Patent ID: 7439523
Filing Date: 2008-10-21
Classification: C09K,C23C,G21K

Abstract:
1. A method for preparing a radiation image storage panel comprising a substrate and a layer of stimulable phosphor arranged thereon in an evaporation chamber maintained at a pressure of 0.1 to 10 Pa which comprises a step of heating a source of the stimulable phosphor in the evaporation chamber, whereby the source is evaporated to give a gaseous product and a subsequent step of depositing the gaseous product on the substrate which is above the source, whereby the layer of stimulable phosphor is formed on the substrate, in which the evaporation chamber has a diffusion preventing wall member surrounding a space between the source and the substrate, a top of which is positioned in the vicinity of a periphery of the substrate and a bottom of which is positioned in the vicinity of the source; and the diffusion preventing wall member is maintained at a temperature lower than a temperature of the source and higher than a temperature of the substrate.