Abstract: An interferometer for x-rays, in particular hard x-rays, for obtaining quantitative x-ray images from an object, includes: a) an x-ray source, preferably a standard polychromatic x-ray source, b) a diffractive beam splitter grating other than a Bragg crystal, preferably in transmission geometry, c) a position-sensitive detector with spatially modulated detection sensitivity having a number of individual pixels; d) means for recording the images of the detector in a phase-stepping approach; and e) means for evaluating the intensities for each pixel in a series of images in order to identify the characteristic of the object for each individual pixel as an absorption dominated pixel and/or an differential phase contrast dominated pixel and/or an x-ray scattering dominated pixel.

Abstract: An X-ray apparatus includes a converter into which there is integrated a control logic circuit configured to regulate the supply voltage of a high-voltage power supply source of the X-ray apparatus. To this end, the intelligent voltage-voltage, converter is placed between the power battery and the capacitor bank. This intelligent converter is capable of determining the optimum voltage to be delivered to the generator for the radiology examination to be undertaken in regulating the current of the power battery at the necessary level of current.

Abstract: An X-ray inspection device includes a conveying unit, an identification part, and an operation control part. The X-ray inspection device irradiates articles with X-rays while the article is being conveyed, and the article is inspected. The conveying unit is configured and arranged to convey the article. The identification part is configured and arranged to identify whether the article is a test piece or an end product. The operation control part is configured to set operation of the X-ray inspection device to a normal mode in which the article is determined to be defective or not defective when the article has been identified as an end product by the identification part, and to a test mode in which a state of the device is assessed when the article has been identified as a test piece by the identification part.

Abstract: An X-ray CT apparatus with a function of taking in an X-ray image data obtained by another X-ray apparatus, for use of scout view for a CT for local region of an object to be examined. The apparatus comprises an image data input means for taking in an X-ray image data as obtained by an X-ray detector of another X-ray apparatus by way of such as data importing, together with the attribute information thereon, a display operation means for displaying the X-ray image data as a scout view and receiving the operation of designating an interested area on the X-ray image; and a position control means for relatively moving the object to be examined, relative to the X-ray generator and the X-ray detector, in order to execute a CT for local region of the interested area of the object, based on the operation for the X-ray image displayed as the scout view with the display operation means or the attribute information.

Abstract: There are provided an anode target which generates X-rays due to electrons e being incident, an emitter source which emits electrons e to be incident into the anode target, a ring-shaped recoil electron capturing structure which surrounds an orbit of electrons e heading from the emitter source toward the anode target, and captures electrons e emitted from the emitter source and recoiled on the anode target, and a vacuum envelop which keeps at least a periphery of the anode target, the emitter source, and the recoil electron capturing structure at a predetermined degree of vacuum, and the recoil electron capturing structure has a first member formed from strengthened copper which is exposed to the inside of the recoil electron capturing structure, and a second member formed from copper which is disposed at the outside in the radial direction of the first member.

Abstract: Methods and systems for generating bremsstrahlung with enhanced photon flux in a narrow cone at forward angles utilize a thin target of a high-Z material such as gold as radiator, supported on a tube of a low-Z material such as titanium, which tube contains a circulating fluid such as water which acts as a coolant and also may absorb the incident electron beam.

Abstract: An irradiation field limiting device includes a plurality of aperture leaves arranged in a thickness direction, a flexible linear member secured to a thick portion of the aperture leaf, a driver section which drives the linear member a specific amount, and the like. One end of the linear member is secured to an aperture leaf through a connection section tangentially to the outer arc of the aperture leaf, and the other end is connected with a slider provided in a driver section. The slider is connected with a driving source through a connection portion and moves along an axial direction of a drive shaft inserted into a base accompanying rotation of the drive shaft. A load accompanying the movement of the slider is directly transmitted to the linear member, and the aperture leaf is driven a specific amount due to the load.

Abstract: In a device and method for processing and presenting x-ray images, an x-ray image of a subject is acquired with an x-ray acquisition cone simultaneously with the acquisition of an optical exposure of the examination subject with an optical acquisition cone that is congruent with the x-ray acquisition cone. The subject in the optical exposure is subjected to segmentation and/or edge extraction, and the extracted optical exposure and the x-ray image are additively combined so that the subject edges from the optical exposure are inserted into the x-ray image.

Abstract: An X-ray fluorescence spectrometer which includes a calculating device (10) operable to calculate the theoretical intensity of secondary X-rays (6), emanated from each of elements contained in a sample (13), based on the assumed composition and then to successively approximately modify and calculate the assumed composition so that the theoretical intensity and the converted and measured intensity, which have been detected by a detecting device (9) and then converted in a theoretical intensity scale, can match with each other, to thereby calculate the composition of the sample (13). The calculating device (10), when calculating the theoretical intensity, performs a simulation to determine the theoretical intensity of the secondary X-rays (6) for each of optical paths, using the size of the sample (13), and the intensity and the incident angle (?) of primary X-rays (2) impinged upon various areas of the sample surface (13a) as parameters.

Abstract: A method and apparatus including an intraoral dental X-ray electronic sensor facing an x-ray source and connected to a signal processing unit that allows taking and storing multiple x-ray images even without the unit to be connected to database computer. The processing unit has a memory that may be equipped with energy source and the unit is mounted on the sensor holder and can be easily removed from it. The images from the memory can be downloaded into a database using standard serial digital interfaces during or after the image acquisition.

Abstract: A method for scaling a scattered ray intensity distribution in a multi bulbs X-ray CT apparatus configured to irradiate a subject with X-rays from a plurality of X-ray generation sections, respectively and configure a cross-sectional image of the subject by detecting the X-rays passing through the subject. A first difference is achieved, the first difference being the difference between a real data of X-ray intensity achieved by passing of X-rays through the subject, the X-rays being radiated from the plurality of the X-ray generation sections, respectively and an opposed data of X-ray intensity achieved by passing of these X-rays through the subject at the same position in an opposite direction, a second difference between scattered ray intensity included in the real data and scattered ray intensity included in the opposed data being achieved.

Abstract: A radiation conversion panel includes a first pixel group from which electric charges are read after a first energy-level image capturing cycle and after a second energy-level image capturing cycle, and a second pixel group from which electric charges are read after the second energy-level image capturing cycle, wherein pixels of the first pixel group and pixels of the second pixel group are arranged alternately.

Abstract: An HF frequency tuning device includes a resonance cavity in which an HF is introduced, a phase detecting section which generates a sign data representing a sign of a phase difference between a traveling wave and a reflected wave included in the HF in the resonance cavity. The frequency of the HF is repeatedly shifted by a first pitch. The direction of the shift is determined by the sign data for reducing the phase difference. When the sign is inverted, the frequency of the HF is repeatedly shifted to the opposite direction by a second pitch smaller than the first pitch until the sign is inverted again. By this tuning process, the fine tuning of HF can by achieved in a short time.

Abstract: The invention relates to a support structure 1 for mammography, comprising a stand 2 and an arm structure 3 attached thereto. The support structure 1 further comprises a scanner head cover 6 attached to the arm structure 3. The scanner head cover 6 comprises a vertical side portion 6a, and is designed so that a cavity 12 is formed between the vertical surface portion 6a and a vertical part 3b of the arm structure 3, whereby the cavity 12 provides space for an arm of a patient during imaging. A more comfortable posture is provided for a patient.

Abstract: A hand-held, self-contained x-ray fluorescence (XRF) analyzer produces a small x-ray spot on a sample to interrogate the elemental composition of a sample region of millimeter-size characteristic dimension. The analyzer includes a collimator for aiming an x-ray beam toward a desired location on the sample and for determining the size of the spot produced on the sample. The analyzer may include a digital camera oriented toward the portion of the sample that is, or would be, interrogated by the x-ray spot to facilitate aiming the analyzer. The analyzer may generate a reticule in a displayed image to indicate the portion of the sample that is, or would be, illuminated by the x-ray beam. The analyzer may automatically annotate the image of the sample with text or graphics that contain information about the analyzed sample. The image may be stored in the hand -held analyzer or provided for external storage or display.

Abstract: An apparatus for determining fractional amounts of each phase of a multiple phase fluid includes an x-ray generator includes a sample chamber is configured to admit therein a sample of fluid for analysis. The chamber is disposed in a radiation path output from the generator. A filter is disposed in the radiation path between the output of the generator and the radiation input of the sample chamber. A first radiation detector is positioned in a radiation path from the sample chamber after radiation has passed through the sample chamber. A thickness and a material of the filter are selected to optimize resolution of radiation detected by the first detector to changes in volume fraction of oil and water in the fluid sample when a gas fraction thereof is between about 90 to 100 percent.

Abstract: A weight (22) and height (24) of a patient who is to undergo a calcium screening examination in an x-ray diagnostic scanner (10) is used to calculate an appropriate x-ray dose in terms of tube current (mAs) for the calcium screening examination in accordance with the formula: mAs=c(BMI)2, where BMI is a patient's body mass index defined as: BMI=patent weight_(patient height)2.and C is a constant selected in accordance with a target required noise. In this manner, patients can be scanned with a minimum dose necessary to achieve the target noise, e.g., 20 HU. The images can be compared with earlier (and subsequent) images that have the same target noise.

Abstract: An imaging method and apparatus is described in which distances between a source and an object are changed and projection images are generated at each of the different distances.

Abstract: A method includes performing an x-ray focal spot deflection to generate two complete projections from two different channels of an x-ray detector, wherein the channels are purposefully different from each other in some respect other than being different channels.

Abstract: Iso-centering a volume of interest (VOI) (170) within a patient (168) to undergo examination on a rotational X-ray apparatus (100) is achieved by taking two differently-angled pictures (S210) and updating positional settings (172) for the patient's table (112) responsive to respectively displayed centering of the VOI (152). Alternatively, the operator identifies respective VOI centers (S410, S450) for each of the two displayed pictures, and corresponding table movement is automatically calculated (S420).