Abstract: According to one embodiment, the x-ray apparatus includes an x-ray source adapted to emit an x-ray beam and a detector adapted to receive the x-ray beam of the x-ray source. The x-ray source is adapted to be moved in relation to a first portion of the x-ray apparatus and the detector is adapted to be moved in relation to a first portion of the x-ray apparatus. A control unit controls the movement of the x-ray source and detector. The x-ray source and the detector are adapted to rotate in relation to a first portion of the x-ray apparatus. Further, the x-ray beam is directed essentially towards the detector during the movement of the x-ray source and the detector.

Abstract: The invention relates to a method and an imaging system (100) for generating X-ray images. The system (100) comprises at least one X-ray source, preferably an array of X-ray sources (101a-101d), and an X-ray detector (103) with an array of sensitive pixels (103a-103e). A collimator (102) is arranged between the X-ray source and the detector such that two openings (P) of the collimator (102) allow the passage of X-rays towards two neighboring pixels (103a-103e) while the region between said pixels is substantially shielded. This shielding of the usually insensitive regions between pixels reduces unnecessary X-ray exposure. A sufficiently large X-ray intensity can be achieved by using a plurality of small X-ray sources (101a-101d).

Abstract: The background projection data of a background region CT image in the X-ray emission path is calculated. Using measurement projection data and background projection data, the measurement projection data of local regions is calculated. Local region CT images are calculated on the basis of local measurement projection data, and the projection data of a local region CT image in the X-ray emission path is calculated. On the basis of local calculation projection data and local measurement projection data, local CT images are iteratively corrected. When creating background region CT images or calculating background projection data, the cause of calculation accuracy deterioration is eliminated by the use of processing such as smoothing, and without deterioration of CT value accuracy in regions other than the target region, a high-quality CT image is obtained.

Abstract: The disclosure provides a radiographic apparatus that allows suppression of needles radiation exposure to a subject. Specifically, the disclosure includes an X-ray tube, a collimator, and a visible light source. The spread of visible light beams through the collimator opening too largely may not possibly conform to the spread of radiation. Such a situation may occur when the apparatus is provided with the X-ray tube that emits narrow radiation. In order to avoid such a situation, the disclosure sets an upper limit of a degree of opening as an upper limit of a degree of opening of the collimator. With a construction of the disclosure, there is no need to perform further radiography. This achieves the radiographic apparatus that allows suppression of needless radiation exposure to a subject.

Abstract: Provided is an intraoral X-ray imaging apparatus for detecting X-ray outside an oral cavity, including: a frame; an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; and an X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity and which is movably installed so as to adjust a distance to the X-ray irradiator.

Abstract: An assembly for Kratky collimator is provided. The assembly may be used for a small angle x-ray camera or system requiring such filtering. The assembly may include a first block with a first working surface and a second block with a second working surface. The first and second blocks may be aligned with the first working surface pointing an opposite direction of the second working surface and the first working surface being aligned in a common plane with the second working surface. In some implementations, the first block may comprise a crystal material. In some implementations, an extension may of the first block may be configured position a beamstop.

Abstract: A CT apparatus without a gantry. The CT apparatus includes a scanning passage; a stationary X-ray source arranged around the scanning passage and including a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules may be arranged substantially in an L shape, a semicircular shape, a U shape, an arc shape, a parabolic shape, or a curve shape when viewed in a plane intersecting the scanning passage. The invention ensures that the stationary gantry type CT system has a small size, and a high data identification accuracy.

Abstract: User-friendliness of a radiation imaging apparatus configured to reset a sensor array is improved. This invention is a radiation imaging apparatus including a two-dimensional sensor array. This apparatus includes a scan control signal generation circuit which controls the reset operation of the two-dimensional sensor array, a row number register which stores the row number of a line currently subjected to the reset operation at the time of detection of radiation irradiation, a scan control signal generation circuit which controls read operation after the completion of the radiation irradiation, and an image processing circuit which interpolates an image, of the image generated based on the signals read by the read operation, which corresponds to a line corresponding to the row number stored in the row number register, by using images of adjacent lines.

Abstract: An X-ray CT apparatus, which is capable of quickly acquiring information for determining whether further CT imaging is required, is provided. The X-ray CT apparatus according to the embodiment comprises a reconstruction processor, a setting unit, and a controller. The reconstruction processor carries out first reconstruction processing to be carried out at a first image thickness based on detection data to be sequentially acquired by X-ray scanning of the desired site of a subject, and second reconstruction processing to be carried out at a second image thickness based on all detection data acquired by the X-ray scanning. The setting unit sets the first image thickness based on the second image thickness set in advance.

Abstract: Various embodiments relate to a microbeam radiation therapy (microbeam radiosurgery) system, including: a radiation beam source; a collimator with slits, wherein the collimator only passes a radiation beam from the radiation beam source through the slits; a filtering and limiting system; a source shutoff controller connected to the radiation beam source; and a detector configured to detect events requiring the shutdown of the radiation beam source.

Abstract: An X-ray CT apparatus includes an image generating unit, a discrimination unit, a monochromatic X-ray image generating unit, a combined-image generating unit and a display unit. The image generating unit generates a plurality of reference material images corresponding to respective ones of a plurality of reference materials on a basis of pre-reconstruction data of multi-energy obtained by scanning a subject. The discrimination unit discriminates each of a plurality of materials contained in an imaging region of the subject on a basis of the plurality of reference material images. The monochromatic X-ray image generating unit generates a monochromatic X-ray image at energy determined by each of the plurality of discriminated materials. The combined-image generating unit combines a plurality of monochromatic X-ray images corresponding to the plurality of materials and to generate a combined image. The display unit displays the combined image on a display device.

Abstract: Imaging systems having multiple radiation sources, such as x-ray sources, and multiple radiation detectors, such as flat-panel x-ray detectors and/or diagnostic-quality CT detectors, housed within an imaging gantry, for obtaining simultaneous images of an object positioned within a bore of the gantry in multiple imaging planes.

Abstract: A calibration method of a radiation detecting apparatus, a control method of a radiation imaging apparatus and a radiation imaging apparatus are provided. The control method of the radiation imaging apparatus includes performing prior information acquisition by obtaining at least one correction threshold energy, at which a theoretical radiation intensity of at least one threshold energy is measured, and performing radiation image acquisition by obtaining at least one radiation image at the at least one threshold energy using the at least one correction threshold energy.

Abstract: An x-ray tube cathode with magnetic electron beam steering. In one example embodiment, an x-ray tube cathode includes a cathode head and an electron emitter. The cathode head includes electrically conductive and non-magnetic material integrated with magnetic material. The cathode head defines an emitter slot in a portion of electrically conductive and non-magnetic material positioned between two portions of magnetic material. The electron emitter is positioned within the emitter slot. The electron emitter is configured to emit a beam of electrons. The beam of electrons is configured to be both focused by the electrically conductive and non-magnetic material and steered during beam formation by the magnetic material.

Abstract: A radiometric density profile measuring arrangement for determining a density profile of a bulk material located in a container comprising a multitude of radiation sources and a detection unit for detecting radioactive radiation with a scintillator to generate radiation-induced light flashes, a photosensitive element for generating an electrical signal based on said light flashes, and measuring electronics for processing the electrical signal, with the scintillator being embodied in an oblong fashion.

Abstract: A portable X-ray diffraction apparatus is provided which can be held by a person and on which an image of a spot to be measured can be viewed. The portable X-ray diffraction apparatus includes: X-ray irradiation means that irradiates a sample with collimated X-rays; diffracted X-ray detection means that detects a collimated portion of diffracted X-rays among X-rays diffracted from the sample by the irradiation of the X-rays with the X-ray irradiation means; and signal processing means that processes a signal outputted from the diffracted X-ray detection means. An X-ray diffraction method is used which includes: irradiating a sample with collimated continuous-wavelength X-rays; extracting a collimated portion of diffracted X-rays diffracted from the sample irradiated with the X-rays and condensing the extracted collimated portion of the diffracted X-rays; detecting, using an energy dispersive detection element, the condensed diffracted X-rays; and processing a signal detected by the detection element.

Abstract: A radiation detecting apparatus is provided. The radiation detecting apparatus includes a plurality of detector modules arranged in a channel direction, each detector module including a plurality of detecting elements arranged in matrix form in the channel direction and a slice direction, and a heat radiating unit thermally coupled to the detecting elements and provided on an X-ray outgoing side of the detecting elements, a wind blowing unit configured to send wind to the heat radiating units of the detector modules in the slice direction, first wind shielding portions provided on a radiation outgoing side of the heat radiating units and configured to shield the wind in a radiation irradiating direction, and second wind shielding portions provided on a radiation incoming side of the heat radiating units and configured to shield the wind in the radiation irradiating direction.

Abstract: A flexible, durable, sanitary, adhesive-backed sheet is applied to the skin-contacting surfaces of a mammography bucky prior to commencing a mammography procedure, and is removed from the bucky once the procedure is complete, without leaving a residue behind. The sheet is made of a non-woven polymeric material that gives the sheet a fabric-like or cloth feel, and is substantially incompressible in response to forces applied during a mammography procedure. The sheet insulates the patient from the temperature differential between the patient's skin and the bucky surfaces. Additionally, the surface of the sheet is embossed with a texture, markings or raised features to enhance the fabric-like feel.

Abstract: Automatic triggering of an intraoral x-ray sensor used in a dental x-ray imaging system. The intraoral sensor has an array of pixels. The array of pixels has a plurality of lines of pixels, and each of the pixels generates an electrical signal correlated to x-ray radiation that impinges that pixel. An electronic control unit is connected to the intraoral sensor to receive electric signals from the array of pixels. The electronic control unit destructively reads pixel clusters in one or more of the plurality of lines of pixels. The electronic control unit is configured to generate a dose-correlated signal based on the signals from each of the pixel clusters in each of the one or more lines of pixels and initiate capture of an image generated with information from each of the pixels in the array of pixels, when the combined signal exceeds a predetermined threshold.

Abstract: An apparatus and method for acquiring an optimal MEX image may include an X-ray source to generate an X-ray and to irradiate the X-ray, an energy identification detector to acquire a MEX image that is generated when the irradiated X-ray penetrates an object, and an optimal MEX processor to generate an optimal MEX parameter based on a characteristic of the object and to control at least one of the X-ray source and the energy identification detector based on the generated optimal MEX parameter.