Multi-layer composite for simultaneous tomography.

摘要

A multi-layer composite for simultaneous tomography comprises plural stimulable phosphor sheets (3a, b...n) and plural X-rays transmitting spacers (4), and each stimulable phosphor sheet and each spacer are laminated alternately. In the vicinity of the periphery of one surface of each spacer is provided a distinguishable mark made of X-rays absorbing material which is capable of discriminating or distinguishing the spacers from each other. The mark is positioned in contact with or close to one of stimulable phosphor sheets which adjoin the spacer having the mark.