Abstract: The present disclosure provides a spiral Computed Tomography (CT) device and a three-dimensional image reconstruction method. The spiral CT device includes: an inspection station operable to carry an object to be inspected and defining an inspection space; a rotational supporting apparatus disposed around the inspection space; a plurality of X-ray sources located on the rotational supporting apparatus; and a plurality of X-ray receiving apparatuses located on the rotational supporting apparatus and opposing to the plurality of X-ray sources respectively, wherein the plurality of X-ray sources and the plurality of X-ray receiving apparatuses are rotational synchronously with the rotational supporting apparatus, wherein the plurality of X-ray sources are closely disposed and fan-shaped X-ray beams provided by the plurality of X-ray sources cover the inspection space with a minimum degree of overlapping.

Abstract: A cap for a c-arm medical imaging device with an image intensifier comprises a plate sized and shaped to cover an exterior facing surface of the image intensifier. The plate is transparent to x-rays and has a planar center with a planar outer surface and a planar inner surface to face the image intensifier. A retainer is carried by the plate to retain the plate on the image intensifier.

Abstract: According to one embodiment, an X-ray mammography apparatus includes a breast support, a compression plate, and a compression controller. The breast support where the breast is placed. The compression plate is arranged such that the breast is sandwiched between the breast support and the compression plate. The compression controller is configured to control the breast support to move toward the compression plate so as to compress the breast from below between the breast support and the compression plate.

Abstract: A photon counting X-ray CT apparatus according to an embodiment includes: data acquiring circuitry, and processing circuitry. The data acquiring circuitry is configured to allocate energy measured by signals output from a photon counting detector in response to incidence of X-ray photons to any of a plurality of first energy bins so as to acquire a first data group as count data of each of the first energy bins. The processing circuitry is configured to determine a plurality of second energy bins obtained by grouping the first energy bins in accordance with a decomposition target material that is a material to be decomposed in a imaging region, allocate the first data group to any of the second energy bins so as to generate a second data group, and use the second data group to generate an image representing a distribution of the decomposition target material.

Abstract: Various methods and systems are provided for a mobile x-ray imaging system. In one embodiment, a system includes a gantry with an x-ray source and an x-ray detector mounted thereon opposite each other, a carrier coupled to the gantry and configured to rotate the gantry relative to the carrier, and a robotic arm coupling the carrier to a base, the robotic arm comprising at least three links and four joints.

Abstract: An X-ray CT device and a computing unit to use a projection-based method for image reconstruction are included. The computing unit sets a coordinate space having coordinate axes of the thicknesses of base materials and likelihood the thicknesses, and then based on X-ray attenuation responses, executes: a first search to search in a direction perpendicular to a ridge direction of likelihood contours for a first estimated thickness having the highest likelihood, starting with an estimated thickness input value set in the coordinate space; a second search to search for a second estimated thickness having the highest likelihood, starting with a shifted starting point at a position shifted from the estimated thickness input value; and a third search to search on a line connecting the first estimated thickness with the second estimated thickness for the highest likelihood estimator having the highest likelihood, to obtain an estimated thickness output value.

Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

Abstract: An apparatus for sensing radiation is provided. Certain examples provide an apparatus including: a first layer including a sensor, wherein the sensor is configured to be responsive to changes in an electric field in the vicinity of the sensor; a second layer including a substrate configured to produce charge carriers in response to incident radiation; and a third layer including a plurality of electrodes, wherein the plurality of electrodes are configured to be selectively addressed during a readout operation of the sensor. Certain examples, relate to an apparatus for sensing X-rays or sensing neutrons including a graphene field effect transistor.

Abstract: Various methods and systems are provided for C-arm cable management. In one embodiment, an assembly for a C-arm imaging system comprises a cable guide configured to rotate around a rotational axis arranged at an angle to a surface of a C-shaped portion of the C-arm imaging system to which the assembly mounts, with the cable guide including a rigid elongate portion extending outward from the rotational axis and configured to enclose a portion of a cable of the C-arm imaging system. In this way, the cable guide may maintain the cable of the C-arm imaging system outside of a sterile imaging area of the C-arm imaging system.

Abstract: According to one embodiment, an X-ray computed tomography apparatus includes an X-ray detection element, an A/D convertor, a readout switch, and readout control circuitry. The X-ray detection element outputs an electric signal corresponding to a detected X-ray. The A/D convertor A/D-converts the electric signal. The readout switch switches a connection between the X-ray detection element and the A/D convertor. The readout control circuitry acquires, as offset data, data which is output by the A/D convertor in a state where the readout switch is OFF instead of projection data which is output by the A/D convertor according to the electric signal in a state where the readout switch is ON, in a view during a scan.

Abstract: A mobile radiographic imaging system includes a mobile radiographic imaging apparatus and a radiographic imaging cassette. The radiographic imaging apparatus includes a displacement mechanism that electrically displaces a radiation emission unit and a displacement mechanism controller that controls the operation of the displacement mechanism. The radiographic imaging cassette includes a remote operation unit that is provided in a housing to remotely operate the displacement mechanism and an operation instruction transmission unit that transmits an operation instruction for operating the displacement mechanism to the displacement mechanism controller in a case where the remote operation unit is operated.

Abstract: A radiographic apparatus generates images of objects of interest, such as subject body parts, using radiation. The radiographic apparatus includes a radiation irradiating unit having a plurality of radiation sources, where each of the plurality of radiation sources irradiates the object of interest, a driving unit for moving the radiation irradiating unit, and a radiation detector for detecting the radiation passing through the objects of interest from each of the plurality of radiation sources.

Abstract: An apparatus provides phase contrast X-ray image data of a region of interest of an object. Attenuation X-ray image data of the region of interest of the object is also provided. A first basis data set is generated from the phase contrast X-ray image data. A second basis data set is generated from the phase contrast X-ray image data and the attenuation X-ray image data.

Abstract: A system and method of sample cell arrays for performing small-angle X-ray scattering on solutions containing biomolecules and/or other solutes. The sample cell array includes sample cells having a cylindrical cross-section and side walls that are thin compared with their diameter, and preferably made of a compliant material. The cylindrical cells are attached to top and bottom substrates, each with a high transmittance X-ray window, with their axis perpendicular to the respective substrate. The cells are loaded with buffer and buffer+biomolecule solution from an initially open top end. A top substrate (with a sealing cap and the X-ray window) is pushed down onto the cylindrical cells. On cooling to cryogenic temperatures, the thermal contraction of the sample relative to the sample cells does not cause large stresses to develop in the sample once it solidifies and cause sample cracking.

Abstract: A radiation capturing system includes the following. A radiation source, a plurality of gratings, and a radiation detector, are provided aligned in a radiation irradiating axis direction. A Talbot interferometer or a Talbot-Lau interferometer captures a moire fringe image for generating a reconstructed image. A low visibility capturing unit performs capturing of the moire fringe image with visibility of a moire fringe reduced more than in capturing of the moire fringe image for generating the reconstructed image. A generating unit generates an absorptive image based on the moire fringe image captured by the low visibility capturing unit.

Abstract: An apparatus for creating a radiation treatment plan for execution by a radiation treatment machine, includes: a waypoint module configured to obtain imaging waypoint data representing imaging waypoints, the imaging waypoints at least partially defining one or more positions for obtaining images of a patient during a treatment session; a treatment trajectory module configured to obtain treatment data at least partially defining a beam-on direction; a treatment plan generator configured to create the radiation treatment plan based at least in part on the imaging waypoint data and the treatment data.

Abstract: In a case in which an imaging mode continuously acquiring a plurality of energy subtraction images is performed, a radiation source control unit of a control device performs radiation source control for performing a one-shot imaging operation, in which only one of first radiation and second radiation is emitted, at least once for one two-shot imaging operation in which the first radiation and the second radiation are continuously emitted. In a case in which the imaging mode is performed, a detector control unit performs detector control to direct a radiation detector to output a first radiographic image based on the first radiation and a second radiographic image based on the second radiation.

Abstract: A power consumption rate of a battery is monitored according to time of day and is recorded as a battery power consumption profile associated with a plurality of daily time periods for that battery. Electric circuits connected to the battery are activated during high battery power consumption rate time periods and deactivated during low battery power consumption rate time periods. A stored control program is executable by a processor to control the automatic power downs and power ups.

Abstract: An X-ray generation apparatus includes an electron gun configured to emit an electron beam, a rotary anode unit having a target generating an X-ray by receiving the electron beam and configured to rotate the target, a magnetic lens having a coil configured to generate a magnetic force acting on the electron beam between the electron gun and the target, and a wall portion disposed between the target and the coil so as to face the target. The wall portion is formed with an electron passage hole through which the electron beam passes and a flow path configured to allow a coolant to flow.

Abstract: The effects of acute toxicity from a radiation procedure can be reduced without altering the radiation dose by temporally feathering the radiation procedure. Using temporal feathering, the radiation procedure delivers a total amount of radiation that is weighted amounts of radiation per day. The weighted amounts of radiation can be delivered according to a sequence plan that ensures the total dose of radiation is administered in the time period. The sequence plan includes one day of a high fractional dose of radiation and four days of a low fractional dose of radiation.