Patent Number: 
Section: claims

1. A scintillator panel comprising:a substrate made of an organic material;a barrier layer formed on the substrate and including thallium iodide as a main component; anda scintillator layer formed on the barrier layer and constituted of a plurality of columnar crystals including cesium iodide with thallium added thereto as a main component. 2. The scintillator panel according to claim 1,wherein the organic material is polyethylene terephthalate. 3. The scintillator panel according to claim 1wherein the organic material is one selected from polyethylene naphthalate, polyimide, and polyetheretherketone. 4. A radiation detector comprising:a scintillator panel having a substrate made of an organic material, a barrier layer formed on the substrate and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and constituted of a plurality of columnar crystals including cesium iodide with thallium added thereto as a main component; anda sensor substrate including a photo-detection surface provided with a photoelectric conversion element receiving light generated in the scintillator panel,wherein the photo-detection surface of the sensor substrate faces the scintillator layer. 5. A radiation detector comprising:a substrate made of an organic material;a barrier layer formed on the substrate and including thallium iodide as a main component; anda scintillator layer formed on the barrier layer and constituted of a plurality of columnar crystals including cesium iodide with thallium added thereto as a main component,wherein the substrate has a photo-detection surface provided with a photoelectric conversion element receiving light generated in the scintillator layer.