Abstract: A radiation image storage panel having a sintered or deposited stimulable phosphor layer is improved by impregnating the sintered or deposited phosphor layer with a thermosetting resin, an ultraviolet-curing resin or an electron beam-curing resin, and curing the impregnated resin.

Abstract: A radiation image storage panel preferably employable for a double-side reading system has a colored stimulate phosphor layer in which a ratio of weight of phosphor particles to binder is so adjusted as to vary in the direction of depth of the phosphor layer under the condition that a ratio of weight of phosphor particles to binder in a portion up to 1/5 of the depth of the layer from one surface of the layer is lower than the ratio of weight of phosphor particles to binder in the phospher layer, and the portion is colored more deeply than other portion of the phosphor layer.

Abstract: A process for preparing a radiation image storage panel having a support and a stimulable phosphor layer comprises the first step of forming a phosphor sheet comprising a binder and a stimulable phosphor and the second step of compressing the phosphor sheet on the support under heating up to a temperature of not lower than softening point or melting point of the binder, using a plurality of calender rolls giving different pressure, a combination of a calender roll and a preheating means, or a combination of a calender roll and a tension-applying means.

Abstract: A process is described for the perparation of radiation image storage panels. The process includes forming a phosphor sheet from stimulable phosphor and a thermoplastic elastomer binder, the binder having a softening point of 30.degree. to 300.degree. C. The phosphor sheet is then heated on a support and subsequently compressed by a calender roll under heating. The sheet during compression is maintained at or heated to a temperature not lower than the softening point of the binder so as to fix the phosphor sheet on the support.

Abstract: A stimulable phosphor sheet is exposed to radiation carrying image information of an object, and a radiation image of the object is thereby stored on the stimulable phosphor sheet. The stimulable phosphor sheet is then exposed to stimulating rays, which cause the stimulable phosphor sheet to emit light in proportion to the amount of energy stored thereon during its exposure to the radiation. The emitted light is photoelectrically detected, and an image signal representing the radiation image is thereby obtained. When the stimulable phosphor sheet is exposed to the radiation, the stimulable phosphor sheet is located such that it may make an angle falling within the range of 5 degrees to 60 degrees with respect to a plane, which is normal to the direction of travel of the radiation carrying the image information of the object. The image signal, which has been obtained by photoelectrically detecting the light emitted by the stimulable phosphor sheet, is corrected in accordance with the angle.

Abstract: A radiation image read-out apparatus comprises a single light guide member constituted of a light guiding material. The light guide member comprises two input end faces for collecting light, which is emitted along a scanning line of stimulating rays and from two surfaces of a stimulable phosphor sheet having a radiation image stored thereon, and output end faces for radiating out the light, which has entered into the light guide member from the two input end faces. A single photodetector is located in close contact with the output end faces and photoelectrically detects the light radiated out of the light guide member. The input end faces of the light guide member comprise a first input end face for collecting the light, which is emitted from the front surface of the stimulable phosphor sheet, and a second input end face for collecting the light, which is emitted from the back surface of the stimulable phosphor sheet.

Abstract: A process for preparing a radiation image storage panel having a support and a stimulable phosphor layer comprises the first step of forming a phosphor sheet comprising a binder and a stimulable phosphor and the second step of compressing the phosphor sheet on the support under heating up to a temperature of not lower than softening point or melting point of the binder, using a plurality of calender rolls giving different pressure, a combination of a calender roll and a pre-heating means, or a combination of a calender roll and a tension-applying means.

Abstract: A radiation image storage panel having a stimulable phosphor layer and an improved protective film is disclosed. The improved protective film is produced from a mixture of a film-forming resin and an oligomer having a polysiloxane skeleton or a perfluoroalkyl group. The improved protective film can be a coated layer containing a fluorocarbon resin which is soluble in an organic solvent. Otherwise, the improved protective film can be produced by coating on the phosphor layer a mixture of a film-forming resin composition containing a fluorocarbon resin which is soluble in an organic solvent, and a powdery resin of perfluoroolefin or silicone.

Abstract: Disclosed is a radiation image storage panel comprising a support and a compressed phosphor layer provided thereon which contains a phosphor and a binder of which 10 wt. %-100 wt. % content is thermoplastic elastomer. Further disclosed is a radiographic intensifying screen having the same structure as the above radiation image storage panel. The processes for preparation of the radiation image storage panel and the radiographic intensifying screen are also disclosed.

Abstract: Disclosed in a radiation image storage panel comprising a support and a compressed phosphor layer provided thereon which contains a phosphor and a binder of which 10 wt. %-100 wt. % content is thermoplastic elastomer. Further disclosed is a radiographic intensifying screen having the same structure as the above radiation image storage panel. The processes for preparation of the radiation image storage panel and the radiographic intensifying screen are also disclosed.

Abstract: A radiation image storage panel comprises a support made of a plastic film or a paper material, a stimulable phosphor layer and optionally one or more other layers. The radiation image storage panel contains an electroconductive zinc oxide whisker in at least one layer.

Abstract: Disclosed is a radiation image storage panel having a phosphor layer comprising a stimulable phosphor and a protective film provided on the phosphor layer via an adhesive layer, wherein at least one of the protective film, the adhesive layer and the phosphor layer contains an ultraviolet light absorbing agent. Also disclosed is a radiation image storage panel having a phosphor layer comprising a stimulable phosphor and a protective layer, wherein at least one of the protective film and the phosphor layer contains an ultraviolet light absorbing agent.

Abstract: A radiation image storage panel comprising a support made of plastic film or paper and a phosphor layer provided on the support which comprises a binder and a stimulable phosphor dispersed therein, characterized in that an antistatic layer which comprises a conductive material is provided on the surface of the support not facing the phosphor layer, or between the support and the phosphor layer.

Abstract: A radiation image storage panel comprising a support, a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein and a protective film, superposed in this order, which is characterized in that said protective film comprises a plastic material and has a water vapor transmission of not higher than 45 g/m.sup.2.24 hrs.

Abstract: A radiation image read-out apparatus comprises a light shielding material removal section for removing a light shielding material by dissolution or separation from a stimulable phosphor sheet comprising a stimulable phosphor layer and the light shielding material which is provided at least on a surface on the stimulable phosphor layer side and which is removable by dissolution in a solvent or by physical separation, the stimulable phosphor sheet carrying a radiation image stored on the stimulable phosphor layer. A read-out section is provided for reading out the radiation image by exposing the stimulable phosphor sheet, from which the light shielding material has been removed, to stimulating rays which cause the stimulable phosphor sheet to emit light in proportion to the stored radiation energy, and photoelectrically detecting the emitted light.

Abstract: A radiographic intensifying screen comprising a support and a phosphor layer provided on the support which comprises a binder and a phosphor dispersed therein, characterized in that said phosphor is a phosphor containing iodine and that said phosphor layer contains a compound having an epoxy group and/or at least one compound selected from the group consisting of phosphites, organotin compounds and metal salts of organic acids.

Abstract: A radiation image storage panel comprises a support made of a plastic film or a paper material, a stimulable phosphor layer and optionally one or more other layers. The radiation image storage panel contains a fibrous conductive material in at least one layer.

Abstract: An acoustooptic image can be formed by using a plate-like image sensor capable of increasing its optical density upon exposure to a radiation. The image sensor is exposed to a radiation bearing image information to record the image information on the image sensor. Then, pulsed light is applied to the image sensor to enable the same to generate a pressure wave commensurate with the recorded image information. The pressure wave is detected in synchronism with the pulsed light and converted into an electric signal, from which an image signal is reproduced. The image signal may be displayed on a CRT, or recorded on a magnetic recording medium, or reproduced on a photographic material.

Abstract: A process for the preparation of a cerium activated rare earth oxyhalide phosphor having the following formula:LnOX:xCein which Ln is at least one rare earth element selected from the group consisting of Y, La, Gd and Lu; X is at least one halogen selected from the group consisting of Cl, Br and I; and x is a number satisfying the condition of 0<x.ltoreq.0.1, which comprises:adding to a mixture of starting materials for the phosphor or a heat-treated product of said mixture at least one compound selected from the group consisting of tetrafluoroboric acid compounds, hexafluorosilicic acid compounds and metal fluorides in an amount of not more than 100% by weight per the amount of said mixture of starting materials or said heat-treated product thereof to mix them; andfiring the so obtained mixture.