Abstract: An apparatus, method and computer program for operating an apparatus. The apparatus comprises: a scintillator and an array of photodetectors; the scintillator configured to be rotatable around the periphery of a computed tomography scanner, the scintillator configured to receive X-rays incident on the scintillator, convert the received X-rays to visible light and transmit the visible light towards a corresponding photodetector of the array of photodetectors; and the array of photodetectors fixed around the periphery of the computed tomography scanner, each of the photodetectors in the array of photodetectors configured to output an electrical signal in response to detecting the visible light received from the scintillator.

Abstract: A back illuminated sensor preferably is included as a collector component of a detector for use in intraoral and extraoral 2D and 3D dental radiography, positron emission tomography (PET) and single-photon emission computed tomography (SPECT). The disclosed imaging method includes one or more intraoral or extraoral emitters for emitting a low-dose gamma ray or x-ray beam through a dental examination area; and one or more intraoral or extraoral detectors for receiving the beam, each detector including a back illuminated sensor. Within the detector, the beam preferably is converted into light and then focused and collected at a photocathode layer without passing through the wiring layer of the back illuminated sensor.

Abstract: A control mechanism for a high-voltage generator that provides voltage and current to an electronic radiation source in a high-temperature environment is provided, the control mechanism including at least an intermediate enveloping ground plane, and a ground-plane potential monitoring system that provides an input to a control processor that in turn drives the high-voltage generator. A method of controlling a high-voltage generator that powers an electronic radiation source is also provided, the method including at least: measuring an enveloping ground plane potential such that a change in the potential of said enveloping ground plane surrounding the generator is monitored and used to determine the beginning of one or more of a partial discharge and flash-over event.

Abstract: Optical geometry calibration devices, systems, and related methods for x-ray imaging are disclosed. An optical-based geometry calibration device is configured to interface with a two-dimensional (2D) imaging device to perform three-dimensional (3D) imaging. The optical-based geometry calibration device includes one or more optical cameras fixed to either an x-ray source or an x-ray detector, one or more markers fixed to the x-ray detector or the x-ray source, with each of the one or more optical cameras being configured to capture at least one photographic image of one or more corresponding optical markers when each x-ray image of the object is captured, and an image processing system configured to compute positions of the x-ray source relative to the x-ray detector for each 2D projection image based on the at least one photographic image of the one or more markers.

Abstract: A method of extracting information encoded in a product includes: determining a concentration of a non-functional amount of a chemical in a product, where the concentration corresponds to one of a plurality of possible concentration ranges, where each of the plurality of possible concentration ranges indicates different non-composition manufacturing information about the product.

Abstract: Example embodiments presented herein are directed towards an electron emitter for an x-ray tube. The electron emitter comprises an electrically conductive substrate and a nanostructure material. The nanostructure material is comprised on at least a portion of the electrically conductive substrate. The nanostructure material is made of oxides, nitrides, silicides, selenides or tellurides. Such an electron emitter may be used for hybrid emission, such as Schottky emission or field emission.

Abstract: An X-ray phase contrast imaging system includes an X-ray source, a detector, a plurality of gratings including a first grating and a second grating, and a grating positional displacement acquisition section configured to obtain a positional displacement of the grating based on a Fourier transform image obtained by Fourier transforming an interference fringe image detected by the detector.

Abstract: A method and system for determining the position of a C-arm of an X-ray system is disclosed. The method includes obtaining a primary X-ray image of a desired location on a patient's body, obtaining a secondary X-ray image of the desired location on the patient's body, adjusting the secondary X-ray image with respect to the primary X-ray image using one or more touch based gestures, determining the subsequent location for X-ray imaging on the patient's body, and positioning the C-arm of the X-ray system to the subsequent location for X-ray imaging on the patient's body.

Abstract: A mammographic imaging system is optimized for use with a single fixed size flat panel digital image receptor. It accommodates compression devices (paddles) of varying sizes, and positions them properly in a field of view of the image receptor. When a compression paddle with size smaller than the field of view of the image receptor is used, the compression paddle can be shifted laterally in the direction parallel to the chest wall, so as to facilitate different views of different size breasts, and permit the image receptor to image as much of the desired tissue as possible. An automatic X-ray collimator restricts the X-ray illumination of the breast in accordance with the compression paddle size and location in the field of view. An anti-scatter grid, mounted inside the image receptor enclosure, just below the top cover of the enclosure, can be retracted out of the field of view of the image receptor for use in magnification imaging.

Abstract: Methods and systems for characterizing dimensions and material properties of semiconductor devices by full beam x-ray scatterometry are described herein. A full beam x-ray scatterometry measurement involves illuminating a sample with an X-ray beam and detecting the intensities of the resulting zero diffraction order and higher diffraction orders simultaneously for one or more angles of incidence relative to the sample. The simultaneous measurement of the direct beam and the scattered orders enables high throughput measurements with improved accuracy. The full beam x-ray scatterometry system includes one or more photon counting detectors with high dynamic range and thick, highly absorptive crystal substrates that absorb the direct beam with minimal parasitic backscattering.

Abstract: At each step of a workflow performed by an operator that involves a plurality of input mechanisms in a radiation therapy system, the operator is assisted in the process of selecting the next input mechanism in a way that greatly reduces the number of possible input mechanisms that can be chosen. A first subset of input mechanisms is made visually prominent via a first visual technique and a second subset of the input mechanisms is made visually prominent via a second visual technique. The first subset includes input mechanisms that are available for selection at that particular step in the workflow and the second subset includes recommended input mechanisms that are the most likely to be the next input mechanism that should be actuated by the operator at that particular step in the workflow.

Abstract: Provided is a mirror device including a mirror which is supported to be flappable around a fast axis and supported to be flappable around a slow axis and in which a resonance frequency of flapping thereof with respect to the fast axis is a first value and a resonance frequency of the flapping thereof with respect to the slow axis is a second value lower than the first value; a signal extracting portion configured to obtain from a slow axis coil a synthesized signal including an induced signal generated in the slow axis coil due to an operation of flapping the mirror around the fast axis and configured to extract the induced signal from the synthesized signal; and a signal generating portion configured to generates a driving signal so that the flapping of the mirror with respect to the fast axis is in a resonance state according to the induced signal.

Abstract: A radiation image capturing system includes a radiation image capturing apparatus, an irradiation apparatus and an image processing apparatus. The image processing apparatus generates a first radiation image of a subject based on a signal value generated by the radiation image capturing apparatus with no grid attached irradiated by the irradiation apparatus; performs a low-pass filter process on a pixel value of the first radiation image using a scattering kernel, thereby generating a low frequency image; estimates a body thickness of the subject based on the signal value; estimates a scattered ray content rate based on the body thickness; calculates a scattered ray component in the first radiation image based on the low frequency image and the scattered ray content rate; and subtracts the scattered ray component from the first radiation image, thereby generating a second radiation image.

Abstract: The present specification discloses a multi-view X-ray inspection system having, in one of several embodiments, a three-view configuration with three X-ray sources. Each X-ray source rotates and is configured to emit a rotating X-ray pencil beam and at least two detector arrays, where each detector array has multiple non-pixellated detectors such that at least a portion of the non-pixellated detectors are oriented toward both the two X-ray sources.

Abstract: The present invention discloses a stationary real-time CT imaging system, comprising an annular photon counting detector, an annular scanning x-ray source, and a scanning sequence controller. Under the control of the scanning sequence controller, the annular scanning x-ray source emits x-ray, and the x-ray penetrates the object being tested and projects onto the corresponding annular photon counting detector. The annular photon counting detector delivers the corresponding exposure information through the main scanning machine and the main controlling unit to a CT main machine and a human-machine interface unit. The image reconstruction is completed in the CT main machine and the human-machine interface unit. By electronically controlling and switching x-ray projection positions in order, the scanning speed is enhanced by tens of times, thereby obtaining dynamic 3D images.

Abstract: An X-ray system includes a multiple degree of freedom robotic arm mounted to a surface of a radiology suite, the robotic arm having one or more telescoping arm members, an X-ray source mounted on an end effector of the multiple degree of freedom robotic arm, at least one X-ray detector, and a work station coupled to the robotic arm, X-ray source, and X-ray detector, wherein the work station is configured to compute robotic arm trajectories for at least one scanning procedure and to control the robotic arm, X-ray source, and X-ray detector to effect the at least one scanning procedure.

Abstract: In one embodiment, a rotating anode type X-ray tube comprises a fixed shaft having a first surface, a rotor, a cathode emitting electrons, and an anode target. The rotor comprises a first cylinder having a second surface, a second cylinder, and a third cylinder. A first threaded portion on an inner surface of the first cylinder and a second threaded portion on an outer peripheral surface of the third cylinder are tightened. A screw member is screwed in a third threaded portion on an inner peripheral surface of a hole which penetrates the third cylinder, and a tip portion of the screw member presses the second cylinder against the second surface.

Abstract: A medical imaging device is disclosed herein. The medical imaging device includes a user interface device for displaying information relevant to an imaging process to a user and/or receiving user input relevant to an imaging process and at least one component controllable according to a user command entered using the user interface device, wherein the user interface device includes at least one pair of mixed reality smart glasses.

Abstract: A vacuum chuck for clamping workpieces, in particular wafers, and a measuring device and a method for checking workpieces by way of X-ray fluorescent radiation. The vacuum chuck has a clamping plate having a support surface, having at least one suction connection arranged on a base body for connecting to a negative-pressure device and for clamping the workpiece on the clamping plate by negative pressure received by the base body and having several suction grooves arranged in the clamping plate and are open towards the support surface. The support surface has concentric suction grooves having a suction opening to which a negative-pressure line is connected or which is connected to a work channel. Each suction groove having a separate negative pressure, which is separate to the adjacent suction groove, is selectively controlled by a control valve by a control for supplying the respective negative pressure in the respective suction groove.

Abstract: A system and method of X-ray imaging includes an X-ray emitter that projects X-rays. An X-ray receiver receives X-rays from the X-ray emitter to produce a plurality of projection images. A filter with at least one filter leaf absorbs at least a portion of the X-rays from the X-ray emitter to define a limited field of view within a full field of view, wherein the X-rays are attenuated in at least one attenuated portion of the full field of view. A processor reconstructs a three dimensional image based upon the projection images of the full field of view. The limited field view is located within the reconstructed three dimensional image. At least one corrective parameter is determined from the reconstructed three dimensional image. A three dimensional image is reconstructed based upon the limited field of view and the at least one corrective parameter.