High-speed image recording apparatus using stimulable phosphor sheets and lighttight envelope used for same

摘要

In a high-speed image recording apparatus, stimulable phosphor sheets are sequentially moved to an image recording position for exposure to X-rays passing through an object. X-ray images of objects are sequentially projected onto the stimulable phosphor sheets and stored therein. The stimulable phosphor sheets carrying the X-ray images stored therein are sequestially moved out of the image recording position into a lighttight magazine releasably mounted on the main body of the apparatus. The stimulable phosphor sheet is used in the bare form or in the form housed in a simple lighttight envelope fabricated of a flexible light shielding material and having a size sufficient to house the stimulable phosphor sheet therein. The lighttight envelope comprises an upper sheet and a lower sheet closely contacted with each other at least at one side and opened at least at one side opposite to the closely contacted side and at portions of two sides adjacent the ends of the opposite side up to points near the opposite side to allow access to a part of the stimulable phosphor sheet housed therein, thereby forming a wide inlet for the stimulable phosphor sheet. A small face-to-face fastener is positioned at a part of the opposite side.