Abstract: Systems and methods for ascertaining an item of torsion information of a bone of a patient, wherein an X-ray facility with adjustable projection geometry of a recording arrangement described by projection parameters is used. A first X-ray image is recorded of an end region of the bone in a first projection geometry in which a torsion direction defined relative to at least one torsion landmark and used for ascertaining a roll angle lies in a first computing plane, which is formed by the focal point of the X-ray source and a reference direction which may be determined in the first X-ray image by at least one reference landmark. A second X-ray image is recorded of the end region of the bone in a second projection geometry with a direction of projection deviating from the direction of projection of the first projection geometry, and forming a second computing plane from the reference direction which may be determined in the second X-ray image likewise by the at least one reference landmark, and the focal point.

Abstract: Embodiments of a phantom for calibrating an imaging system are disclosed herein. In one example, a phantom for an imaging system includes a base comprised of a first material, a plurality of layers positioned on the base, each layer of the plurality of layers comprised of the first material or one or more additional materials, and a plug coupled to a front face of the base and the plurality of layers, the plug configured to couple to an accessory slot of a patient table of the imaging system.

Abstract: The present application discloses a tomosynthesis system and method that combines high dose gain maps directly, or high-resolution components of high dose gain maps, with low resolution components of low dose gain maps at a plurality of imaging parameters, to produce high quality gain map efficiently at the plurality of imaging parameters, to perform gain corrections to x-ray images.

Abstract: A robust near infrared sensing device and method for operating of robust near infrared device, the method includes (i) exposing a first side edge of the device to near infrared (NIR) radiation; (ii) detecting by a NIR PIN diode (NPD), the NIR radiation, while operating at a fully depletion mode, (iii) collecting, by guard PIN diodes positioned at different sides of the NPD and while operating in the fully depletion mode, electron-hole pairs generated by unwanted radiation from any side of different sides of the near infrared PIN diode, and preventing these electron-hole pairs from any side of NPD to reach the NPD.

Abstract: A nuclear medicine diagnostic apparatus according to an embodiment includes a nuclear medicine detector and processing circuitry. The nuclear medicine detector includes a plurality of detection devices that detect gamma rays. The processing circuitry controls a change from a first relative position of the nuclear medicine detector and a subject to a second relative position that is separate from the first relative position by a distance smaller than a device size of the detection device, collects first data in the first relative position, collects second data in the second relative position, and reconstructs a nuclear medicine image based on the first data and the second data.

Abstract: An X-ray imagining film that transforms X-ray radiation into visible light by scintillating, includes a substrate and a nanocomposite formed on the substrate. The nanocomposite includes perovskite nanosheets and plural organic chromophores that interact with the perovskite nanosheets through F—Pb bonds. The perovskite nanosheets are selected to absorb the X-ray radiation and emit first light centered on 510 nm, and the plural organic chromophores are selected to absorb second light between 400 and 600 nm, with a peak at 510 nm, and emit the visible light in 500 to 800 nm range.

Abstract: A multiband focal plane array (FPA) is provided including a readout integrated circuit (ROIC) substrate; a plurality of short wave infrared (SWIR) and long wave infrared (LWIR) pixels on the ROIC substrate; a microbolometer on the plurality of SWIR and LWIR pixels; and a colloidal quantum dot photodiode on the SWIR pixels between the SWIR pixels and the microbolometer. The microbolometer is coupled to the LWIR pixels through metal contacts on the LWIR pixels.

Abstract: A composite structure detecting method includes generating a terahertz emission electromagnetic wave incident on a composite structure, wherein the composite structure comprises a plurality of interface layers; detecting a plurality of terahertz reception electromagnetic waves reflected, transmitted, or scattered after the terahertz emission electromagnetic wave is incident on the plurality of interface layers of the composite structure; measuring a plurality of characteristic signals based on the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves; and analyzing the plurality of characteristic signals to determine a plurality of characteristics of the plurality of interface layers.

Abstract: The specification teaches an imaging system that evaluates meat quality. The imaging system includes an X-ray scanning system that generates X-ray scan data of meat and a hyperspectral imaging system that generates hyperspectral imaging data. A computing device acquires the X-ray scan data and hyperspectral imaging data, automatically determines a quality of the meat by analyzing the acquired X-ray scan data in combination with the hyperspectral imaging data, categorizes the meat, based on the determined quality, into one of acceptable quality and unacceptable quality categories; and generates data indicative of the quality of the meat.

Abstract: One or more example embodiments of the present invention relates to a medical imaging system comprising a computed tomography gantry; a carriage; and a rail system, wherein the computed tomography gantry is movably mounted via the carriage and the rail system such that the computed tomography gantry is translationally movable along the rail system, and the carriage and the rail system are configured to transmit a driving force for the translational movement of the computed tomography gantry in a non-positive locking manner from the carriage to the rail system.

Abstract: Systems and methods for estimating the SARA fractions of a reservoir fluid. This method uses a machine learning (ML) based model to predict the SARA fractions of a reservoir fluid. The ML models are trained using conventional laboratory data, such as fluid composition from gas chromatography, SARA measurement, Asphaltene onset pressure (AOP), etc. Reservoir fluid can be pumped from a wellbore into a downhole fluid analyzer tool. The downhole fluid analyzer tool can take measurements indicating the presence and levels of certain particles in the fluid. The measurements can be applied to the ML models to estimate SARA levels in the reservoir fluid.

Abstract: A method for scanning at least one component includes placing the at least one component inside a storage vessel; filling the storage vessel with a cryogenic material; cooling the at least one component; placing the storage vessel between an x-ray source and a detector of a CT scanner; generating, via the x-ray source, an x-ray cone beam after cooling of the component that passes through the storage vessel while the at least one component is disposed within the storage vessel; receiving the x-ray cone beam at the detector; and generating an x-ray image of the at least one component.

Abstract: A method for checking a stack of multiple battery element layers in the form of anodes, cathodes, and separators. Geometries of at least one of the large surfaces of at least the anodes and/or the cathodes are determined. The battery element layers are stacked to form the stack. Subsequently for a position check of the anodes and/or of the cathodes, the stack is irradiated by X-ray radiation), wherein the X-ray radiation is oriented perpendicularly with respect to the large surfaces of the battery element layers, and via the detected X-ray radiation, with regard to at least one pair of opposite sides of the stack the greatest edge spacing that is present between the edges of the considered type of electrode (anodes or cathodes) of this pair is determined.

Abstract: Disclosed is a method for spectrally unmixing spectral data originating from a set of spectral sources and including a series of one or more optical spectra. The method can include modeling the spectral data using an endmember matrix and an abundance matrix, the endmember matrix including a set of endmember spectra respectively corresponding to the set of spectral sources, and the abundance matrix indicates an abundance of each endmember spectrum in each spectrum. The method can also include providing external prior spectral information comprising prior endmember information and prior abundance information conveying at least partial prior knowledge about the endmember matrix and the abundance matrix, respectively, and performing a spectral unmixing operation on the spectral data to determine a solution for the endmember and abundance matrices, using the external prior spectral information as input.

Abstract: Disclosed herein is a radiotherapy apparatus comprising a radiation source coupled to a rotatable gantry, a movable subject support surface and a controller. The controller is configured to obtain a first and a second anatomical location of the patient, determine a vector using the first and second anatomical location, apply radiation from the radiation source to the first and second anatomical location and move the subject support surface to the gantry based on the angular deviation.

Abstract: A flexible detector includes: a panel part including a detection panel configured to detect radiations, and first and second protection panels respectively provided at first and second surface sides of the detection panel, the panel part being configured to be deformable; a main frame part coupled to one side of the panel part; and an end frame part coupled to an end of the other side of the panel part, in which the detection panel, the first protection panel, and the second protection panel extend in a first direction.

Abstract: A layered detection method comprises generating a terahertz emission electromagnetic wave, and emitting the terahertz emission electromagnetic wave at any angle to a solid material; detecting a plurality of terahertz emission electromagnetic waves reflected or transmitted after the terahertz emission electromagnetic wave is incident on the solid material and passes through an entire thickness of the solid material in a first direction; measuring and analyzing a plurality of characteristic signals according to the terahertz emission electromagnetic wave and the plurality of terahertz reception electromagnetic waves, to distinguish the solid material along the first direction into a plurality of parallel layers, and determine a plurality of characteristics of the plurality of layers; and determining at least one defect information of each layer of the plurality of layers according to the plurality of characteristics of the plurality of layers.

Abstract: A consumer electronic device includes a low power. e.g. pyroelectric, sensor (8) arranged to detect the presence of a person (6), to switch from standby to full power mode. The sensor (8) may output a small analogue signal which is input to a microcontroller (7) for amplification and digital conversion. The microcontroller (7) is configured to supply power to the sensor (8), for example by configuring an integrated reference voltage source as an input to an integrated operational amplifier which is used to supply power to the sensor. This provides a stable low power supply, thereby reducing noise and false triggering of the sensor. Also, there may be no need to provide an additional power supply for the sensor, so reducing the number of components required and allowing for a low-cost and compact sensing circuit (5).

Abstract: An X-ray imaging system using multiple pulsed X-ray sources to perform highly efficient and ultrafast 3D radiography is presented. There are multiple pulsed X-ray sources mounted on a structure in motion to form an array of sources. The multiple X-ray sources move simultaneously relative to an object on a pre-defined arc track at a constant speed as a group. Electron beam inside each individual X-ray tube is deflected by magnetic or electrical field to move focal spot a small distance. When focal spot of an X-ray tube beam has a speed that is equal to group speed but with opposite moving direction, the X-ray source and X-ray flat panel detector are activated through an external exposure control unit so that source tube stay momentarily standstill equivalently. 3D scan can cover much wider sweep angle in much shorter time and image analysis can also be done in real-time.

Abstract: Method for determining an X-ray image dataset of a target region of an object to be examined, wherein projection images showing the target region are captured by an X-ray detector and the X-ray image dataset is reconstructed from the projection images, wherein a first portion of the projection images is captured so as to be collimated onto the target region by the target region being irradiated with X-ray radiation by an X-ray device through at least one main radiation opening of a collimator assembly. The invention also relates to a corresponding apparatus for determining an X-ray image dataset of a target region of the object to be examined. The invention generally relates to the field of medical X-ray imaging, in particular with the aim of acquiring projections for reconstructing 2D computed-tomography images.