Radiation image read-out method and apparatus

摘要

Stimulating rays produced by a line light source are linearly irradiated onto an area of one surface of a stimulable phosphor sheet, on which a radiation image has been stored. The stimulating rays cause the sheet to emit light in proportion to an amount of energy stored thereon during its exposure to radiation. Light, which is emitted from the linear area of the one surface of the sheet exposed to the linear stimulating rays or from a linear area of the other surface corresponding to the linear area of the one surface, is received with a line sensor comprising photoelectric conversion devices arrayed along a length direction of the linear area of the sheet. The sheet is moved with respect to the line light source and the line sensor and in a direction different from the length direction of the linear area of the sheet. A distributed index lens array comprising distributed index lenses arrayed along the length direction of the linear area of the sheet is located between the sheet and the line sensor.