Patent ID: 6867418

Claim:
A radiation image sensor comprising: an image sensor having a plurality of one or two dimensionally arranged light receiving elements; a scintillator having a columnar structure and formed on a light-receiving surface of said image sensor to convert radiation into light including wavelength bands that can be detected by said image sensor; a resin frame disposed on a surface of the image sensor located on a side of the image sensor on which said scintillator is formed, and surrounding said scintillator, said resin frame having a height that is greater than that of said scintillator; a protective film formed so as to cover and adhere to said columnar structure of the scintillator and fixed to the resin frame; and a radiation-transmittable reflective plate having a flat reflective surface for the light from the scintillator and mounted on the protective film, wherein the reflective surface entirely covers the top surface of the scintillator.