Abstract: Embodiments include an x-ray source, comprising: a vacuum enclosure; one or more field emitters disposed along a line within the vacuum enclosure, each field emitter configured to generate an electron beam; an anode disposed within the vacuum enclosure and including a target configured to generate x-rays in response to the electron beams; and a getter extending along the line within the vacuum enclosure.

Abstract: The present disclosure refers to a handheld X-ray fluorescence, XRF, analyzer (1). The XRF analyzer (1) comprises a radiation source assembly (10) configured to irradiate a sample (40) to be tested with an X-ray beam (105), a radiation detector assembly (20) configured to detect a first X-Ray fluorescence, XRF, radiation (205) emitted from the sample (40) in response to the X-ray beam (105), a purge assembly configured for purging through a port connection, a magnet (30) configured to deflect electrons such that they do not reach the radiation detector assembly (20) and a processor configured to determine a property of the sample (40) to be tested from the first X-ray fluorescence, XRF, radiation (205). The present disclosure further refers to a method for elemental analysis with a handheld XRF analyzer (1).

Abstract: For radioactive source localization, the SPECT system uses a spectroscopic, low spatial resolution detector to localize the Point-of-(first) Interaction (POI) within the detector sensor material in 3D (“3D detector” or “3D spectroscopic detector”), which in turn can be used to estimate the general direction of the source of emissions. By detecting the depth of the 3D POI, and emissions over the specified energy range, a processor may determine a direction towards the source. No shielding is needed as detected emissions from other directions may be discarded. Different shielding may be used to assist in directionality determination, such as different thickness profiles or material type by side of the detector, allowing directional determination by intensity.

Abstract: The present description concerns a photosite including: a photoconversion area configured to convert light into charges; at least one assembly of a first node and of a first charge flow path including a first switch configured to allow the flowing of charges from the photoconversion area to the first node of said assembly when said first switch is on and block the passage of charges between the photoconversion area and the first node of said assembly when said first switch is off; and a second charge flow path between said photoconversion area and a second node of the photosite, wherein the first and second paths are configured so that each first path holds the priority over the second path when the first switch of said first path is on.

Abstract: The present disclosure provides Emission Computed Tomography (ECT) detector assemblies and related methods. The ECT detector assemblies may include a detector micro-block, a detector block, etc. The detector micro-block may include detector units arranged side by side along a second direction. Each of the detector units may include crystal elements and an optical sensor array. The crystal elements may be arranged in crystal element rows along the second direction and crystal element columns along a first direction perpendicular to the second direction. Each crystal element may have a first end and a second end and extending from the first end to the second end along a third direction perpendicular to the first direction and the second direction. The optical sensor array may include optical sensors arranged along the first direction.

Abstract: Embodiments relate to a radiation imaging device and a radiation imaging system, and more particularly, to a radiation imaging device and a radiation imaging system capable of monitoring, in real time, a radiation profile, synchronizing radiation irradiation and radiographic images, and removing noise signals in the case of treating a patient or the like by using radiation.

Abstract: A NIR spectrometry device that includes different NIR PIN diodes (NPDs) and a guard PIN diode (VLPD) that are operated in a fully depletion mode. The different NPDs are located at different lateral positions corresponding to absorption depths of different NIR wavelengths. Each NPD is configured to collect electron-hole pairs (EHPs) generated by radiation that passes through a side edge of the device at a wavelength having an absorption depth that corresponds to a lateral position of the NPD. The VLPD is located at a lateral position that corresponds to a distance from the side edge that exceeds an absorption depth of visible light. The VLPD is configured to collect EHPs generated by unwanted radiation that passed through the side edge of the NIR spectrometry device and to prevent the EHPs generated by unwanted radiation to reach any of the different NPDs.

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.