Scintillator panel, radiation detector, radiation inspection device, and method for producing scintillator panel

A method for producing the scintillator panel, which comprises:

• a barrier rib formation step of forming a barrier rib on a substrate to divide into cells,
• a barrier rib auxiliary layer formation step of forming a barrier rib auxiliary layer on a surface of the barrier rib,
• a reflective layer formation step of forming a reflective layer on surfaces of the barrier rib and the barrier rib auxiliary layer, and
• a phosphor filling step of filling a phosphor into the cells divided by the barrier rib,
• to obtain a scintillator panel comprising a substrate, a grid-like barrier rib formed on the substrate, a phosphor layer in cells divided by the barrier rib, and a reflective layer surrounding the side and the bottom of the phosphor layer, the scintillator panel comprising a part where the reflective layer surrounding the side of the phosphor layer is curved and a part where opposing surfaces of the reflective layer at the side of the phosphor layer are approximately parallel,
• wherein a ratio in a width direction of a part where the reflective layer at the bottom of the phosphor layer is curved to a part where the reflective layer at the bottom of the phosphor layer is flat is 10.0:0 to 1.0:9.0, and
• a ratio in a thickness direction of the part where the reflective layer surrounding the side of the phosphor layer is curved to the part where opposing surfaces of the reflective layer at the side of the phosphor layer are approximately parallel is 0.5:9.5 to 7.0:3.0.