Abstract: In an X-ray generating apparatus 101 in which an X-ray tube 102 is anode-grounded to a protruding portion 107c of a container 107, electrical discharge between the X-ray tube 102 and the container 107 is reduced. The container 107 includes the protruding portion 107c in such a way that, in the axial direction Dt, a bent portion 107d is positioned between an anode-side joint portion 128 where the insulating tube 4 and the anode 103 are joined to each other and a cathode-side joint portion 122 where the insulating tube 4 and the cathode 104 are joined to each other.

Abstract: An example imaging device for generating an image is disclosed. The device may include an imaging detector array configured to collect charges during a radiation exposure at the imaging detector array. The device may include a signal generator coupled with the imaging detector array. The signal generator may be configured to generate a detection signal based on the charges collected by the imaging detector array. The device may include an accelerometer configured to generate an acceleration signal indicative of external forces applied to the imaging device. The device may further include a signal processor coupled with the signal generator and the accelerometer. In response to a determination that the acceleration signal is below a predetermined disturbance threshold and the detection signal exceeds a predetermined threshold, the signal processor may be configured to generate the image based on the detection signal.

Abstract: The present disclosure discloses a radiation treatment plan generation method, which is applied to a therapeutic equipment comprising at least two therapeutic heads. The method comprises the steps of: acquiring images of an area of the patient with a tumor; determining a treatment target region including the tumor as a region for being irradiated with a radiation beam upon radiotherapy; obtaining a prescription dose of the treatment target, wherein the prescription dose comprises a parameter of prescription dose value that is a magnitude of a dose received by the tumor; and determining a therapeutic head, a therapeutic approach and a therapeutic drive approach suitable for irradiating the target region, based on the therapeutic target region and the prescription dose thereof.

Abstract: A method is provided for determining corrected acquisition geometries of projection images. The method includes providing a projection image dataset that has a plurality of projection images of an object under examination acquired by an acquisition device in different acquisition geometries. The method further includes determining a provisional acquisition geometry for each of the projection images by a first optimization method by minimizing a first cost function by varying the provisional acquisition geometry, wherein the first cost function is contingent on a plurality of consistency measures determined based on the provisional acquisition geometry for a respective pair of projection images.

Abstract: A radiation imaging apparatus includes: a detection unit configured to detect emitted radiation and output radiation image data; a clock control unit that has an internal clock and is configured to control a timing at which the detection unit is driven, based on time information of the internal clock; and a communication unit configured to transmit and receive data through a network, wherein the communication unit, if a communication traffic of the radiation image data is at a threshold or less, transmits the time information to a control apparatus that is connected through the network, and the clock control unit corrects the time information of the internal clock using time information that is a reply from the control apparatus to the time information.

Abstract: According to one embodiment, a radiation detector includes detection parts detecting radiation directly or in cooperation with a scintillator, a controller reading out a signal charge from each detection part, a memory part storing an upper limit and a lower limit of a normal pixel value in a dark image preliminarily obtained and data about a temperature dependence of the upper and lower limits, and a temperature sensor measuring a temperature of the radiation detector. The controller reads out the signal charge from each detection part in a state of no intended radiation irradiation and images the dark image, acquires a temperature when the dark image measured by the temperature sensor is imaged, extracts the upper and lower limits corresponding to the acquired temperature from the memory part, and inspects a pixel value in the imaged dark image by using the extracted upper limit and the lower limit.

Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1) that radiates continuous X-rays, a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects the continuous X-rays, and a third grating (2) arranged between the detector (5) and the first grating 3. The first grating (3), the second grating (4), and the third grating (2) are arranged so as to satisfy conditions of predetermined formulas.

Abstract: Provided is a radiation irradiation device that can restrict movement of an arm part during device movement without providing a mechanism that becomes a user's obstacle. The radiation irradiation device includes a radiation generation unit that generates radiation; an arm part having one end to which the radiation generation unit is attached; a support member having one end to which the other end of the arm part is connected so as to be rotationally movable; a body part to which the other end of the support member is connected; a leg part that is provided on a bottom surface of the body part and is capable of traveling on a device placement surface; and an arm locking part that restricts the rotational movement of the arm part. The arm locking part is provided inside the arm part.

Abstract: A method of detecting defects in protective clothing items includes positioning a protective clothing item in a scanner; moving the item through scanner while irradiating the item with X-rays; measuring energy of the X-rays that pass through the item using a linear detector as the item is being moved through the scanner; calculating a lead equivalent thickness of each pixel of the item based on the energy; identifying any areas of the item with defects; and displaying an image of the item with the identified areas highlighted. Optionally, a conveyor belt and clamping wheels are used to move the item. Different colors are used to indicate different lead equivalent thickness on the image. Optionally, the method includes dividing the image into separate windows of 10x10 pixels, corresponding to areas of up to 15x15 mm, and calculating arithmetic mean of the lead equivalent thickness for the item and for each area.

Abstract: A position adjustment device for a flat panel detector comprising: a guide that is provided on a surface side of the flat panel detector and can be measured by an optical device; and a fixing member configured to fix the guide to one of a side of the flat panel detector of a position adjustment unit and a side of a support portion for supporting the flat panel detector, the position adjustment unit being provided between the flat panel detector and the support portion.

Abstract: A method for fluoroscopy energizes a radiation source to form a scout image on a detector and processes the scout image to determine and report a radiation field position with respect to a predetermined zone of the detector. The radiation source is energized for fluoroscopic imaging of a subject when the reported radiation field position is fully within the predetermined zone.

Abstract: A system and method for imaging a subject includes a first imaging pulse sequence having gradient blips along an x-direction and a y-direction to acquire calibration image data from multiple slices. The imaging pulse sequence also includes a plurality of Z-shimming gradient blips coincident in time with the gradient blips along the x- and y-directions and varied within each slice. A plurality of calibration images are reconstructed from the calibration image data and a comparison image is formed by selecting an image from the calibration images corresponding to at least one of the varied Z-shimming gradient blips for each slice to determine a desired value of the Z-shimming gradient blips. The desired values are used to perform a second pulse sequence to acquire clinical image data from the subject. The second pulse sequence is used to acquire clinical images having been compensated for magnetic susceptibility variations within the subject.

Abstract: An imaging method is provided. In an example, the imaging method includes a first X-ray image including a ROI of a subject is taken by an image capturing device, a position of the ROI in the first X-ray image is determined, a moving distance and a moving direction for a positioning system is determined based on the position of the ROI in the first X-ray image, and the positioning system is capable of being moved to adjust a positional relationship between the image capturing device and the subject, the positioning system is moved based on the moving distance and the moving direction, and a second X-ray image including the ROI is taken by the image capturing device, and the ROI is located in a center position of the second X-ray image.

Abstract: A control unit corrects a lag component, which is included in offset image data in a state in which radiation is not emitted for a period from the end of a first imaging operation of generating second radiographic image data in a state in which the radiation is emitted and to the start of a second imaging operation of generating the second radiographic image data in the state in which the radiation is emitted and at each of a plurality of different times elapsed since the first imaging operation, on the basis of a combination of the correction image data and the time elapsed since the first imaging operation, lag component time change information, and a time from the end of the first imaging operation to the start of the second imaging operation, and corrects the second radiographic image data using the corrected offset image data.

Abstract: A radiation imaging apparatus is provided. The apparatus comprises an image capturing unit and a signal processing unit. The image capturing unit includes a plurality of pixels each including a conversion unit configured to convert radiation into electric charge and a holding unit configured to hold a signal corresponding to electric charge of the conversion unit. The holding unit holds a first signal corresponding to electric charge generated by the conversion unit by one image capturing operation without irradiation with radiation. The signal processing unit generates correction image data based on the plurality of first signals nondestructively read out from the holding unit over a plurality of times while the holding unit holds the first signals, and corrects radiation image data captured by the image capturing unit during irradiation with radiation by using the correction image data.

Abstract: A radiographic imaging apparatus includes a pixel, a readout unit, and a signal processing unit. The pixel includes a switch configured to connect a conversion element configured to convert radiation into an electric signal to a signal line. The readout unit is configured to perform a first operation of reading out a first signal appearing in the signal line when the switch is not in a conductive state and a second operation of reading out a second signal appearing in the signal line when the switch is in a conductive state. The read out unit is configured to perform the first operation before performing the second operation a plurality of times consecutively. The signal processing unit is configured to perform signal processing for outputting information indicating irradiation of the radiographic imaging apparatus by the radiation based on the first signal and the second signal.

Abstract: [PROBLEM TO BE SOLVED] To provide a radiation phase contrast imaging device having a small device configuration [SOLVING MEANS] The present invention focused on the findings that the distance between the phase grating 5 and the FPD 4 does not need to be the Talbot distance. The distance between the phase grating 5 and the FPD 4 can be more freely set. However, a self-image cannot be detected unless the self-image is sufficiently magnified with respect to the phase grating 5. The degree on how much the self-image is magnified on the FPD 4 with respect to the original phase grating 5 is determined by a magnification ratio X2/X1. Therefore, in the present invention, the magnification ratio is set to be the same as the magnification ratio in a conventional configuration. With this, even if the distance X2 between the radiation source 3 and the FPD 4 is reduced, a situation in which the self-image cannot be detected by the FPD 4 due to the excessively small size thereof does not occur.

Abstract: A method and apparatus for optimizing a blocking grating for cone beam CT image scattering correction, wherein the method comprises: scanning a blocking grating to establish a swinging model thereof; setting initial coordinates of the blocking grating along a longitudinal direction of a detector in an initial projection, and establishing an objective function between CBCT image data missing voxel values and the coordinates of the blocking grating along the longitudinal direction of the detector according to the swinging model; minimizing the objective function with a mesh-adaptive direct search algorithm to generate optimized coordinates of the blocking grating along the longitudinal direction of the detector.

Abstract: A method of communicating between imaging components of an X-ray imaging system may include determining, by an initiator imaging component, whether a target imaging component is a primary manufacturer imaging component (PMIC). Responsive to the target imaging component not being the PMIC, the method may include generating a communication message including a communication packet according to a packet protocol. Responsive to the target imaging component not being the PMIC, the method may also include sending the communication message to the target imaging component as a secondary manufacturer imaging component. Responsive to the target imaging component being the PMIC, the method may include generating a message including a header packet and one or more data packets according to a message protocol. Responsive to the target imaging component being the PMIC, the method may also include sending the message to the target imaging component as the primary manufacturer imaging component.

Abstract: To compensate for artifacts in a visual display, a detector is provided having a first sensor element (2a, 2a?, 2a?, 2a??) including a plurality of first pixel elements (7a, 8a) arranged linearly one behind another, and a second sensor element (2b, 2b?, 2b?, 2b??) having a plurality of second pixel elements (7b, 8b) arranged linearly one behind another. Edge pixel elements (8a, 8b), which are arranged linearly one behind another and in line with the first and second central pixel elements (7a, 7b), are provided in a gap between the closest-together first and second central pixel elements (7a, 7b) of the first and second sensor elements (2a, 2a?, 2a?, 2a??, 2b, 2b?, 2b?, 2b??) arranged next to one another. The edge pixel elements (8a, 8b) have a width that is less than first and second widths of the respective first and second central pixel elements (7a, 7b).

Abstract: A system and method for generating a phase contrast image based on an absorption contrast image are provided. The method may include obtaining an absorption contrast image of a first object. The method may further include obtaining a phase contrast image generation model, wherein the phase contrast image generation model may be associated with at least one sample absorption contrast image and at least one sample phase contrast image of a second object. The method may further include executing the phase contrast image generation model to generate a phase contrast image of the first object based on the absorption contrast image of the first object.

Abstract: A radiographic system including a radiation source emitting a radiation beam, a radiation sensor for detecting incident radiation from the radiation beam on a sensor area, at least one collimator arranged between the radiation source and the radiation sensor for masking the radiation beam to irradiate a radiation area on the sensor which is smaller than the sensor area and means for moving the collimator across the radiation beam, whereby the radiation area is moved across the sensor area.

Abstract: A dynamic analysis apparatus includes: an obtainment unit configured to set a region of interest in dynamic images obtained by photographing a dynamic state by irradiation of a check target part with radial rays, and obtain movement information on movement of the region of interest; a determination unit configured to determine an emphasis level of a pixel signal value of an attentional pixel corresponding to a pixel in the region of interest on the basis of the movement information of the region of interest obtained by the obtainment unit; and a correction unit configured to correct the pixel signal value of the attentional pixel of the dynamic images or analysis result images generated by analyzing the dynamic images, on the basis of the emphasis level determined by the determination unit.

Abstract: A method and a system for using tomosynthesis projection images of a patient's breast to reconstruct slice tomosynthesis images such that anatomical structures that appear superimposed in a mammogram are at conforming locations in the reconstructed images.

Abstract: One or more projection apparatuses, control methods for one or more projection apparatuses, and storage mediums for use therewith are provided herein. At least one projection apparatus includes: a projection unit including an optical unit, the projection unit being configured to project a projection image including a predetermined display item onto a projection surface; a sensor configured to sense a predetermined area corresponding to the predetermined display item on the projection surface; and a control unit configured to: (i) perform predetermined processing relating to the projection image in response to the sensor detecting a predetermined instruction in the predetermined area, and (ii) stop sensing performed by the sensor in a case where a state of the optical system of the projection unit changes while the projection image including the predetermined display item is being projected.

Abstract: The present invention relates to an apparatus (10) for imaging an object. It is described to position (210) an X-ray detector relative to at least one X-ray source such that at least a part of a region between the at least one X-ray source and the X-ray detector is an examination region for accommodating an object. In a first mode of operation, with the at least one X-ray source a first focal spot is produced (220), such that at least some first X-rays produced at the first focal spot pass through a first grating of an interferometer arrangement, the first grating positioned at a first position, and such that the at least some first X-rays pass through a second grating of the interferometer arrangement, the second grating positioned at a second position. In the first mode of operation, the at least some first X-rays are detected (230) with the X-ray detector at a detector position.

Abstract: A method and apparatus for reconstructing an incident energy spectrum for a detector are disclosed. In this method, an object to be inspected is illuminated with rays, and then rays transmitted through the object to be inspected are received by the detector to convert the received rays into data of a detected energy spectrum. The incident energy spectrum for the detector is reconstructed based on the data of the energy spectrum using a statistical iterative algorithm with a pre-established detector response function. With the above solution of the embodiments, the incident energy spectrum for the detector can be more accurately acquired, thereby reducing a distortion of the incident energy spectrum caused by the detector.

Abstract: Provided is an X-ray tube capable of obtaining a clear X-ray image by reducing unnecessary X-rays radiated from a holder shaft. The X-ray tube includes an electron source 12 for generating an electron beam B, an anode 13 for accelerating the electron beam B and having a hole 13a allowing the electron beam B to pass through, a cylindrical holder shaft 14 forming a passage for allowing the electron beam B to pass through a hole 13a of the anode 13, a magnetic lens 17 arranged around the holder shaft 14 and configured to converge the electron beam B, a target holder 15 connected to the holder shaft 14, a target 16 arranged in the target holder 15 so that the electron beam B collides with the target 16, and an irradiation window 15b arranged in the target holder 15 and configured to extract X-rays generated from the target 15 to the outside. The inner wall of the holder shaft 14 is made of a carbon material to reduce X-rays generated when the electron beam B hits the holder shaft 14.

Abstract: The method of producing this diffraction grating includes a step of generating a moire by a periodic pattern projected onto a plurality of unit diffraction gratings and a plurality of unit diffraction gratings, and a step of adjusting so that the extending directions of the gratings are aligned by relatively rotating at least one of a plurality of unit diffractions with respect to at least one of the others of the plurality of unit diffractions.

Abstract: A digital radiographic detector system includes a number of DR detectors enclosed by a housing. A base section with wheels has attached thereto a vertical column with a height adjustable horizontal arm extending therefrom. The housing with DR detectors therein is attached to a distal end of the horizontal arm. The housing comprises a major surface made from a radiolucent material to allow the detectors to capture radiographic images via x-rays transmitted through the major surface of the housing. The housing is configured to support the plurality of DR detectors therewithin.

Abstract: The disclosure provides a system including an augmented reality device communicatively coupled to an imaging system of an ophthalmic microscope. The augmented reality device may include a lens configured to project a digital image, a gaze control configured to detect a focus of an eye of an operator, and a dimming system communicatively coupled to the gaze control and the outer surface and including a processor that receives a digital image from the imaging system, projects the digital image on the lens, receives a signal from the gaze control regarding the focus of the eye of the operator, and transitions the outer surface of the augmented reality device between at least partially transparent to opaque based on the received signal. The disclosure further includes a method of performing ophthalmic surgery using an augmented reality device and a non-transitory computer readable medium able to perform augmented reality functions.

Abstract: A radiography system includes a radiography apparatus including first and second radiation detectors and, in a case in which a value corresponding to at least one of a first electric signal or a second electric signal is less than a threshold value, a console derives second imaging conditions using at least one of the first electric signal or the second electric signal, the first electric signal being a signal obtained by converting charge generated in the pixels of the first radiation detector under first imaging conditions, and having a level that increases as an amount of charge increases, the second electric signal being a signal obtained by converting charge generated in the pixels of the second radiation detector under the first imaging conditions, and having a level that increases as an amount of charge increases.

Abstract: A radiographic image capturing system includes the following. A capturing stand includes a holder to hold radiographic image capturing devices. A radiation irradiator irradiates the radiographic image capturing devices loaded in the holder at once. An image processor generates a plurality of images based on image data acquired by the radiographic image capturing devices. The image processor removes a streaky component residing in the generated image to correct the image. Such process includes forming a smoothed image by smoothing with a low-pass filter, and subtracting an interpolation image to extract a streaky image from the smoothing image and adding the streaky image to remove the streaky component. The smoothing includes reflecting smoothing on pixels showing a subject structure using a low-pass filter with a size larger in the horizontal direction compared to pixels other than pixels showing the subject structure.

Abstract: A system, method and program product for enhancing radiographic images. A disclosed method includes: determining a sensitivity function of a computed radiography (CR) plate from at least one blank plate image, wherein the sensitivity function is a measure of noise caused by a phosphor grain pattern in the CR plate; inputting a specimen image captured using the CR plate; generating a blank plate-to-specimen (B2S) alignment map that provides a correspondence between pixel locations in the sensitivity function and the specimen image; applying a sensitivity function correction algorithm to the specimen image based on the B2S alignment map, wherein the sensitivity function correction algorithm is derived from the sensitivity function; and outputting an enhanced specimen image. A second disclosed method includes merging independent images of the same specimen to reduce noise. A third disclosed method includes a deconvolution algorithm for improving spatial resolving power.

Abstract: The invention describes a new Imaging modality based on Linear Velocity Imaging Tomography; its applications include differentiating between malignant and benign tissues, the ability to correlate an ECG trace with actual disorders of the heart and Imaging Brain communications.

Abstract: A workflow assistance system for image guided surgical procedures includes an interventional imaging system. The interventional imaging system operates to move relative to a patient and to acquire interventional images during a surgical procedure. A surveillance system is arranged about a surgical suite and produces surveillance data. A workflow controller processes the surveillance data to identify locations of clinicians, the patient, the interventional imaging system, and medical equipment within the surgical suite and provide operational commands to the interventional imaging system based upon the surveillance data.

Abstract: This invention relates to a medical imaging method comprising: emitting a radiation beam from a radiation source of a rotating gantry, preferably of a rotating C-arm, on a volume of interest, varying collimation of said emitted radiation beam so as to change at least part-time a field of view of said emitted radiation beam so that there are at least a first part and a second part of said volume of interest such that, when said first part of said volume of interest is imaged, said second part of said volume of interest is shuttered, and when said second part of said volume of interest is imaged, said first part of said volume of interest is shuttered.

Abstract: The X-ray imaging apparatus is equipped with an image processing unit for performing a position adjustment of a first dark field image and a second dark field image based on a positional difference amount between a first absorption image of an object and a second absorption image of the object.

Abstract: An x-ray apparatus comprises an x-ray source and an x-ray detector and there between a member that is configured to perturb x-ray photons incident thereon. The apparatus further comprises a first database of values representative of material type and material thicknesses, a second database of scatter radiation values indicative of material type and/or material thicknesses, a processor configured to perform an algorithm which compares the output signal of the x-ray detector with values in the first database and to output a most likely material and/or thickness from the first database; selects from the second database the scatter radiation associated with the material type and/or material thickness; and removes the scatter radiation from an output signal of the x-ray detector.

Abstract: A radiographic image capturing apparatus includes: a two-dimensional array of radiation detecting elements that generate one or more electric charges in proportion to a dose of incident radiation; and a control unit that performs control, at least, to read the electric charges from the radiation detecting elements and generate image data. An image capturing mode is switchable between a controlled mode in which the radiographic image capturing apparatus is under control of an external console and a stand-alone mode in which the radiographic image capturing apparatus autonomously performs image capturing without the control of the console. When the image capturing mode is switched to the controlled mode or the stand-alone mode, the control unit changes its own process so as to meet the switched image capturing mode.

Abstract: Provided is an X-ray imaging apparatus capable of properly performing an automatic exposure control and an appropriately performing X-ray imaging control with a simple configuration. In cases where there exists a plurality of AEC photo pickup fields for automatic exposure, based on the positional information on an X-ray irradiation area and the AEC photo pickup field(s), the presence or absence of AEC photo pickup field(s) where all areas of the sensitive area are not included in the X-ray irradiation area is detected. In cases where there exist one or more AEC photo pickup fields not included in the X-ray irradiation area, the corresponding AEC photo pickup field is set to be unused. As a result, it is possible to appropriately perform an automatic exposure control and/or perform an X-ray imaging control appropriately with a simple structure.

Abstract: An X-ray detector and an X-ray image system using the same are disclosed. The X-ray image system comprises an X-ray generator irradiating X-rays to an object to be photographed; an X-ray detector including a first photoelectric converter receiving X-rays transmitted the object and converting the X-rays in to a first electric signal and a second photoelectric converter converting the X-rays in to a second electric signal; a first image processor processing a first image of the object on the basis of the first electric signal of the X-ray detector; a second image processor processing a second image of the object on the basis of the second electric signal of the X-ray detector; a display module displaying the first and second processed images of the object; and a controller controlling the X-ray generator, the X-ray detector, the first and second image processors and the display module.

Abstract: A system having an X-radiation generator; an X-radiation detector, and a portable computing device. The X-radiation detector has a first wireless communication module, and a non-volatile memory. The X-radiation detector is configured to self-trigger acquisition of an X-radiation image upon detecting X-radiation generated by the X-radiation generator, store the acquired X-radiation image in the non-volatile memory, transmit a lower-resolution version of the X-radiation image via the first wireless communication module, and transmit the X-radiation image to a server via the first wireless communication module. The portable computing device has a second wireless communication module, and a digital screen.

Abstract: A position detection apparatus (100) which detects a position of an object includes a scale (2) including a periodic pattern, a detector (7) configured to be movable relative to the scale, and a signal processor (101) configured to acquire position information of the object based on a first output signal from the detector and perform abnormality determination based on a second output signal from the detector, a spatial frequency response of the first output signal is peaked at a first spatial frequency, and a spatial frequency response of the second output signal is peaked at a second spatial frequency different from the first spatial frequency.

Abstract: A three-dimensional (3D) x-ray tomographic imaging system includes an x-ray source fixedly attached to a first unmanned vehicle, which can be aerial or otherwise configured for locomotion, and an x-ray detector. A vehicle controller is configured to be operated by an operator, and an optical camera is mounted to the first unmanned vehicle at a fixed position relative to the x-ray source, and an optical pattern is fixed at a position relative to the x-ray detector. The x-ray source and x-ray detector are configured to be positioned on substantially opposite sides of the object, while the x-ray source is rotated radially around the object to one or more imaging positions.

Abstract: Disclosed is an X-ray detector having impact resistance and an X-ray imaging apparatus having the X-ray detector. The X-ray imaging apparatus comprises an X-ray source for generating and irradiating X-rays and an X-ray detector for detecting the X-rays irradiated from the X-ray source. The X-ray detector comprises a main body having a bottom plate including a joining groove, a detector panel arranged inside the main body for converting X-rays irradiated from the X-ray source into electric signals, and a middle block arranged inside the main body to support the detector panel. The middle block has a boss configured to protrude toward the bottom plate of the main body. The boss is inserted into the joining groove. A buffer member is arranged in at least part of the joining groove to prevent the boss from coming into contact with the joining groove.

Abstract: A holder (100) included in an X-ray imaging device holds an operation device for wirelessly operating the X-ray imaging device in a removable manner. The holder (100) sets the operation device unremovable when the X-ray imaging device is not in operation, and sets the operation device removable when the X-ray imaging device is in operation. This easily prevents the X-ray imaging device from being brought away.

Abstract: A medical X-ray imaging arrangement includes an X-ray image acquisition device, a movable carriage, and an air-supply for an operating zone. The carriage is movably mountable to a ceiling of an operating room. The X-ray image acquisition device has an X-ray source, and the X-ray image acquisition device is movably mounted to the movable carriage for acquiring image information of an object. Further, the air-supply includes a plurality of air outlets provided on a bottom side of the carriage arranged to provide treated air from an air-feed as a primary laminar downflow defining a carriage laminar flow zone for the operating zone.

Abstract: Disclosed herein is an apparatus comprising: a radiation absorption layer comprising an electrode; a counter configured to register a number of radiation particles absorbed by the radiation absorption layer; a controller configured to start a time delay from a time at which an absolute value of an electrical signal on the electrode equals or exceeds an absolute value of a first threshold; a comparator configured to compare the electrical signal to a second threshold; wherein the controller is configured to activate the comparator during the time delay; wherein the controller is configured to cause the number registered by the counter to change, if the comparator determines that an absolute value of the electrical signal equals or exceeds an absolute value of the second threshold.

Abstract: A radiography system includes: a radiography apparatus including a first radiation detector and a second radiation detector which is provided so on a side of the first radiation detector from which the radiation is transmitted and emitted, and a grid that is configured to remove scattered radiation included in the radiation transmitted through a subject; and an acquisition unit that is configured to acquire, using the grid, a first radiographic image captured by the first radiation detector and a second radiographic image captured by the second radiation detector; and a removal unit that is configured to detect and remove a first grid image, which is an image of the grid, from the first radiographic image acquired by the acquisition unit, and to remove the image of the grid from the second radiographic image acquired by the acquisition unit, using the first grid image.