Abstract: A light irradiating device provided with line light sources is located in association with an image recording medium. The line light sources are located in parallel and at approximately identical pitches with respect to a scanning direction. A slit array plate having slits is located between the image recording medium and the light irradiating device. Each of the slits is located at a position corresponding to the position of one of the line light sources. The light irradiating device is controlled such that line light beams are radiated out one after another with different timing from the line light sources.

Abstract: A radiation image is read out by causing a linear reading light beam to scan a radiation image sensor, which has a plurality of parallel linear electrodes to output charge signals according to the radiation image upon exposure to a reading light beam in the longitudinal direction of the linear electrodes, and obtaining an image signal by integrating charge signals, output by the respective linear electrodes in response to the scan of the reading light beam. A pulsed light beam which is projected onto the radiation image sensor for a predetermined time in each of the integrating times is employed as the reading light beam, and projection of the pulsed light beam is controlled so that the center of the time for which the pulsed light beam is projected onto the radiation image sensor is earlier than the center of the integrating time.

Abstract: A breast image obtaining apparatus using a solid-sate detector, or stimulable phosphor panel capable of correctly obtaining image information up to the area closer to the chest wall of a subject. when picking up the image, the solid-state detector is moved to a place close to the side wall of the housing on the chest wall side by the moving means to pick up the image up to the area close to the chest wall, and when reading the image, it is moved to the opposite direction to secure the overrun zone between the side wall of the housing and end of the solid-state detector on the subject side. By completing acceleration or deceleration of the reading light exposure section within this zone, the scanning rate of the reading light exposure section is maintained constant across the entire region of the solid-state detector.

Abstract: Disclosed is a solid state detector which comprises a photo-conductive layer for generating charges upon irradiation of recording light and a substrate laminated to the photo-conductive layer, the substrate having a thermal expansion coefficient different from that of the photo-conductive layer. The solid state detector prevents deformation and breakdowns due to temperature changes of environments. Specifically, the solid state detector comprises a photo-conductive layer and a substrate laminated to the photo-conductive layer, the substrate having a thermal expansion coefficient smaller than that of the photo-conductive layer. In the solid state detector a deformation suppression layer, which has a thermal expansion coefficient smaller than that of the photo-conductive layer and suppresses deformation resulting from thermal expansion of the photo-conductive layer and the substrate, is laminated on a side of the photo-conductive layer opposite from the side of the substrate.

Abstract: An image reading apparatus includes a casing having a side panel which has a cassette loading slot defined therein for loading a cassette therein. A stimulable phosphor sheet stored in the cassette loaded in the cassette loading slot is removed from the cassette and fed vertically downwardly along a first vertical feed path. Radiation image information recorded in the stimulable phosphor sheet is read by a reader. Thereafter, the stimulable phosphor sheet is stored back into the cassette, which is then delivered toward a cassette unloading slot by a sliding displacement mechanism. The stimulable phosphor sheet is removed again from the cassette, and fed along a second vertical feed path for an eraser to erase remaining radiation image information from the stimulable phosphor sheet.

Abstract: A line light source system includes a line light source formed by a number of linearly arranged light emitting elements. A pair of cylindrical lenses converges the light bundles emitted from the respective light emitting elements in a direction perpendicular to the direction in which the light emitting elements are arranged, and a pinhole array limits the angle of divergence of the light bundles emitted from the respective light emitting elements with respect to the optical axis of the cylindrical lenses in a direction parallel to the direction in which the light emitting elements are arranged.

Abstract: Deterioration of a photoconductive layer is prevented, by suppressing the application of heat during connection of a second electrode with an external terminal. A solid state detector is constituted by: an external terminal, which is electrically connected to a voltage source for applying a recording voltage to the second electrode when recording image information at a charge accumulating portion; and a connecting member formed by a conductive elastic material, of which a first end is fixed to the external terminal, and a second end contacts the second electrode by elastic force.

Abstract: Reference signal components obtained in an initial state from outputs of photoelectric conversion devices of a line sensor having received reference light produced by a reference light source are stored. The line sensor is caused to receive the reference light at a stage immediately before image readout is performed. Sensitivity signal components are acquired from the outputs of the photoelectric conversion devices having received the reference light at the stage immediately before the image readout is performed. The sensitivity signal components and the reference signal components are compared with each other, and sensitivity correction signal components for making a correction for variations in sensitivity among the photoelectric conversion devices are obtained. A correction of the output signal components, which are acquired from the photoelectric conversion devices during the image readout, is made with the sensitivity correction signal components.

Abstract: Deterioration of a photoconductive layer is prevented, by suppressing the application of heat during connection of a second electrode with an external terminal. A solid state detector is constituted by: an external terminal, which is electrically connected to a voltage source for applying a recording voltage to the second electrode when recording image information at a charge accumulating portion; and a connecting member formed by a conductive elastic material, of which a first end is fixed to the external terminal, and a second end contacts the second electrode by elastic force.

Abstract: A high speed translation device for use with radiographic media with a scanning stage (10) adapted for movement in a first and second direction (11, 13) along a first axis (14); a second scanning module stage (12) disposed opposite the first scanning stage for movement in a third and fourth direction (15, 16) along a second axis (17); a first and a second scanning module mounted on the first and second scanning stages, respectively; a control processing unit (58) adapted to combine the scanned images from each scanning module; and a continuous drive cable (20) with a first pin (22) for sequentially moving the scanning stage from a first position (25) to a second position (27); a second pin (30) for moving the balancing stage simultaneously with the scanning stage initially in a third position (29) to the fourth position (31); wherein the first pin moves the balancing stage from the fourth position to the third position while second pin moves the scanning stage from the second position to the first position.

Abstract: Deterioration of a photoconductive layer is prevented, by suppressing the application of heat during connection of a second electrode with an external terminal. A solid state detector is constituted by: an external terminal, which is electrically connected to a voltage source for applying a recording voltage to the second electrode when recording image information at a charge accumulating portion; and a connecting member formed by a conductive elastic material, of which a first end is fixed to the external terminal, and a second end contacts the second electrode by elastic force.

Abstract: A semiconductor sensor for direct detection of electrons has a pixel structure in which a capacitance is designed to each pixel that stores a charge and converts the charge into a readable voltage. A conductive layer substantially covers the pixel structure. The conductive layer includes pixel surface coatings, each of which cover an individual pixel. Each pixel surface coating is separated from each adjoining pixel surface coating by a gap. A second conductive layer covers a surface of the gap. An insulation insulates the pixel surface coating from the second conductive layer. The conductive layers may be metal or other conductive, light impervious materials. The second conductive layer may include a capacitor electrode.

Abstract: An image recording medium includes a support and a first electrode layer, a reading photoconductive layer which exhibits conductivity upon exposure to a reading electromagnetic wave, a charge accumulating portion which accumulates an electric charge of a latent image polarity generated in a recording photoconductive layer, the recording photoconductive layer which exhibits conductivity upon exposure to a recording electromagnetic wave and a second electrode layer which are superposed on the support one on another in this order. At least one of the recording photoconductive layer and the reading photoconductive layer is formed of a material containing a-Se as a major component and doped with a material for suppressing bulk crystallization of a-Se.

Abstract: A radiation image detector capable of producing an appropriate synchronization signal for reading out image signals from the detector with a simple structure. A synchronization signal generating electrode is provided in parallel with the striped electrode comprised of a plurality of linear electrodes for reading out the radiation image, which is formed such that a section greater than or equal to a threshold size and a section smaller than the threshold size in width in the direction substantially orthogonal to the longitudinal direction of the striped electrode are disposed alternately in the longitudinal direction of the striped electrode, and the sections greater than or equal to the threshold size are disposed in the longitudinal direction at a predetermined pitch. Charges that change cyclically in amount are read out from the radiation image recording section through the synchronization signal generating electrode to generate the synchronization signal.

Abstract: A solid state radiation detector provided with sub-stripe electrodes, which is capable of reading out stored charges efficiently. A first conductive layer, a recording photoconductive layer, a charge transport layer, a reading photoconductive layer, a second conductive layer provided with stripe electrodes composed of a large number of linear elements and sub-stripe electrodes composed of a large number of linear elements, an insulating layer, and a support body are arranged in accordance with the order listed above, light-shielding films are provided on portions on the support body, which correspond to the sub-stripe electrodes and the spaces between the stripe electrodes and the sub-stripe electrodes, and thus a solid state radiation detector is constituted. In this case, when a pair of the stripe electrode and the sub-strip electrode is defined as one cycle, the cycle is set to range from 10 ?m through 150 ?m.

Abstract: An image recording medium includes a first electrode layer permeable to a recording electromagnetic wave carrying thereon image information, a recording photoconductive layer which generates electric charges according to the image information upon exposure to the recording electromagnetic wave and stores the electric charges and a second electrode layer for reading the electric charges stored in the recording photoconductive layer, which are superposed one on another in this order. An anti-discharge member for preventing occurrence of an electric discharge on the periphery of the first electrode layer is provided only on the periphery of the first electrode layer.

Abstract: An image detector for use has a constitution of serial lamination of a first stripe electrode, a first rectifying layer with multiple photodiodes which takes on conductivity upon receiving irradiation of recording light, a second rectifying layer with multiple diodes of a reverse polarity to the first rectifying layer, and a second stripe electrode. Upon recording, a voltage is applied between the first stripe electrode and the second stripe electrode, whereby uniform electric charges are accumulated in the capacitor. Then, the recording light is irradiated from the first stripe electrode side, so that electric charges for a latent image on the capacitor are annihilated in accordance with a dosage of the recording light. Upon retrieval, a given voltage is applied between each of elements on the first stripe electrode and elements on the second stripe electrode, whereby a charged currents flowing into the image detector 10 is detected.

Abstract: A pump-probe scheme measures the rise time of ultrafast x-ray pulses. Conventional high speed x-ray diagnostics (x-ray streak cameras, PIN diodes, diamond PCD devices) do not provide sufficient time resolution to resolve rise times of x-ray pulses on the order of 50 fs or less as they are being produced by modern fast x-ray sources. Here, we are describing a pump-probe technique that can be employed to measure events where detector resolution is insufficient to resolve the event. The scheme utilizes a diamond plate as an x-ray transducer and a p-polarized probe beam.

Abstract: An apparatus includes: a switch for switching voltage application from a power source to a detector; a voltage generator for supplying high voltage to a radiation source; and a control means for controlling a light source control means. When a control signal input to the switch is set to low voltage and an electrode of a first conductive layer and a stripe electrode are set at same potential, the control means sets control signal input to the light source control means to low voltage, making a planar light source emit preexposure light to perform empty reading, wherein preexposure light is irradiated onto a reading photoconductive layer. After irradiation of preexposure light and empty reading is stopped, radiation is irradiated onto the first conductive layer while recording voltage causing avalanche amplification is applied between the first conductive layer and the stripe electrode, thereby recording an electrostatic latent image in the detector.

Abstract: An electrostatic recording material, on which image information has been recorded as an electrostatic latent image, and which is capable of outputting a signal in accordance with the electrostatic latent image by being subjected to exposure scanning with reading light having been produced by a reading light source, is obtained. Electrostatic shielding is performed between a moving member, which is capable of moving at the time of the exposure scanning of the electrostatic recording material with the reading light, and which has characteristics of undergoing capacity coupling with the electrostatic recording material, and the electrostatic recording material. The exposure scanning is performed in this state.

Abstract: In a process for producing an alternate striped electrode array in which transparent electrodes alternate with opaque electrodes: the opaque electrodes are formed on a transparent base; a continuous, transparent conductive film is formed on the opaque electrodes and the transparent base; a continuous, negative resist film is formed on the transparent conductive film; a resist pattern corresponding to the opaque electrodes is formed by using the opaque electrodes as a mask and applying a predetermined type of electromagnetic radiation from the back surface of the transparent base to the negative resist film; and the transparent conductive film is etched by using the resist pattern as a mask so that a portion of the transparent conductive film which remains after the etching is separated from the opaque electrodes and forms the transparent electrodes.

Abstract: A radiation image detector capable of producing an appropriate synchronization signal for reading out image signals from the detector with a simple structure. A synchronization signal generating electrode is provided in parallel with the striped electrode comprised of a plurality of linear electrodes for reading out the radiation image, which is formed such that a section greater than or equal to a threshold size and a section smaller than the threshold size in width in the direction substantially orthogonal to the longitudinal direction of the striped electrode are disposed alternately in the longitudinal direction of the striped electrode, and the sections greater than or equal to the threshold size are disposed in the longitudinal direction at a predetermined pitch. Charges that change cyclically in amount are read out from the radiation image recording section through the synchronization signal generating electrode to generate the synchronization signal.

Abstract: A radiation image detector that includes a radiation image recording medium capable of recording a radiation image and detects the signal outputted from the medium in accordance with the radiation image recorded on the medium, in which a real-time signal is obtaining with a simple and low-cost structure of the detector while the medium is being exposed to radiation. The charges generated in the photoconductive layer and stored in the storage section are detected by the first detecting section with the use of the first and second striped electrodes, each made of a plurality of wire electrodes, and the real-time signal while the medium is being exposed to radiation is obtained by the second detecting section connected to the second striped electrode by detecting the current flowing through the second striped electrode in accordance with the amount of charges generated in the photoconductive layer.

Abstract: The reading side conductive layer of a solid sensor is provided with a photo-charged pair generating electrode formed by a plurality of linear electrodes and a photo-charged pair non-generating electrode formed by a plurality of linear electrodes arranged alternately with the linear electrodes of the photo-charged pair generating electrode. The linear electrodes of the photo-charged pair generating electrode are connected to a read-out apparatus, which reads out the latent image charge. The linear electrodes of the photo-charged pair generating electrode forming one pixel are provided with a bypass connection which, when a part of the linear electrodes is broken, allows outputs of the part of the broken linear electrode on the side of the broken part remote from the read-out apparatus to be detected by the read-out apparatus bypassing the broken part of the linear electrode.

Abstract: An image information read-out apparatus includes an image read-out system which is provided with a line reading light source for scanning a recording medium with a line reading light beam and reads out image information from the recording medium in response to the line reading light source scanning the recording medium, and an image read-out system moving mechanism which moves the image read-out system inclusive of the recording medium and the line reading light source. A scanning detecting system detects that the line reading light source is scanning the recording medium with the line reading light beam, and an alarm informs the operator that the line reading light source is scanning the recording medium with the line reading light beam when the scanning detecting system detects the fact.

Abstract: An image recording medium includes a support and a first electrode layer, a reading photoconductive layer which exhibits conductivity upon exposure to a reading electromagnetic wave, a charge accumulating portion which accumulates an electric charge of a latent image polarity generated in a recording photoconductive layer, the recording photoconductive layer which exhibits conductivity upon exposure to a recording electromagnetic wave and a second electrode layer which are superposed on the support one on another in this order. At least one of the recording photoconductive layer and the reading photoconductive layer is formed of a material containing a-Se as a major component and doped with a material for suppressing bulk crystallization of a-Se.

Abstract: With a detector 10 with which a first electrode layer 11, a photoconductive layer for recording, 12, exhibiting conductivity when irradiated with recording light L1, a charge transporting layer 13 acting roughly as a conductor for transported charges opposite in polarity to the latent image charges, a photoconductive layer for reading, 14, exhibiting conductivity when irradiated with reading light L2, and an electrode layer 15 having a stripe electrode are stacked together, a sub-electrode 17, a number of elements 17a of which are each located just above an element 16a, being disposed so that they are opposed to each other, is provided in the vicinity of a charge storing section 19 in the photoconductive layer for recording, 12. In recording, a specified control voltage is applied to the sub-electrode 17 from a power supply 73. In reading, the current flowing out from each element 17a of the sub-electrode 17 is detected.

Abstract: A planar electrostatic recording material records image information as an electrostatic latent image and generates electric currents in accordance with the latent image when a read-out surface of the electrostatic recording material is scanned with a reading electromagnetic wave. A flat plate-shaped substrate, which has permeability with respect to the reading electromagnetic wave, supports the electrostatic recording material from a side of the read-out surface. A flat plate-shaped base plate supports the substrate from a side opposite to a surface of the substrate, on which surface the electrostatic recording material is formed. The base plate has a rigidity higher than the rigidity of the substrate and has permeability with respect to the reading electromagnetic wave.

Abstract: An image recording medium includes: a support which is transparent to radiation for use in recording, and resistant to shock; a wavelength conversion layer which contains an organic binder and a fluorescent material which converts the radiation into visible light; a first electrode layer which is transparent to the visible light; a recording-side photoconductive layer which exhibits photoconductivity when the recording-side photoconductive layer is exposed to the visible light; a charge storage region which stores electric charges which are generated in the recording-side photoconductive layer in response to exposure to the visible light; a reading-side photoconductive layer which exhibits photoconductivity when the reading-side photoconductive layer is exposed to reading light; and a second electrode layer which is transparent to the reading light.

Abstract: In an image recording medium, in which a size of a first electrode layer is smaller than a recording photoconductive layer, image quality is enhanced by preventing an influence of corona discharge at an end portion of the first electrode layer and electric charge injection into the recording photoconductive layer. The on and off state of the retrieving light irradiating means is controlled in a manner that an electromagnetic wave for retrieval is not irradiated onto end portions of a non-imaging region of a retrieving photoconductive layer corresponding to a peripheral portion on an upper surface of the recording photoconductive layer where the first electrode layer is not provided, thus avoiding retrieval of a false image signal attributable to corona discharge at the end portion of the first electrode layer and electric charge injection from the end portion of the first electrode layer into the recording photoconductive layer.

Abstract: A device for detecting energy radiation includes a semiconducting material capable of converting the radiation into electric charges, a measurement electrode, and a measurement circuit to measure the current delivered by the electrode. The device further includes polarisation electrodes constituted of conductive zones insulated electrically from each other, the polarisation electrodes and a measurement electrode sandwiching the material, and a voltage supply adapted to bring each of these conductive zones to an adjustable voltage.

Abstract: An X-ray flat panel detector includes sensor elements constituted by a plurality of effective pixels that detect X-rays and a plurality of dummy pixels that are arranged adjacent to the effective pixel area and generate electrical signals irrelevant to X-rays, signal lines which read out electrical signals from the respective pixels, scanning lines which scan the respective pixels, a first electrostatic wiring line which distributes static electricity accumulated in the signal lines, and a second electrostatic wiring line which distributes static electricity accumulated in the scanning lines. A plurality of dummy pixels are classified into a DA area where noise superposed on the signal lines are removed and a DB area where noise superposed on the scanning lines are removed. The first and second electrostatic wiring lines are laid out around the sensor elements, and physically disconnected between the DA area and the DB area.

Abstract: Reference signal components obtained in an initial state from outputs of photoelectric conversion devices of a line sensor having received reference light produced by a reference light source are stored. The line sensor is caused to receive the reference light at a stage immediately before image readout is performed. Sensitivity signal components are acquired from the outputs of the photoelectric conversion devices having received the reference light at the stage immediately before the image readout is performed. The sensitivity signal components and the reference signal components are compared with each other, and sensitivity correction signal components for making a correction for variations in sensitivity among the photoelectric conversion devices are obtained. A correction of the output signal components, which are acquired from the photoelectric conversion devices during the image readout, is made with the sensitivity correction signal components.

Abstract: A breast image obtaining apparatus using a solid-sate detector, or stimulable phosphor panel capable of correctly obtaining image information up to the area closer to the chest wall of a subject. when picking up the image, the solid-state detector is moved to a place close to the side wall of the housing on the chest wall side by the moving means to pick up the image up to the area close to the chest wall, and when reading the image, it is moved to the opposite direction to secure the overrun zone between the side wall of the housing and end of the solid-state detector on the subject side. By completing acceleration or deceleration of the reading light exposure section within this zone, the scanning rate of the reading light exposure section is maintained constant across the entire region of the solid-state detector.

Abstract: A solid state radiation detector 20 is formed by stacking a first electrode layer 21, a recording photoconductive layer 22, a charge transfer layer 23, a reading photoconductive layer 24, and a second electrode layer 26 having a stripe electrode 26 consisting of main elements 26a, in the recited order. A large number of secondary elements 27a, for outputting an electrical signal which has a level proportional to a quantity of latent image charge stored in a charge storage portion 29 formed in the interface between the recording photoconductive layer 22 and the charge transfer layer 23, are provided so that the main and secondary elements are alternately arranged in parallel to one another.

Abstract: A line light source system includes a line light source formed by a number of linearly arranged light emitting elements. A pair of cylindrical lenses converges the light bundles emitted from the respective light emitting elements in a direction perpendicular to the direction in which the light emitting elements are arranged, and a pinhole array limits the angle of divergence of the light bundles emitted from the respective light emitting elements with respect to the optical axis of the cylindrical lenses in a direction parallel to the direction in which the light emitting elements are arranged.

Abstract: The frequency of light source malfunctions is reduced and inconsistencies in exposure are controlled in a readout exposure apparatus for reading out radiation image data recorded as an electrostatic image on an image detecting device. The readout exposure device includes a light source having a plurality of LED chips, a first optical element for improving the quality of the light output, and a second optical element for focusing the light passing through the first optical element on the face of the image detecting device through two cylindrical lenses. The light output from each LED chip is focused in the direction perpendicular to the lengthwise direction of the light source. By irradiation of the image detecting device by the light not focused along the lengthwise direction of the light source, a plurality of pixels are simultaneously exposed by the light emitted from each light emitting point.

Abstract: In an electrostatic recorder including: a first electrode for transmitting radioactive rays; a recording photoconductive layer irradiated with the radioactive rays to generate charge; a charge transportation layer; a storage unit for storing the charge as an electrostatic latent image; a reading photoconductive layer irradiated with a reading light to generate charge; and a second electrode, the first electrode, the recording photoconductive layer, the charge transportation layer, the storage unit, the reading photoconductive layer, and the second electrode are laminated in this sequential order. The electrostatic recorder further includes a suppression layer provided between the reading photoconductive layer and the second electrode to prevent interfacial crystallization generated in the reading photoconductive layer. In the electrostatic recorder, the interfacial crystallization of the reading photoconductive layer is prevented without reducing reading efficiency.

Abstract: It is an object of the invention to improve the quality of images obtained by an X-ray detector. A charge transport layer 13 mainly consisted of diantimony trisulfide, an X-ray detection layer 14 mainly consisted of amorphous selenium and a second electrode film 15 are formed in the same order on the surface of a first electrode film 12 provided on a substrate 11. A voltage whose polarity is positive at the first electrode film 12 and negative at the second electrode film 15 is applied, and the surface of the second electrode film 15 is irradiated with an X-ray. Then, carriers generated in the X-ray detection layer 14 are collected by the first and second electrode films.

Abstract: An image recording medium includes a support body which allows reading electromagnetic waves to pass through it, a first electrode layer which allows the reading electromagnetic waves to pass through it, a photoconductive reading layer which exhibits conductivity when irradiated with the reading electromagnetic waves, a charge storage portion for storing a latent-image polarity charge, a photoconductive recording layer for generating the latent-image polarity charge when irradiated with recording electromagnetic waves, and a second electrode layer which allows the recording electromagnetic waves to pass through it. The difference in thermal expansion coefficient between the support body and the photoconductive reading layer is small so that no structural destruction occurs between the support body and the photoconductive reading layer because of thermal stress generated by a temperature change in environment.

Abstract: A planar image detector records image information as an electrostatic latent image and generates electric currents in accordance with the latent image when the image detector is scanned with a reading electromagnetic wave. A pre-exposure light source section irradiates an electromagnetic wave to an entire area of the image detector before the recording of the latent image. A reading exposure light source section located between the image detector and the pre-exposure light source section produces the reading electromagnetic wave and scans the image detector with the reading electromagnetic wave. Current detector detects the currents flowing out of the image detector in accordance with the latent image when the image detector is scanned with the reading electromagnetic wave. All of the elements described above are accommodated within a single same case housing.

Abstract: An image reading method and apparatus for reading an image signal by exposure to reading light L2 from a radiation solid-state detector, where radiation image information is recorded by exposure to recording light L1, suppresses degradation of image quality such as the S/N ratio of a reproduced image, the degradation being caused by an effect of charges which are produced by exposure to excessive radiation or the like and remains in the radiation solid-state detector. In the image reading method and apparatus, a past image signal read regarding past image information recorded in the radiation solid-state detector in the past, and an elapsed time from a time of recording the past image information in the radiation solid-state detector to a time of recording the current radiation image information are stored. The current image signal is then corrected based on the recorded past image information and the elapsed time.

Abstract: A solid-state detector is accommodated within a case housing. The solid-state detector is provided with a layer containing amorphous selenium as a principal constituent and operates such that the solid-state detector records image information as an electrostatic latent image, and such that the solid-state detector generates electric currents in accordance with the electrostatic latent image when the solid-state detector is scanned with reading light. A heat discharging device discharges heat within the case housing to the exterior of the case housing, such that a temperature of the layer containing the amorphous selenium as the principal constituent is kept at a temperature lower than 40° C.

Abstract: In a radiation image reading method for reading image signals corresponding to radiation image information from a radiation solid-state detector in which the radiation image information is recorded by irradiation of a recording electromagnetic wave, correction of an offset and a gain in the image signals, which are attributable to a dark current of the radiation solid-state detector, is performed more accurately and easily. A correction pixel region, in which a light-shielding member 6 is provided so as to be adjacent to respective read pixels, and a correcting means 25 corrects an image signal corresponding to the read pixel based on a correction region signal corresponding to the correction pixel region adjacent to the read pixel.

Abstract: An electrostatic recording medium having a support body on which line-shaped electrodes are formed, and on which a blocking layer formed of a thin film is provided, and the deterioration of the blocking performance of the blocking layer is prevented. After an electrode layer, composed of a layer of film, is formed on the support body, etching is performed and stripe electrodes are formed. The member on which the line-shaped electrodes have been formed is dipped along its lengthwise direction into and pulled up and out of a vessel filled with blocking layer forming liquid to form the film of the blocking layer. In this way, a continuous blocking layer is formed so as to cover the top and side surfaces continuously of each electrode, whereby dark current flow from the stripe electrodes can be prevented with certainty.

Abstract: The reading side conductive layer of a solid sensor is provided with a photo-charged pair generating electrode formed by a plurality of linear electrodes and a photo-charged pair non-generating electrode formed by a plurality of linear electrodes arranged alternately with the linear electrodes of the photo-charged pair generating electrode. The linear electrodes of the photo-charged pair generating electrode are connected to a read-out apparatus, which reads out the latent image charge. The linear electrodes of the photo-charged pair generating electrode forming one pixel are provided with a bypass connection which, when a part of the linear electrodes is broken, allows outputs of the part of the broken linear electrode on the side of the broken part remote from the read-out apparatus to be detected by the read-out apparatus bypassing the broken part of the linear electrode.

Abstract: In an image detector having alternately-aligned linear electrodes for a stripe electrode and linear sub-electrodes for a sub-electrode, short circuiting between the stripe electrode and the sub-electrode is prevented. An insulator layer having transparency to reading light is used outside a second electrode layer in which elements of the stripe electrode are aligned. Elements of the sub-electrode are placed alternately with the elements of the stripe electrode, outside the insulator layer. Thickness of the insulator layer is set as thin as possible to a degree not to cause short circuit between the elements of the two electrodes.

Abstract: An image recording medium includes a support body which allows reading electromagnetic waves to pass through it, a first electrode layer which allows the reading electromagnetic waves to pass through it, a photoconductive reading layer which exhibits conductivity when irradiated with the reading electromagnetic waves, a charge storage portion for storing a latent-image polarity charge, a photoconductive recording layer for generating the latent-image polarity charge when irradiated with recording electromagnetic waves, and a second electrode layer which allows the recording electromagnetic waves to pass through it. The difference in thermal expansion coefficient between the support body and the photoconductive reading layer is small so that no structural destruction occurs between the support body and the photoconductive reading layer because of thermal stress generated by a temperature change in environment.

Abstract: In the charge storing section 19, which is the boundary between a photoconductive layer for recording 12 and a charge transporting layer 13, of a detector 10 with which a first electrode layer 11, a photoconductive layer for recording 12 which exhibits a conductivity when irradiated with recording light L1, a charge transporting layer 13, a photoconductive layer for reading 14, and a stripe electrode 16, are stacked together, and square microplates 18 having roughly the same size as the pixel pitch are discretely disposed just above the elements 16a of the stripe electrode 16 so that each of them corresponds to the pixel. In this way, the pixel locations are fixed at the locations where the microplates 18 are disposed, which makes it easy to compensate for the structure noise, allows the latent image charges stored around the microplates 18 to be sufficiently discharged, and improves the reading efficiency.

Abstract: A solid state radiation detector provided with sub-stripe electrodes, which is capable of reading out stored charges efficiently. A first conductive layer, a recording photoconductive layer, a charge transport layer, a reading photoconductive layer, a second conductive layer provided with stripe electrodes composed of a large number of linear elements and sub-stripe electrodes composed of a large number of linear elements, an insulating layer, and a support body are arranged in accordance with the order listed above, light-shielding films are provided on portions on the support body, which correspond to the sub-stripe electrodes and the spaces between the stripe electrodes and the sub-stripe electrodes, and thus a solid state radiation detector is constituted. In this case, when a pair of the stripe electrode and the sub-strip electrode is defined as one cycle, the cycle is set to range from 10 &mgr;m through 150 &mgr;m.