which reads out the charge from each pixel and generates image data, is mounted on the circuit board. A gap layer is formed between the scintillator and the circuit board.

主权项

1. A radiographic image detection device comprising:
a scintillator containing cesium iodide and converting radiation into visible light, the scintillator having a non-columnar crystal layer and a plurality of columnar crystals formed on the non-columnar crystal layer; a photoelectric conversion panel on which the scintillator is vapor-deposited and in which a plurality of pixels for photoelectrically converting the visible light into charges are formed, the non-columnar crystal layer being in close contact with the photoelectric conversion panel; a circuit board provided with a signal processor for generating image data based on the charges generated by the photoelectric conversion panel; a gap layer for preventing the plurality of columnar crystals from contacting to the circuit board, the gap layer being provided between the scintillator and the circuit board, the gap layer being provided with a first support, one of ends of the first support being fixed to the circuit board and the other end supporting the scintillator, wherein the gap layer being filled with air or inert gas; and a housing for accommodating the photoelectric conversion panel, the scintillator, the gap layer, and the circuit board in this order from a radiation incidence side on which the radiation is incident from a radiation source at the time of imaging.