Abstract: Provided is a radiation therapy apparatus on which quality management is performed. The radiation therapy apparatus includes: a body unit; a gantry coupled to one side of the body unit and formed to be rotatable in at least one direction with regard to the body unit; a radiation irradiating head formed at one side of the gantry to irradiate a radiation; and a level control module formed at one side of the radiation irradiating head to measure a rotation angle of the gantry or the radiation irradiating head, compare the measured rotation angle with a rotation angle indicated by an angle indicator of the radiation therapy apparatus, and correct an error of the angle indicator.

Abstract: In a method, a water equivalent diameter (abbreviated to WED) of a slice plane of an examination volume is received via an interface. In an embodiment, a noise level based on the water equivalent diameter is determined via a computer unit, the noise level being an upper threshold value for the noise of a CT image dataset. Furthermore a reference dose parameter is determined based on the noise level and the water equivalent diameter via the computer unit, the reference dose parameter corresponding to a first x-ray dose, which would be absorbed in the slice plane during a recording of a first CT image dataset of the examination volume upon the noise of the first CT image dataset corresponding to the noise level. Finally, the reference dose parameter is indirectly proportional to a power of the noise level.

Abstract: A radiation image capturing system includes a capturing room and a console. The capturing room includes a bucky apparatus, a radiation irradiating apparatus and a detecting unit. A plurality of portable radiation image capturing apparatuses can be loaded on the bucky apparatus. The radiation irradiating apparatus is able to simultaneously irradiate radiation to the plurality of portable radiation image capturing apparatuses. The console is associated with the capturing room and obtains capturing order information. The console allows the portable radiation image capturing apparatuses to advance to a capturing possible state when the console judges that capturing in the capturing order information is long length capturing. The console allows only one of the portable radiation image capturing apparatuses to advance to the capturing possible state when the console judges that the capturing is not the long length capturing.

Abstract: A radiation therapy apparatus determines a set of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion. During an alignment phase or a treatment phase for a treatment stage of a target by the radiation therapy apparatus, the radiation therapy apparatus performs selects at least a first angle and a second angle from the set of angles for a first rotation of the gantry. The radiation therapy apparatus generates, using an imaging device mounted to the gantry, a first tracking image of the target from the first angle during the first rotation of the gantry. The radiation therapy apparatus generates, using the imaging device, a second tracking image of the target from the second angle during the first rotation of the gantry. The radiation therapy apparatus performs the target tracking based on the first tracking image and the second tracking image.

Abstract: Systems and methods for reducing X-ray scatter during breast imaging, and more specifically during tomosynthesis imaging. In one embodiment, an anti-scatter grid having a plurality of septa may be configured to be positioned relative to an X-ray imaging device such that each septum of the plurality of septa extends along a direction substantially parallel to a coronal plane of a subject during imaging of the subject using the X-ray imaging device. The X-ray imaging device may be operable in a tomosynthesis mode for imaging of a breast of the subject and may include the anti-scatter grid disposed between a breast platform and the X-ray detector. The anti-scatter grid may be configured to move in a direction substantially parallel to a sagittal plane of the subject during tomosynthesis imaging.

Abstract: Imaging guided radiation treatment apparatus and methods are described. A method includes processing a first population of x-ray cone beam projection images to compute therefrom a time sequence of sliding-window tomographic image volumes characterized in that each subsequent member of the time sequence is computed using at least one same x-ray cone beam projection image as used in computing at least one previous member of the time sequence. The method also includes operating an IGRT apparatus to deliver treatment radiation to the target based at least in part on a comparison between at least one of the time sequence of sliding-window tomographic image volumes and a pre-acquired image data set.

Abstract: An image obtaining unit obtaining a plurality of projection images taken by imaging a subject with different radiation source positions. A pixel value projecting unit projects pixel values of the projection images on coordinate positions on a desired slice plane of the subject based on the positional relationship between the radiation source position with which each projection image is taken and the radiation detector, while preserving pixel values of the projection images. A pixel value calculating unit calculates a pixel value at each coordinate position of interest on the slice plane based on a plurality of pixel values of the projection images projected in a predetermined range relative to the coordinate position of interest on the slice plane to thereby generate a tomographic image of the slice plane.

Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.

Abstract: A method of image guided radiation treatment (IGRT) is described. The method may include receiving a pre-acquired image data set of the body part acquired in a reference frame generally independent of a reference frame of an IGRT apparatus, processing a first population of x-ray cone beam projection images to compute therefrom a first tomosynthesis image volume; and operating a radiation treatment head of the IGRT apparatus to deliver treatment radiation to the body part based at least in part on a comparison between the first tomosynthesis image volume a pre-acquired image data set of the body part.

Abstract: A sample handling apparatus/technique/method for a material analyzer, which provides active, variable concentration of a sample, using a measurement marker introduced into the sample, to measurably concentrate an analyte in a liquid (e.g., water) sample. Active, variable concentration allows otherwise lower level analytes to be concentrated in a measurable way. This enables measurements at higher (e.g., concentrated) levels, which can be extrapolated to obtain their lower, original levels based on the concentration level—measured using the introduced marker as a guide. The sample handling apparatus may be used in combination with an optic-enabled x-ray analyzer, the x-ray analyzer including an x-ray engine with an x-ray excitation path and an x-ray detection path, usable during both during the concentration and analyte measurement.

Abstract: A collimator for a radiotherapy apparatus, comprising a block of isolation-attenuating material having a front face forming the leading edge of tie block and at least one main rear face defining the trailing edge of the block, in which the or each rear face is substantially planar in the direction of the depth of the block and non-parallel to the front face. The collimator may form part of a radiotherapy apparatus, and methods of operation of such apparatus are described.

Abstract: Embodiments of methods and apparatus are disclosed that can provide a modular approach to an accessory shell for a portable DR detector that can accessorize features for various applications.

Abstract: A removable self-centring magnetically-clampable food-inspection pipe apparatus comprising: a food-inspection pipe with a through-bore having a tubular pipe body through which the through-bore passes, and a first connector part at each end of the pipe body defining first seating surfaces; and second connector parts which each define second seating surfaces and on which each first connector part is respectively slidably demountably seatable, one of the first and/or second connector parts having at least in part a magnetically-attractable material, and the other of the corresponding first and/or second connector parts having a plurality of magnetic elements equi-angularly spaced about a bore axis of the pipe body, poles of consecutive magnetic elements being opposite to each other, so that, as the food-inspection pipe is introduced laterally to the bore axis, the first and second connector parts slidably engage and self-centre the food-inspection pipe.

Abstract: A device and method for the radioscopic examination of a continuous strip-shaped material of rubber which runs continuously in particular. During the movement, the strip-shaped material is x-rayed by a radioscopic measurer and the entire cross-sectional surface is detected so that foreign bodies or defects present in the material are detected according to their position and orientation. An elimination device removes the previously identified foreign body during the feed movement of the material in that a tool, configured as a punching tool, of the elimination device is moved synchronously with the material.

Abstract: A processing board mounted on a medical diagnostic apparatus, the medical diagnostic apparatus, and a method of controlling the medical diagnostic apparatus are provided. The processing board includes a sensor configured to sense at least one selected from the group consisting of an installation position, an installation direction, and a power consumption of the processing board. The processing board further includes a controller configured to set an identifier (ID) of the processing board based on an output signal of the sensor.

Abstract: An X-ray imaging inspection system for inspecting items comprises an X-ray source 10 extending around an imaging volume 16, and defining a plurality of source points 14 from which X-rays can be directed through the imaging volume. An X-ray detector array 12 also extends around the imaging volume 16 and is arranged to detect X-rays from the source points which have passed through the imaging volume, and to produce output signals dependent on the detected X-rays. A conveyor 20 is arranged to convey the items through the imaging volume 16.

Abstract: Embodiments of the present invention provide a supporting table and an imaging system including the supporting table. Said supporting table comprises: a supporting table body; a bracket provided on the supporting table body to be supported by the supporting table body and configured to bear a target object, wherein the bracket can move to protrude out of the supporting table body; a supporting roller, which can be detachably mounted between the supporting table body and the bracket to support the bracket relative to the supporting table body when the bracket moves. Accordingly, overhanging deformation of the bracket may be a voided or minimized by the support of the supporting roller.

Abstract: In an x-ray imaging method, the acquisition of a signal image is split off into acquisition of two or more subimages or frames. The first subimage may be acquired with an exposure of a low dose followed by a readout cycle. The dose of the exposure for acquiring the first subimage can be chosen such that it is below the default dose for a particular anatomy. The first subimage may be used to calculate or estimate the parameters of exposure for acquiring a second or subsequent images subimage. The estimation may be such that the total dose received by the imager, in acquiring the first and second subimages, achieves an expected target value to provide an image of good quality. The first and second subimages can be combined to form the final image. A detector array supporting automatic exposure control (AEC) includes AEC pixels providing AEC signals. The AEC pixels are independently or individually addressable and/or readable.

Abstract: An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.

Abstract: X ray apparatus includes a sample stage (4) for supporting a sample (6), an X-ray source (2) and an energy dispersive X-ray detector (8). A conical X-ray collimator (10) is provided either between the sample and the X-ray source or between the sample and the energy-dispersive X-ray detector, the conical X-ray collimator including a plurality of truncated cones arranged concentrically around a central axis, the truncated cones having a common apex defining a central measurement spot on the sample.