Abstract: A 3D scanning apparatus configured to image a physical entity comprises a radiation projector for projecting a plurality of radiation stripes onto the physical entity, a detector for detecting striped radiation received from the physical entity; and a data storage device for storing the received radiation as a pixellated bitmap image, the apparatus characterised in that the physical entity, the radiation projector and the detector are geometrically arranged to constrain the number of times that each received stripe is permitted to occur in a given pixel row of the bitmap, the geometrica) constraint determining a stored occlusion classification comprising a plurality of types of occlusions and the apparatus additionally comprising an occlusion type processing means configured to utilise the classification for detecting the various types of occlusions in said received image data.

Abstract: In a device for providing challenge-response pairs a radiation detection element, a challenge-modifying element and preferably also a light source are arranged on the same side of an imaginary plane, which separates said radiation-detecting element from a radiation scattering element. Hence, generation of a speckle pattern having a desired minimum speckle size is facilitated and a more easily assembled device is provided.

Abstract: A medical image recording apparatus comprising: a recording medium to record an X-ray image transmitted through a subject; and an anti-scattering member for X-rays transmitted through the recording medium or an X-ray absorbing member for the X-rays transmitted through the recording medium, wherein the anti-scattering member or the X-ray absorbing member contains a composite material containing a metal or a compound having a specific gravity of not less than 3 excluding lead or a lead compound; and an X-ray absorptance of the composite material is 30-99.99%.

Abstract: A radiation image detector includes an up-conversion phosphor layer for emitting fluorescence by irradiation with infrared light, a first electrode layer for transmitting the infrared light, the fluorescence and radiation carrying a radiation image, a photoconductive layer for recording, a charge storage portion, a photoconductive layer for readout, and a second electrode layer for transmitting the infrared light and the readout light. Radiation is recorded as latent image charge in the charge storage portion. The electric charge is read out from the charge storage portion by irradiating the photoconductive layer for readout with the readout light from the second electrode layer side. The up-conversion phosphor layer is irradiated with the infrared light from the second electrode layer side and remaining charge in the vicinity of the first electrode layer is erased by fluorescence emitted from the up-conversion phosphor layer by irradiation with the infrared light.

Abstract: A solid-state radiation detector with increased pixel density. The solid-state radiation detector includes multitudes of linear signal wires for detecting recorded image information as image signals, and a signal detection means disposed on an opposing side of the detector substantially orthogonal to the linear signal wires, and connected to the linear signal wires to detect the image signals from the linear signal wires. A connection section of each of the linear signal wires, extending substantially orthogonal to the opposing side, for connection to the signal detection means is disposed such that the distance from the opposing side to each of the connection sections differs with each other.

Abstract: An image detection and readout apparatus constituted by a solid state detector constructed to generate electrical currents according to the electrostatic latent image when scanned by readout light, a surface light source for scanning the solid state radiation detector by the readout light, and a light source control means for controlling the surface light source. The stripe electrode of the solid state detector is divided into two sections at the center in the length direction of the elements of the stripe electrode to form two readout regions in order to reduce the capacitance component between the adjacent elements, as well as the resistance component of the elements. In addition, the light source control means is configured to control the surface light source to cause the scanning to be performed by the surface light source in parallel simultaneously for the readout regions.

Abstract: A radiation image photographing apparatus configured to detect radiation includes a radiation detecting panel configured to convert received radiation into an electrical signal, and a support substrate configured to support the radiation detecting panel. In addition, a housing is configured to contain the radiation detecting panel and the support substrate. A plurality of openings are formed on a side of a surface of the support substrate, with the surface being opposite to a surface of the support substrate configured to support the radiation detecting panel.

Abstract: The present invention provides a method and apparatus for random number generation using a scattering waveguide. The apparatus includes a light source for providing coherent light and a scattering waveguide for receiving the coherent light and providing scattered light. The relative position of the light source and the scattering waveguide are variable. The apparatus also includes a detector for forming at least one random number based on the scattered light.

Abstract: A diagnostic imaging system in an example comprises a high frequency electromagnetic energy source, a detector, a data acquisition system (DAS), and a computer. The high frequency electromagnetic energy source emits a beam of high frequency electromagnetic energy toward an object to be imaged. The detector receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source. The DAS is operably connected to the detector. The computer is operably connected to the DAS and programmed to employ a threshold to trigger a filter operation on a pixel, in a basis material decomposition (BMD) image of a plurality of BMD images, through comparison of an actual noise ratio between a pair of BMD images, of the plurality of BMD images, to a theoretical BMD noise ratio value. The computer operably connected to the DAS is programmed to employ a correlation in noise distribution of the plurality of BMD images to reduce image noise in the plurality of BMD images.

Abstract: A first radiation image storage panel comprises a stimulable phosphor layer, and a transparent protective film, which comprises at least one layer of a water vapor proof film, the water vapor proof film comprising a base material film and a transparent inorganic layer overlaid on the base material film. The transparent protective film is located such that the transparent inorganic layer of the water vapor proof film stands facing the stimulable phosphor layer, and the stimulable phosphor layer is sealed. In a second radiation image storage panel, a protective layer comprises a fundamental inorganic layer and at least one layer of a high-order inorganic layer, which is located on the fundamental inorganic layer, and each high-order inorganic layer is overlaid directly upon an inorganic layer, which is located under each high-order inorganic layer.

Abstract: A monitor is provided for measuring the presence of a small concentration of at least one hazardous material within a vessel. A positron source emits positrons into an annihilation region of the vessel. A plurality of species of positronium are formed from the positrons as they interact with a sample of the ambient environment disposed within the vessel. At least one gamma ray detector is located externally of the vessel for detecting gamma rays generated primarily by the absorption of the species of positronium within the annihilation region. A method is also provided where a source of positrons is arranged to direct positrons into a vessel containing a specimen of gas and a contaminant to form species of positronium. The timing of the application of positrons is sensed along with the annihilation of each of the plurality of species of positronium.

Abstract: A radiation image detector comprises a first electrode layer, a recording photo-conductor layer, a reading charge-transportable photo-conductor layer, and a second electrode layer. The reading charge-transportable photo-conductor layer generates electric charges when being exposed to reading light. When the reading light is not irradiated, the reading charge-transportable photo-conductor layer acts approximately as an insulator with respect to electric charges having a polarity identical with the polarity of electric charges occurring in the first electrode layer and acts approximately as a conductor with respect to electric charges having a polarity opposite to the polarity of the electric charges occurring in the first electrode layer. Radiation image information is recorded as latent image charges at an interface between the recording photo-conductor layer and the reading charge-transportable photo-conductor layer.

Abstract: An embodiment of the present invention comprises: at least one light-emitting portion that emits light; a plurality of light-receiving portions, disposed at intervals in the passing direction of the moving object, that receive and detect light emitted from the light-emitting portion and reflected by the moving object; a holding portion that holds information indicating the passing direction of the moving object corresponding to a change in the detection outputs of the light-receiving portions occurring when the light-receiving portions receive the light reflected by the moving object; and a determination portion that determines the passing of the moving object based on the passing direction of the moving object as held by the holding portion and the detection outputs of the light-receiving portions occurring when the light-receiving portions receive the light reflected by the next moving object.

Abstract: These and other objects of the present invention are achieved by an apparatus and process for evaluating an image-wise exposed storage film positioned about a cylindrically-shaped member and linearly passed a cylindrically-shaped slot for interrogation by a light beam wherein a processing assembly is co-axially disposed within a processing chamber formed by the cylindrically-shaped member and wherein the processing assembly includes a plate member disposed for rotation in a plane perpendicular to the axis of the processing chamber and having a pentaprism and a fluorescence light sensor positioned proximate a contact point of the interrogating light beam with the storage film and further including converting electronics for the thus generated fluorescence light wherein after interrogation, the storage film is immediately restored in the same apparatus for subsequent reuse.

Abstract: An imaging system, methodology, and various applications are provided to facilitate optical imaging performance. The system contains a sensor having one or more receptors and an image transfer medium to scale the sensor and receptors in accordance with resolvable characteristics of the medium, and as defined with certain ratios. A computer, memory, and/or display associated with the sensor provides storage and/or display of information relating to output from the receptors to produce and/or process an image, wherein a plurality of illumination sources can also be utilized in conjunction with the image transfer medium. The image transfer medium can be configured as a k-space filter that correlates receptor size to a diffraction-limited spot associated with the image transfer medium, wherein the receptor size can be unit-mapped within a certain ratio to the size of the diffraction-limited spot.

Abstract: Corrective image data obtained by reading a stimulable phosphor sheet which is uniformly irradiated with a radiation are masked, and added and averaged into reference data. The ratio between the reference data and the corrective image data is generated as sensitivity correcting data. Desired radiation image information is then read from the stimulable phosphor sheet, corrected by the sensitivity correcting data, and outputted to an external image processing apparatus.

Abstract: Structural noise is accurately removed by a radiographic image correcting apparatus. A correction image data set, generated from a reference image data set obtained from a stimulable phosphor sheet onto which radiation has been uniformly irradiated, that includes at least four times the amount of structural noise compared to quantum noise, is recorded in a memory means. A correcting means corrects a radiographic image data set, employing the correction image data set recorded in the memory means.

Abstract: A first radiation image storage panel comprises a stimulable phosphor layer, and a transparent protective film, which comprises at least one layer of a water vapor proof film, the water vapor proof film comprising a base material film and a transparent inorganic layer overlaid on the base material film. The transparent protective film is located such that the transparent inorganic layer of the water vapor proof film stands facing the stimulable phosphor layer, and the stimulable phosphor layer is sealed. In a second radiation image storage panel, a protective layer comprises a fundamental inorganic layer and at least one layer of a high-order inorganic layer, which is located on the fundamental inorganic layer, and each high-order inorganic layer is overlaid directly upon an inorganic layer, which is located under each high-order inorganic layer.

Abstract: An X-ray reading device, for reading out X-ray information stored in a phosphor plate, includes an insertion device into which a cassette in which the phosphor plate is located, can be inserted, and an oblong insertion opening through which the phosphor plate located within the inserted cassette can be conveyed into an inside cavity of the X-ray reading device. In order to guarantee a reliable light seal with a simple closure mechanism which can accommodate different position tolerances and cassette formats, at least one closure mechanism is provided which can be moved in a longitudinal direction of the insertion opening to close at least one second section of the insertion opening.

Abstract: Electric charges, which have been generated in a recording photo-conductor layer having been exposed to radiation, are accumulated at an accumulating section. The accumulated electric charges combine with electric charges, which are generated in a reading photo-conductor layer when the reading photo-conductor layer is exposed to reading light having passed through each of transparent linear electrodes, and an electric current in accordance with a radiation dose flows through each of the transparent linear electrodes. An opaque good electrically-conductive member extends at a middle region of each of the transparent linear electrodes, the middle region being other than an end region extending along a longitudinal direction of each of the transparent linear electrodes.

Abstract: A radiographic image detector includes a first electrode layer, a first photoconductive layer, a second photoconductive layer, and a second electrode layer. The second electrode layer has a first stripe electrode, in which a plurality of first line electrodes are arranged in parallel at predetermined intervals, and a second stripe electrode, in which a plurality of second line electrodes are arranged in parallel between the first line electrodes. The radiographic image detector further includes an insulating member, which is mounted on the side surfaces extending in a longitudinal direction of the second line electrode and on the top surface of the second line electrode continuous to the side surfaces.

Abstract: A method for reading radiation image information in which a cassette is lowered while keeping each short side of the cassette extending vertically, and then inserted into a radiation image reading apparatus which has a cassette loading inlet in its upper surface and the inserted cassette is taken into the apparatus, and next the front base and the back base are disengaged in the apparatus and both are separated, and after the radiation image information is read from the stimulable phosphor sheet of the back base which are separated from the front base, and then the front base and the back base are joined and ejected from the insertion opening of the apparatus. The apparatus height is smaller than in the method in which the stimulable phosphor sheet is pulled downward from the cassette and is read, and the operation of lifting the cassette against the force of gravity up to the height of the upper surface of the apparatus becomes unnecessary at the time of inserting the cassette.

Abstract: An erasure assembly for imaging plates comprised of a cover member and a base member, the cover member in the form of an inverted rectangular tray having a plurality of light sources and reflective sources mounted therein behind a diffuser glass member, the base member, complimentary with the cover member having a support area for the placement of imaging plates on their non-reactive surface, their photo-stimulable surface facing upwardly, the cover member closed upon the base member and there being a control means to activate the light sources for a time sufficient to erase the retained images on the photo-stimulable surface of the image plates.

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: A radiographic image detector to detect radiation applied thereto and obtain radiographic image information, includes: an internal power supply to supply power to drive units at least upon imaging; a communication unit to perform communication with an external device; a connection terminal connectable to a connection unit which performs at least one of charging of the internal power supply and the communication with the external device; a storing unit to store at least one of an image and information; a connection detecting unit to detect whether the connection terminal is connected to the connection unit; a state checking unit to check a state of each unit; and a control unit to control the state checking unit such that the state checking unit checks the state of each unit when the connection detecting unit has detected that the connection unit is connected to the connection terminal or disconnected therefrom.

Abstract: A process for the collection and presentation of an X-ray image stored in a phosphor layer, includes the steps of: collecting information in an area of the phosphor layer and in an area adjacent to, and outside of, the phosphor layer; dividing the information collected into image information and edge information, taking into account a run of the information collected, whereby the image information corresponds to the information collected in the area of the phosphor layer, and the edge information corresponds to the information collected in the area adjacent to, and outside of, the phosphor layer; and presenting the image information.

Abstract: An image recording medium includes a first electrode layer permeable to a recording electromagnetic wave carrying thereon image information, and a recording photoconductive layer which contains a-Se as a major component and becomes conductive upon exposure to the recording electromagnetic wave which are superposed one on another in this order with an inhibition layer for inhibiting interfacial crystallization of the recording photoconductive layer intervening between the first electrode layer and the recording photoconductive layer. The inhibition layer is formed by coating the surface of the recording photoconductive layer with organic polymer by the use of low boiling point solvent.

Abstract: A computed radiography (CR) system for imaging an object is provided. The system includes a radiation source, a storage phosphor screen, an illumination source and a two dimensional imager. The radiation source is configured to irradiate the storage phosphor screen, and the storage phosphor screen is configured to store the radiation energy. The illumination source is configured to illuminate at least a sub-area of the storage phosphor screen to stimulate emission of photons from the storage phosphor screen. The two dimensional (2D) imager is configured to capture a two dimensional image from the storage phosphor screen using the stimulated emission photons. A method of reading a storage phosphor screen is also provided. The method includes illuminating at least a sub-area of the storage phosphor screen using an illumination source to stimulate emission of photons from the storage phosphor screen.

Abstract: A radiation image forming unit has a stimulable phosphor sheet and a case. The stimulable phosphor sheet includes a phosphor layer and a frame covering the four sides of the phosphor layer. The frame has a recess, and a lead sheet for blocking backward scattered rays is replaceably mounted in the recess by a double-sided tape. The radiation image forming unit may be used without the lead sheet. The lead sheet may be replaced with another lead sheet having a different thickness.

Abstract: The process and apparatus introduce a carrier gas into a vacuum evaporation chamber, evaporate a film forming material from a evaporation source and deposit the evaporated film forming material on a substrate in sheet form to form a stimulable phosphor layer, thereby producing a evaporated phosphor sheet having a stimulable phosphor layer formed on the substrate. The stimulable phosphor layer is formed with substantially all areas of the evaporation source except opening for evaporation being masked to block movement of heat toward the substrate. The evaporated phosphor sheet includes the substrate and a CsBr:Eu evaporated stimulable phosphor layer deposited on the substrate. A maximum intensity of instantaneous light emission from the stimulable phosphor layer at 640 nm upon excitation by uv radiation is lower than a maximum intensity of the instantaneous light emission at 440 nm.

Abstract: An x-ray sensor 60 includes a phosphorescent phosphor 601 susceptible to x-ray irradiation 12 for forming an image in the phosphor, the phosphor having a decay period 71 persistent after an irradiation period 75. A photoelectric sensor array 603 is arranged to receive phosphorescent emission from the phosphorescent phosphor 601 corresponding to the image. The photoelectric sensor array is gated off for a gated period 72 during at least some of, or exceeding, the irradiation period 75 to dump output from the photoelectric sensor array means generated during at least some of the irradiation period to reduce the effect of direct x-ray irradiation of the photoelectric sensor array. A signal is at least primarily output from the sensor from persisting phosphorescence from the phosphor during the decay period.

Abstract: A radiation image reading apparatus includes an image reading section for reading a radiation image on a stimulable phosphor sheet by scanning the stimulable phosphor sheet with exciting light in a main scanning direction, and a conveying section having a windable member to hold the stimulable phosphor sheet, a supporting member to support the windable member, and a driving section to move the windable member so as to convey the stimulable phosphor sheet to the image reading section in a sub scanning direction. The apparatus further includes a vibration damping mechanism being in contact with the windable member to damp vibration of the windable member, and a vibration refraining mechanism being in contact with the vibration damping mechanism to refrain vibration of the vibration damping mechanism itself.

Abstract: An x-ray detector includes a detector plate having a multiplicity of detector elements arranged in the X direction and the Y direction, accommodated in a housing. To increase the robustness, the detector plate is accommodated in the housing in a floating manner by using at least one damping element.

Abstract: A radiation image conversion panel is disclosed, comprising on a support a stimulable phosphor layer comprising a stimulable phosphor, wherein the stimulable phosphor layer is layer formed of columnar crystals of a parent component of a stimulable phosphor and further thereon a layer formed of columnar crystals of the parent component and an activator component, wherein the second columnar crystals are formed with (200) orientation through vapor deposition. There is also disclosed a preparation method thereof.

Abstract: An image information readout exposure apparatus includes: a first light source, for performing readout scanning exposure on an image information recording medium, on which image information is recordable as an electrostatic latent image, to read out image information recorded thereon; and a second light source, for performing scanning exposure on the image information recording medium, which is different from the readout scanning exposure performed by the first light source. The first and second light sources include an integrated illuminating portion and means for scanning the illuminating portion. The first and second light sources may be linear light sources. If so, the illuminating portion may include an optical path changing means, for changing an optical path of light emitted from at least one of the first and second light sources, so that a position illuminated by the first light source and a position illuminated by the second light source substantially match.

Abstract: A reading assembly includes a stimulating light beam system having a plurality of laser diodes and a CCD line sensor having a plurality of CCDs. The laser diodes and the CCDs are disposed in a predetermined range of distances from the stimulable phosphor sheet along a main direction in order to cope with a deformation of the stimulable phosphor sheet in the main direction.

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: An image storage screen or panel, suitable for use in applications related with computed radiography comprises, on a support, a binderless needle-shaped stimulable CsBr:Eu phosphor layer, wherein, besides low amounts of a europium activator or dopant in favor of homogeneous distribution of said activator in the CsBr matrix, presence of well-defined amounts of rubidium halide and cesium chloride in said matrix, and, optionally, further presence of alkali metal, alkaline earth metal and/or metal earth salts, and/or, optionally, other metal salts or oxides, provides a remarkable speed increase, without loss in sharpness.

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: Needle-shaped CsBr:Eu2+ storage phosphor crystal particles in form of a cylinder suitable for use in flat storage phosphor panels have been provided, wherein said particles have an average cross-section in the range from 1 ?m up to 30 ?m and an average length, measured along the casing of said cylinder, in the range from 100 ?m up to 1000 ?m.

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 radiographic apparatus includes a radiation irradiating unit for applying radiation; a radiation imaging unit, including a plurality of imagers, for converting the radiation to image data; a determining unit for determining whether noise caused by residual charge is produced, from the distribution of the residual charge in the radiation imaging unit based on the image data; and a controlling unit for changing a driving state of the radiation imaging unit based on the determination result.

Abstract: A plurality of original image signals representing radiation image information, which have been fed out from an image signal input apparatus, are fed into an operation processing device. Predetermined operation processing is performed on the plurality of the received original image signals in the operation processing device to obtain an operation-processed image signal. Also, at least one original image signal, which is among the plurality of the original image signals, is transferred to an image output device. Image outputting is performed with the image output device and in accordance with the one original image signal having been transferred. After the operation-processed image signal has been obtained from the predetermined operation processing, the operation-processed image signal is fed into the image output device, and image outputting is performed with the image output device and in accordance with the received operation-processed image signal.

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: The type information of stimulable phosphor sheets is read from cassettes which store the stimulable phosphor sheets in cassette storage apparatus, and storage position information of the stimulable phosphor sheets is acquired. When subject information is set by ID terminals, a cassette having the type information that matches the subject information is selected from the cassette storage apparatus, and supplied to radiation image capturing apparatus. With respect to a stimulable phosphor sheet on which radiation image information has been recorded, the subject information is set in relation to identification information of the stimulable phosphor sheet.

Abstract: An erasure assembly for imaging plates comprised of a cover member and a base member, the cover member in the form of an inverted rectangular tray having a plurality of light sources and reflective sources mounted therein behind a diffuser glass member, the base member, complimentary with the cover member having a support area for the placement of imaging plates on their non-reactive surface, their photo-stimulable surface facing upwardly, the cover member closed upon the base member and there being a control means to activate the light sources for a time sufficient to erase the retained images on the photo-stimulable surface of the image plates.

Abstract: Apparatus and method for supporting and shaping a photo-stimulable phosphor plate (PSP) during scanning in a CR reader, the apparatus including elements for shaping at least part of a PSP to an arc which is a part cylinder, and which provides a substantially unitary radial distance from a beam deflecting device to a target point of scanning.

Abstract: After bearing members engage in respective recesses defined in engaging members that are fixed to sides of a stimulable phosphor sheet, openings of the recesses are closed by pressers of leaf springs, holding the stimulable phosphor sheet on the bearing members.

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: A scanning apparatus (10) for scanning radiographic media (22) comprises a housing (11) with a scanning stage (12) mounted within the housing. A scanning head is mounted on the scanning stage and the scanning stage is adapted for translational movement along an axis (16). An opening (18) in the housing receives a cassette (20) and radiographic media has a latent image (24) disposed in the cassette. The radiographic media has a ferromagnetic end (26) and the cassette consists of a closed box shape having an upper door (28) and a lower door (30). A first magnet (32) is secured to the upper door and a second magnet (34) is secured to the lower door. The polarity of the first magnet is in the same orientation as the polarity of the second magnet. A magnetic latch (36) is mounted within the scanning apparatus to hold the radiographic media at the ferromagnetic end, and the magnetic latch is mounted so that the polarity of the magnetic latch repels the polarity of the first and second magnets.