Scintillator panel and radiation detector

A radiation detector comprising:

• a substrate including a principal surface and a plurality of photoelectric conversion elements formed on the principal surface;
• a scintillator layer disposed on the photoelectric conversion elements for converting radiation into scintillation light;
• a frame member disposed on the principal surface so as to surround the scintillator layer when viewed in a direction intersecting the principal surface;
• a protective layer disposed on the principal surface and the scintillator layer and fixed to the frame member so as to seal the scintillator layer;
• a sheet-shaped optical functional layer disposed between the scintillator layer and the protective layer;
• and
• an elastic member interposed between the optical functional layer and the protective layer and elastically deformed,
• wherein a height of the frame member from the principal surface is larger than a height of the scintillator layer from the principal surface,
• wherein the scintillator layer includes a plurality of columnar crystals of a scintillator material, and
• wherein the optical functional layer is pressed to the scintillator layer by an elastic force of the elastic member and comes in contact with the scintillator layer in a plurality of regions including tips of the plurality of columnar crystals.

A scintillator panel for converting radiation into scintillation light, the scintillator panel comprising:

• a substrate including a principal surface and having transparency with respect to the scintillation light;
• a scintillator layer disposed on the principal surface;
• a frame member disposed on the principal surface so as to surround the scintillator layer when viewed in a direction intersecting the principal surface;
• a protective layer disposed on the principal surface and the scintillator layer and fixed to the frame member so as to seal the scintillator layer;
• and
• a hard optical functional layer formed integrally on a surface of the protective layer facing the scintillator layer,
• wherein a height of the frame member from the principal surface is larger than a height of the scintillator layer from the principal surface,
• wherein the scintillator layer includes a plurality of columnar crystals of a scintillator material, and
• wherein the optical functional layer is pressed to the scintillator layer in a state where the protective layer is fixed to the frame member and comes in contact with the scintillator layer in a plurality of regions including tips of the plurality of columnar crystals.

A radiation detector comprising:

• a substrate including a principal surface and a plurality of photoelectric conversion elements formed on the principal surface;
• a scintillator layer disposed on the photoelectric conversion elements for converting radiation into scintillation light;
• a frame member disposed on the principal surface so as to surround the scintillator layer when viewed in a direction intersecting the principal surface;
• a protective layer disposed on the principal surface and the scintillator layer and fixed to the frame member so as to seal the scintillator layer;
• and
• a hard optical functional layer formed integrally on a surface of the protective layer facing the scintillator layer,
• wherein a height of the frame member from the principal surface is larger than a height of the scintillator layer from the principal surface,
• wherein the scintillator layer includes a plurality of columnar crystals of a scintillator material, and
• wherein the optical functional layer is pressed to the scintillator layer in a state where the protective layer is fixed to the frame member and comes in contact with the scintillator layer in a plurality of regions including tips of the plurality of columnar crystals.