Abstract: A method for delivering therapeutic radiation to a target includes positioning a multi-aperture collimator on the skin within a trajectory of orthovoltage x-rays directed at the target, thus generating an array of minibeams, each of width between 0.1 mm to 0.6 mm. The skin is irradiated with the array. An effective beam of therapeutic radiation, which may be a solid beam, is delivered to the target at a predetermined tissue depth by merging adjacent orthovoltage x-ray minibeams sufficiently to form the effective beam. The effective beam may be formed proximal to the target. The depth at which the effective, preferably, solid, beam is formed is controlled by varying one or more of the spacing of the minibeams in the array, the minibeam width, the distance from the x-ray source to the collimator, and the x-ray source spot size. Planar minibeams can be arc-scanned while continuously modulating beam shape and intensity.

Abstract: Methodologies, systems, apparatus, and non-transitory computer-readable media are described herein to facilitate acquisition of volumetric data and volumetric image reconstruction. An imaging system can be configured to transport an object at a speed relative to the scan path of an X-ray source such that insufficient measurement data is collected for classically complete geometrical coverage. Iterative image reconstruction techniques may be used to generate volumetric images based on measured volumetric data of at least a portion of the object.

Abstract: According to one embodiment, a radiation diagnostic apparatus includes an X-ray tube, radiation detecting elements, signal processing substrates, and processing circuitry. The signal processing substrates performs processing including at least A/D conversion processing on outputted signals of the radiation detecting elements and outputs processed signals as the outputted signals subjected to the processing. The processing circuitry identifies a non-observing element or a non-observing substrate based on information on an imaging region included in imaging conditions of an object, the non-observing element being a radiation detecting element of the radiation detecting elements which corresponds to a region other than the imaging region, and the non-observing substrate being a signal processing substrate of the signal processing substrates which corresponds to the non-observing element.

Abstract: Systems and methods for breast x-ray tomosynthesis that enhance spatial resolution in the direction in which the breast is flattened for examination. In addition to x-ray data acquisition of 2D projection tomosynthesis images ETp1 over a shorter source trajectory similar to known breast tomosynthesis, supplemental 2D images ETp2 are taken over a longer source trajectory and the two sets of projection images are processed into breast slice images ETr that exhibit enhanced spatial resolution, including in the thickness direction of the breast. Additional features include breast CT of an upright patient's flattened breast, multi-mode tomosynthesis, and shielding the patient from moving equipment.

Abstract: An X-ray system comprises: a source of an X-ray diverging beam having a central imaging portion and a peripheral treatment-portion; a lens transforming the peripheral treatment portion of the X-ray beam into a converging beam directed to a target; a shutter located between the X-ray source and the target in the central imaging portion of the X-ray radiation; and a detector of imaging radiation after interaction with the target and to provide imaging information of the target.

Abstract: A measurement chamber of an x-ray spectrometer for analyzing x-ray fluorescence radiation from a measuring sample has an entrance opening for the entry of x-ray fluorescence radiation into the measurement chamber, a first goniometer arm for holding and adjusting an analyzer crystal, and a second goniometer arm for holding and adjusting an x-ray detector. The measurement chamber and entrance opening are sealed in a vacuum-tight manner by way of a window. The chamber contains a bearing block for receiving and holding both goniometer arms in a concentric and rotatable manner, the arms each being mechanically adjustable by means of a piezo-motor, which is securely connected to the bearing block or a drive plate of the respective goniometer arm. The measurement chamber contains all mechanical components of the goniometer and allows for a more compact, lighter and more stable x-ray spectrometer with a rotatable goniometer and little heat influx into the system.

Abstract: A radiographing system includes a plurality of radiation imaging apparatuses and a composition processing unit which composites a plurality of radiation images acquired from the plurality of radiation imaging apparatuses to generate a long-length image. Each of the radiation imaging apparatuses includes a radiation detecting panel which has a plurality of pixels arrayed in a two-dimensional matrix and converts radiated radiation into an image signal, and a position acquiring unit which acquires positional information by communicating with an external apparatus. A position deciding unit decides an order, in which the plurality of radiation images to be composited by the composition processing unit are composited, based on the positional information acquired by the position acquiring unit.

Abstract: A method, system and computer program product for automatically detecting and quantifying materials in containers (e.g., luggage, storage containers, equipment or componentry for processing or handling). An X-ray radiograph of a container is generated. A set of materials of interest (e.g., plutonium, steel) is selected to determine if the object comprises or contains materials of interest. An estimate of the areal densities or thicknesses of each of the selected materials of interest is obtained by minimizing an objective function with respect to the areal densities or thicknesses for each of the selected materials of interest. Adaptive regularization is implemented in the objective function to improve optimization results by adding a constraint to the objective function, where the constraint penalizes the objective function for solutions that do not line up with a prior belief about the solution form (e.g., the solution should not be negative or especially noisy).

Abstract: A mobile C-arm system contains a main unit having a relocation apparatus for moving the main unit in a horizontal movement direction and a C-arm which is movable at least in the orbital and angular movement direction, a data processing unit having a memory for storing programs which are executed during operation, and a control and display system, connected to the main unit with operating and display elements. A plurality of sensors are provided for capturing at least part of the immediate environment of the C-arm. A control system is present, which is configured to warn against an obstacle in the intended or actual movement direction on the basis of the environment captured by at least one sensor, in dependence on an intended or actual movement of the main unit and/or at least part of the main unit in a movement direction.

Abstract: Disclosed herein are a radiographic imaging apparatus and a method of controlling the radiographic imaging apparatus. The radiographic imaging apparatus may include an imager configured to image a subject to obtain image data; a real-time processor configured to communicate with the imager and configured to obtain a real-time processing authority and perform real-time image processing on the image data; and a non-real-time processor configured to communicate with the imager and configured to perform non-real-time image processing on the image data, and in response to a failure occurring in the real-time processor, obtain the real-time processing authority and perform the real-time image processing on the image data.

Abstract: A control device includes: a radiation source controller that is configured to control a radiation source such that, by moving the radiation source, an incident angle of radiation with respect to a detection face of a radiation detector is plural angles including a first angle where an incident direction of radiation with respect to the detection face is a direction of a normal line to the detection face, and plural second angles different from the first angle; and an imaging controller that is configured to effect control of performing radiographic imaging plural times at a position of the radiation source where the incident angle is the first angle, and performing radiographic imaging a number of times that is less than the plural times at each position of the radiation source where the incident angle is one of the second angles.

Abstract: An X-ray photography device capable of readily photographing by switching to various photography modes such as a standing mode, a table mode and the like with one X-ray photography device is disclosed. To this end, the X-ray photographing device comprises: a base frame; a support frame pivotably coupled to one side of the base frame through a hinge shaft and on one side of which an X-ray detector for detecting X-rays irradiated from an X-ray generation device is slidably provided; and an actuator of which one end is rotatably fixed to the base frame and of which the other end is rotatably fixed to the support frame spaced at a predetermined distance from the hinge shaft, and which pivots the support frame around the hinge shaft within a predetermined angle range while moving a driving shaft therein forward and backward by pneumatic or hydraulic pressure supplied from the outside.

Abstract: A radiation imaging apparatus includes a housing including an incident surface of radiation, an imaging panel stored in the housing and including an effective region for detecting radiation incident through the incident surface, a buffer member arranged between the incident surface and the imaging panel, and an electrically conductive member fixed to the buffer member. An edge of the electrically conductive member surrounds an edge of the effective region in a planar view with respect to the incident surface.

Abstract: An X-ray diagnostic apparatus according to an embodiment includes a first imaging system, a second imaging system, and processing circuitry. The first imaging system holds a first X-ray tube and a first X-ray detector in a rotatable manner. The second imaging system holds a second X-ray tube and a second X-ray detector in a rotatable manner, and rotating centers, which are capable to set independently, between the first imaging system and the second imaging system. The processing circuitry makes a rotating center of the first imaging system and the rotating center of the second imaging system substantially equivalent to each other when a rotation imaging program using the first imaging system and the second imaging system is selected.

Abstract: An X-ray system (2) for acquiring an image of an object has an X-ray detector (8), which is segmented into a plurality of neighboring detector tiles. In particular, the image can be a two-dimensional projection image but also a three-dimensional volume of the object reconstructed from a tomosynthesis acquisition. An X-ray detector moving mechanism (18) is adapted for moving the X-ray detector (8) at least between a first X-ray detector position and a second X-ray detector position during operation of the X-ray system. An X-ray source (4), a collimator (22) and the X-ray detector (8) of the X-ray system (2) are adapted for acquiring a plurality of partial X-ray images through the adjacent detector tiles while irradiating the object with X-ray beams from a plurality of tomographic angles ?. The processing unit is adapted for generating a two-dimension image of the object and/or for reconstructing a three-dimensional volume of the object from the acquired partial images.

Abstract: X-ray scanning methods and systems are provided in embodiments of the present inventions. According to one illustrative implementation, an exemplary method may comprise: collecting background data when no X-ray is emitted; collecting air data when X-rays are emitted and there is no object to be scanned in an inspection channel; scanning an object to collect original scanning data; and preprocessing the original scanning data according to the background data and the air data to acquire scanned image data. In some embodiments, when performing an X-ray scanning of a static object, implementations may measure the background data and the air data and process the scanning data, thereby solving noise issues caused by mechanical vibration and thus improving the measurement accuracy.

Abstract: In the present invention, a cathode assembly for an X-ray tube is provided including a cathode cup, a pair of emitters disposed within the cup and each configured to emit an electron beam therefrom and an electrode spaced from the pair of emitters and configured to affect the shape and/or intensity of the electron beams emitted by the pair of emitters. The electrode includes a rod extending across a central aperture defined within the electrode that enables the electrode to grid or focus the electron beam or beams emitted from the emitters using a bias voltage between +10 kV and ?10 kV.

Abstract: A gantry system for use with a computed tomography (CT) imaging system is provided. The gantry system includes a gantry assembly configured to rotate about a rotational axis to collect imaging data from an object. The gantry assembly includes a support rail. A radially inner surface of the support rail includes a canted first portion and an oppositely canted second portion. The gantry system also includes a plurality of roller assemblies rotatably supporting the gantry assembly. Each of the plurality of roller assemblies comprises a first roller sleeve configured to engage the first portion and a second roller sleeve configured to engage the second portion.

Abstract: Among other things, a communication system and technique for transferring information between a stationary unit and a rotating unit of a computed tomography (CT) system is provided. The communication system comprises a transceiver and a contactless data-link comprising at least one physical channel. The transceiver is configured to create at least two logical channels from a single physical channel to provide for transmitting at least two types of information in a single direction and/or to provide for transmitting information bi-directionally. In this manner, an amount of data that can be transmitted over a single physical channel can be increased.

Abstract: According to one embodiment, an X-ray CT apparatus includes an X-ray source, an X-ray detector, processing circuitry, a showing device, an image processing circuit, and a gantry device. The X-ray source irradiates an object with X-rays. The X-ray detector detects X-rays radiated by the X-ray source and passed through the object. The processing circuitry sets an irradiation section, which is a moving section of the X-ray source or the X-ray detector during X-ray irradiation. The showing device displays the irradiation section. The image processing circuit generates an X-ray CT image based on data obtained by the X-ray detector during the X-ray irradiation through the irradiation section. The gantry device is provided with the X-ray source, the X-ray detector, and the showing device.