Patent ID: 7812315

Claim:
A radiation detector comprising: a scintillator panel comprising: a support substrate comprising an incidence surface for receiving a radiation image transmitted through an object to be inspected, the support substrate transmitting the radiation image; and a scintillator for converting the radiation image into a light image, the scintillator comprising a light emitting surface emitting the light image, the scintillator formed on a surface of the support substrate opposite to the incidence surface of the support substrate; wherein the support substrate comprises an aluminum substrate; an aluminum oxide layer formed on a surface of the aluminum substrate; a metal film, provided on the aluminum oxide layer, having a light reflectivity; a metal oxide layer provided on the metal film; and a protective film covering the metal oxide layer and having a light transparency, at least a portion of the protective film being positioned between the metal oxide layer and the scintillator; a reflective mirror for reflecting the light image emitted from the light emitting surface of the scintillator panel; and an image pickup device for converting the light image reflected from the reflective mirror into an electric signal, wherein the light image emitted from the scintillator panel has a wavelength to which the image pickup device is sensitive; the radiation detector further comprising an oxide layer covering the metal film and having a radiation transparency and a light transparency, the oxide layer comprising an SiO 2 film and a TiO 2 film.