Patent Number: 
Section: claims

1. A deposition substrate comprising a support and a reflective layer disposed on the support,the reflective layer including light-scattering particles and a binder resin,the light-scattering particles present in a region extending in a thickness of from 0 to 0.5 μm from the surface of the reflective layer opposite to the surface in contact with the support toward the surface in contact with the support having an area average particle diameter of not more than 0.5 μm. 2. The deposition substrate according to claim 1, wherein the light-scattering particles include at least one selected from alumina, yttrium oxide, zirconium oxide, titanium dioxide, barium sulfate, silica, zinc oxide, calcium carbonate, glasses and resins. 3. The deposition substrate according to claim 1, wherein the light-scattering particles include at least one type of particles selected from hollow particles having a hollow portion within the particle, and porous particles. 4. The deposition substrate according to claim 1, wherein the light-scattering particles include at least titanium dioxide. 5. A scintillator panel comprising the deposition substrate described in claim 1, and a scintillator layer formed on the reflective layer of the deposition substrate by deposition, the scintillator layer including cesium iodide and at least one activator selected from at least thallium compounds, sodium compounds and indium compounds, the scintillator layer having a columnar crystal structure. 6. The scintillator panel according to claim 5, wherein the entire surface of the scintillator layer and a portion of the reflective layer are covered with a continuous protective film. 7. The scintillator panel according to claim 6, wherein the protective film is a protective film formed by a gas-phase method and includes at least one material selected from polyparaxylylene, polyurea and silicon dioxide (SiO2).