52 results about "Computed tomography scanner" patented technology

A processing device for obtaining gap-filler sinogram information is adapted to obtain first sinogram information associated with a first spectral parameter, and second sinogram information associated with a second spectral parameter, and is adapted to obtain the gap-filler sinogram information which is associated with the second spectral parameter and which fills the one gap in the second sinogram information, on the basis of the first sinogram information and the second sinogram information. A computer program, a method, and a computer implementation are also described.

The computed tomography (CT) scanner gantry rotates relative to the fixed substrate of the CT scanner. During gantry rotation, digital data is transmitted from a data source via a modulator, transmission channel, and demodulator to a data receiver between the gantry and the substrate. A predistortion device located upstream of the transmission channel predistorts the transmitted signal generated by the modulator from the data source through modulation according to a predistortion rule. Only the predistorted transmitted signal is transmitted to the transmission channel. Alternatively or additionally, a postdistortion device located downstream of the transmission channel postdistorts the signal transmitted via the transmission channel according to a postdistortion rule, and only the postdistorted signal is transmitted to the demodulator. The predistortion rule and / or postdistortion rule are repeatedly reset by a setting device during gantry rotation.

Detectors for computed tomography scanners may include a cathode, a cadmium telluride material, a cadmium zinc telluride material, or a silicon material adjacent to the cathode, and an array of anodes located on a side of the cadmium telluride material, the cadmium zinc telluride material, or the silicon material opposite the cathode, A substrate may be located proximate to the array of anodes, anodes of the array of anodes electrically connected to the substrate. A microelectronic device may be located on a side of the substrate opposite the cadmium telluride material, the cadmium zinc telluride material or the silicon material. The microelectronic device may be electrically connected to the substrate with the microelectronic device mounted to the substrate in a flip-chip orientation. Electrically conductive elements may be located adjacent to the microelectronic device and electrically connected to the substrate.

A device according to the invention for transmitting data between the rotating part and the stationary part of a computed tomography scanner, comprising a waveguide slotted in the longitudinal axis for transmitting high-bit-rate data signals

1. Name of the Design Product: Computer Tomography Scanner Screen. 2. Use of the Design Product: For operating the page and displaying tomographic scan images. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

Device for transmitting data between a rotor (102) and a stator (103) wherein the rotor (102) has at least one data source (4), and wherein the stator (103) comprises at least one data sink (9) for evaluating the data, wherein at least one transmitter (7) and a waveguide (101) fed by the rotor (102) is provided and the transmitter (7) is designed to receive data from the data source (4) and to convert this data into an electromagnetic signal in the split waveguide (101); wherein at least one receiver (8) is provided on the side of the stator (103) which is designed to receive the electromagnetic signal from the split waveguide (101); wherein the receiver (8) is designed to convert the electromagnetic signal for transmission to the data sink (9); and wherein the split waveguide (101) is divided into two parts which are arranged at a small distance from each other around a central axis of rotation and which in cross-section has at least one web (105) extending along the longitudinal direction of the waveguide (101) and parallel to the axis of rotation.

The application provides a sample bin offset determination method and device and a computer tomography scanning equipment. The method comprises the following steps: obtaining a plurality of projection images of the sample bin when the sample bin is located on a preset bed; the plurality of projection images comprise a first projection image, a second projection image and a plurality of third projection images obtained by scanning the sample bin when the scanning equipment is located at a first angle, a second angle and a plurality of third angles, and the angle difference between the first angle and the second angle is 180°; determining a first offset and an offset angle of the sample bin based on the first projection image, the second projection image and the plurality of third projection images; and / or obtaining a plurality of local projection images of the sample bin when the scanning system is located at a preset angle; and determining a second offset of the sample bin based on the plurality of local projection images. The first offset and the second offset can be determined without reconstructing the first projection image, the second projection image and the third projection image, the determination efficiency of the sample bin offset is improved, and the service life of the scanning system is improved.

The invention relates to a method and a system for providing parameter data for a control scan of a computed tomography scanner assembly, the method comprising: receiving object path data comprising at least geometric information about a planned motion path of an object; receiving predefined control scan data comprising at least information about the position and orientation of at least one scan plane of at least one planned control scan for controlling the motion path of the object; receiving an evaluation model configured to provide parameter data for performing at least one control scan in accordance with at least the received object path data and the received control scan data; an evaluation model is applied and parameter data for performing the at least one control scan is provided, at least the object path data and the predefined control scan data being input data to the evaluation model.

A computer-implemented method (100) for extending a training data set for machine learning, the method comprising: - Providing a data set of an object to be examined, wherein the data set has coordinate values and measured values for each coordinate, wherein the data set is derived from an image acquisition method of a computer tomograph, - Identifying an anomaly in a section of the data set that corresponds to a sub-area of the object to be examined, - Classifying the anomaly into a number of predefined classification classes using a first machine learning model trained with a first training data set, - Determining a difference value of the anomaly compared to the trained first machine learning model on the basis of a combination of novelty measures by means of a second machine learning model trained with a second training data set, wherein the first training data set and the second training data set are created by a respective random selection of data sets from an overall training data set, and - Supplementing the first training data set with data concerning the identified anomaly if the difference value is above a first predefined threshold.

The broken lines shown in the drawings illustrate portions of the computed tomography scanner that form no part of the claimed design.

A method of manufacture is provided during which a component is scanned using a computed tomography machine to provide scan data. The component includes a first member and a second member. A first member aperture extends through the first member to the second member. Aperture data is determined for the first member aperture based on the scan data. A center of the scanned geometry is located. An eigen vector is determined for the scanned geometry at the center. An exterior point of intersection between an exterior surface of the second member and an axis is located. The axis is coincident with the center and determined using the eigen vector. A second member aperture is formed in the second member according to a formation operation that aligns the second member aperture being formed with the first member aperture in the first member.

A phantom-free calibration method for a computerized tomography scan has the steps of: scanning a plurality of homogeneous human tissues with a computerized tomography scanner and obtaining homogeneous human tissue scan information; scanning a tissue to be tested with the computerized tomography scanner and obtaining tissue to be tested scan information; calculating a spectral characteristic parameter of the computerized tomography scanner with a computing device using a model, wherein a standard tissue parameter of the homogeneous human tissues and the human tissue scan information are used in the model; and calculating a tissue parameter of the tissue to be tested with the computing device using the model, wherein the spectral characteristic parameter and the tissue to be tested scan information are inputted in the model. The phantom-free calibration method makes the tissue parameters of the tissue to be tested more accurate and the calibration process easier and more convenient.

The invention provides a coal pore structure multi-scale quantitative characterization method, which belongs to the field of gas extraction and coal engineering, and comprises the following steps: scanning a preprocessed coal sample by using a scanning electron microscope to obtain a coal sample macroscopic picture; scanning the preprocessed coal sample by using a computed tomography scanner to obtain a micron-sized picture of the coal sample; scanning the pretreated coal sample by using an X-ray scatterometer to obtain a nano-scale picture of the coal sample; extracting macroscopic features of the pore structure of the coal sample from the macroscopic picture of the coal sample; according to the coal sample macroscopic picture and the coal sample micron-order picture, micron-order features of the coal sample pore structure are extracted; and extracting the nano-scale characteristics of the pore structure of the coal sample from the nano-scale picture of the coal sample. According to the method, three different technologies are combined for mutual complementation and verification, quantitative characterization is carried out on the coal pore structure from multiple scales such as macroscopic scale, micron scale and nano scale, and the feature information of the coal pore structure under different scales can be comprehensively and accurately obtained.

An apparatus for analyzing a core sample obtained from a subterranean formation includes a neutron generator, a plurality of detectors, a computed tomography scanner, an information processing device, and a transport system. The neutron generator can operate in a pulsed mode and emit neutrons into the core sample.

A mechanism for controlling an electron beam generator of an X-ray tube that switches between a low voltage mode and a high voltage mode. The proposed mechanism, during a transition between the low and high voltage modes, controls a power drawn by the electron beam generator. In particular, during a transition from a low voltage mode to a high voltage mode, the drawn power is reduced and, during a transition from a high voltage mode to a low voltage mode, the drawn power is increased.

1. Name of the product of this design: Computed tomography scanner screen. 2. Purpose of this design product: used for operating pages and displaying tomographic images. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

1. Name of the design product: Computed tomography scanner. 2. Use of the design product: For medical scanning and imaging. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view 1.

During a manufacturing method, a component is scanned with one or more artifacts using a computed tomography machine. The component includes a first member and a second member covering the first member. The first member includes a first member aperture extending through the first member to the second member. Scan data is scaled using known dimensional data for the one or more artifacts to provide scaled scan data. Aperture data is determined for the first member aperture based on the scaled scan data. The aperture data is indicative of a scanned geometry of the first member aperture. A first drilling reference is determined based on the aperture data. A second member aperture is formed in the second member according to a formation operation that aligns the second member aperture being formed with the first member aperture in the first member. The formation operation is determined using the first drilling reference.

The invention relates to a computed tomography device comprising an X-ray source arrangement (1), a detector arrangement (2) and an anti-scatter grating (3), wherein the X-ray source arrangement (1), the detector arrangement (2) and the anti-scatter grating (3) are arranged coaxially to each other and in a ring-like manner in a circumferential direction (100) around an examination area (5), wherein the anti-scatter grating (3) is arranged radially between the examination area (5) and the detector arrangement (2) and comprises X-ray absorbing lamellae (31) extending in the circumferential direction (100), which are spaced apart from each other in an axial direction (300) perpendicular to the circumferential direction (100).

1. Name of the designed product: Computer tomograph. 2. Use of the designed product: The designed product is used for imaging the human body. 3. Design points of the designed product: In shape. 4. Picture or photo best indicating the design points: Perspective view.

A computer-implemented method for providing parameter data for performing at least one control scan with a computed tomography scanner, comprises receiving object path data, the object path data at least comprising geometric information about a planned movement path of an object; receiving predefined control scan data, the predefined control scan data at least comprising information about a position and an orientation of at least one scan plane of at least one planned control scan for controlling the movement path of the object; receiving an evaluation model configured to provide parameter data for performing the at least one control scan at least depending on the object path data and the predefined control scan data; and applying the evaluation model and providing the parameter data for performing the at least one control scan.

The invention discloses a seed expansion model modeling method based on a discrete element method, and the method specifically comprises the steps: scanning the contour of a seed in soil through a three-dimensional X-ray by using an electronic computed tomography scanner, and obtaining the three-dimensional image data of a seed expansion process; three-dimensional image data obtained through scanning are imported into computer software, an original image is preprocessed through the computer software to construct a triangular mesh model of the seeds, and surface smoothing is conducted on the triangular mesh model; extracting volume change data in the seed expansion process from the triangular mesh model after surface smoothing; in discrete element software, a seed expansion motion model is constructed through volume change data; simulation related parameters and an inter-particle interaction model are set, simulation is operated, a simulation result is compared with an actual situation, and closed-loop adjustment of the simulation related parameters is achieved. According to the modeling method of the seed expansion model, the expansion process of the seeds in real soil can be simulated, and the simulation precision is higher.

Systems / techniques that facilitate thermally adaptive scan sequencing for computed tomography scanners are provided. In various embodiments, a system can access a set of scanning protocols performable by a computed tomography scanner. In various aspects, the system can further access a current thermal state of the computed tomography scanner. In various instances, the system can identify, in the set of scanning protocols and based on the current thermal state, a scanning protocol that is predicted to reduce or control thermal stresses experienced by the computed tomography scanner. In various cases, the system can cause the computed tomography scanner to perform the identified scanning protocol.

1. The name of the design product: computer tomography scanner kit. 2. The use of the design product: the product is used for medical scanning imaging. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: assembly state perspective view. 5. Kit description: kit 1 is the computer tomography scanner mainframe, and kit 2 is the computer tomography scanner scanning bed.

A method for scanning a component includes applying a contrast agent to one or more regions of interest of the component. The method further includes providing a computed tomography scanner including an x-ray source and a detector. The method further includes placing the component between the x-ray source and the detector. The method further includes generating, via the x-ray source, an x-ray cone beam or fan beam that passes through the component. The method further includes receiving the x-ray cone beam or fan beam at the detector and generating an x-ray image of the component.

1. Name of the Design Product: Computed Tomography Scanner. 2. Use of the Design Product: For medical scanning and imaging. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.