Abstract: Systems and methods for a parameter adjustment of a multi-energy computed tomography (CT) device is provided. The systems and methods may obtain, by at least one processor, a parameter set associated with a scan to be performed using a multi-energy CT device. The parameter set may include multiple scanning parameters and multiple reconstruction parameters. The systems and methods may also determine, by the at least one processor, a maximum pitch associated with the scan based on a correlation relationship and the parameter set. The correlation relationship may describe a correlation between a pitch of the multi-energy CT device and the parameter set.

Abstract: A standardized artificial intelligence automatic radiotherapy planning method includes acquiring a medical image; automatically delineating an ROI area of the medical image to acquire a geometric anatomical structure; determining a prescription according to disease type information corresponding to the medical image, the geometric anatomical structure, and a preset disease-prescription template library, and determining a radiation angle of radiation therapy; obtaining a radiation therapy dose distribution result using a dose prediction model; performing optimization processing using a reverse optimization algorithm based on dose distribution or DVH guidance, with reference to the radiation dose distribution result, to generate executable radiation therapy plans.

Abstract: A portable assessment kit for measuring metal content of an aqueous solution. The kit includes a sample container having an opening at its first end for containing a sample of the aqueous solution, a disc holder having a first end for detachably attaching the disc holder to the opening of the sample container, a pre-concentration disc for collecting metals and being arrangeable in the disc holder. The pre-concentration has a first side and a second side. The kit further includes means for pumping the sample through the opening of the sample container to the first side of the pre-concentration disc and a measurement device for measuring amount of metals in the pre-concentration disc.

Abstract: A radiation dosimetry gel, usable in a polymer gel dosimeter having an improved sensitivity and high safety, includes a gelator, and a compound of the following Formula (1): wherein R1 is a hydrogen atom or a methyl group, m and n are each an integer of 2 to 4, k is 0 or 1, and a plurality of R1s and ms are each the same as or different from one another. Also provided for is a radiation dosimeter including the radiation dosimetry gel as a material for radiation dosimetry.

Abstract: A scintillator panel includes a substrate made of an organic material, a barrier layer formed on the substrate and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide as a main component. According to this scintillator panel, moisture resistance can be improved by providing the barrier layer between the substrate and the scintillator layer.

Abstract: The invention relates to an X-ray detector device for industrial measurement of workpieces by X-ray, having scintillator means (12) for converting incident X-rays of the X-ray radiation passing through a workpiece being measured into visible light at a scintillator light exit surface (14), optical detector means (22; 24, 26) optically downstream of the scintillator means, for converting the visible light at the scintillator light exit surface into an electronic image signal, and X-ray protection means (18, 20; 18?, 20?; 18?, 20?) which are provided in an optical beam path between the scintillator means and the optical detector means and have a body, in particular a glass body, that is transparent to visible light and has X-ray absorbing properties.

Abstract: A radiation detector, comprising two or more ionisation chambers (10), each of which comprises a main body (11), and which are arranged in such a way that the main bodies (11) delimit a measurement space (M) inside which a radiation source can be positioned.

Abstract: The present invention relates to user guiding during X-ray imaging. In order to provide further guidance during X-ray imaging, a guiding device (10) for visual guidance during X-ray imaging is provided. The guiding device (10) comprises a camera arrangement (12), a display arrangement (14) and a housing structure (16). The housing structure comprises a housing (18) of an X-ray imaging system for housing an X-ray source or an X-ray detector. Further, the camera arrangement is configured to capture image data of a region of interest of a subject in front of the housing. Furthermore, the display arrangement is configured to present the captured image data as a live presentation of the region of interest. Still further, the camera arrangement is mounted to the housing on a first side (20) of the housing, and the display arrangement is mounted to the housing on a second side (22) of the housing, the second side being at least one of the group of lateral and opposite to the first side.

Abstract: The present application relates to a photon measuring and reading device, which belongs to the field of detection equipment, including a mounting seat and a photon counter. The photon counter can move up and down on the mounting seat. The mounting seat is provided with a vertically arranged sliding trough, and the photon counter is provided with a sliding rod slidably connected with the sliding trough. A double head motor is arranged on the mounting base, and a linkage mechanism is arranged between the output shaft at the tail end of the double head motor and the sliding rod. The bottom end of the photon counter is fixed with a box body.

Abstract: Aspects of the disclosure include a system for performing cytometry that can be operated in three operational modes. In one operational mode, a fluorescence image of a sample is obtained by exciting one or more fluorophore(s) with a top-hat-shaped excitation beam with a plurality of beams that are radiofrequency shifted relative to one another. In another operational mode, a sample can be illuminated successively over a time interval by a laser beam at a plurality of excitation frequencies in a scanning fashion to generate an image of the sample from the detected fluorescence. In another operational mode, the system can be operated to illuminate a plurality of locations of a sample concurrently by a single excitation frequency (e.g., a horizontal extent), which is generated, e.g., by shifting the central frequency of a laser beam by a radiofrequency and detected fluorescence is used to analyze the sample.

Abstract: A photon counting radiation detector includes a cell structure including a substrate and an epitaxial layer provided on the substrate, radiation being incident on the epitaxial layer; an inclination ? of the substrate being set in a predetermined range, where tsub is a thickness of the substrate, tepi is a thickness of the epitaxial layer, L is a length of the substrate, and the inclination ? is an inclination of the substrate with respect to an incident direction of the radiation. The epitaxial layer is preferably one type selected from SiC, Ga2O3, GaAs, GaN, diamond, and CdTe. Such a photon counting radiation detector is preferably a direct converting type.

Abstract: Systems and methods for detecting radiation are generally described. The radiation detector comprises at least one semiconductor material, such as a thallium halide, that provides an electrical signal and optical signal upon exposure to a source of radiation. The electrical signal and optical signal may both be measured to detect the radiation.

Abstract: An imaging system (302) includes an X-ray radiation source (312) configured to emit radiation that traverses an examination region, a detector array (314) configured to detect radiation that traverses an examination region and generate a signal indicative thereof, wherein the detected radiation is for a 3-D pre-scan, and a reconstructor (316) configured to reconstruct the signal to generate a 2-D pre-scan projection image. The imaging system further includes a console (318) wherein a processor thereof is configured to execute 3-D volume planning instructions (328) in memory to display the 2-D pre-scan projection image (402, 602, 802, 1002) and a scan plan or bounding box (404, 604, 804, 1004) for planning a 3-D volume scan of a region/tissue of interest based on a selected protocol for a 3-D volume scan of a region/tissue of interest being planned and receive an input confirming or adjusting the scan plan box to create a 3-D volume scan plan for the 3-D volume scan of the region/tissue of interest.

Abstract: A device for radioactivity counting and characterization for a solution. The device includes a container having at least two recesses, a first recess for receiving a vial and a second recess for receiving a radioactivity sensor, a radioactivity sensor having a semiconductor sensor presenting a cone of detection directed to the first recess of the container for receiving a vial, a removable closure element, an armored cover around the container and its upper face, the upper face of the armored cover having an opening for introducing the vial into the container and a plate for supporting the device.

Abstract: The invention relates, in particular, to structures of a dental and medical cone beam computed tomography (CBCT) apparatus. The basic construction of the apparatus includes two elongated frame parts (11, 21) out of which the first frame part (11) is arranged to support X-ray imaging means (14, 15) and wherein the frame parts (11, 21) are mechanically connected to each other via an articulated construction (22) so as to allow for tilting of the first frame part (11) supporting the X-ray imaging means (14, 15) with respect to the second frame part (21).

Abstract: Described herein is a spectrometer device. The spectrometer device includes: at least one filter element adapted to separate at least one incident light beam into a spectrum of constituent wavelength; at least one sensor element having a matrix of optical sensors, the optical sensors (116,142) each having a light-sensitive area; and at least one evaluation device configured for determining at least one longitudinal coordinate of an object.

Abstract: The present invention is directed toward a system and method for STED nanography, which reduces background noise. To remove background noise from a STED image, the polarization of the STED beam is altered from that used to obtain the original image. A polarized image is obtained. This polarized image can then be subtracted from the original image to remove noise inherent to the image.

Abstract: An adaptive X-ray anti-scatter device for placement in a source-detector axis of an X-ray imager includes an anti-scatter filter having a source orientable surface and a detector orientable surface. The anti-scatter filter comprises a plurality of realignable slats that absorb incident X-rays and are separated by a plurality of interstitial portions. The device also includes a first actively deformable member comprising a first set of one or more actively deformable actuators disposed across a first region of the first actively deformable member. At least a portion of the first set is partially or fully recessed within the interstitial portions. At least one actuator of the first set is in contact with a corresponding realignable slat of the plurality of realignable slats and is configured to change the alignment of the corresponding realignable slat in relation to the source-detector axis.

Abstract: Countermeasure simulating structures may include (a) a base and (b) one or more separated combustible tracks fixed to the base's surface. The combustible tracks may include thermite and/or other combustible material. The combustible tracks may be shaped to simulate countermeasure flares deployed by a vehicle (e.g., a jet). The countermeasure simulating structure may be incorporated into a countermeasure simulating system that includes (a) an infrared and/or optical sensing system (e.g., like those included in missiles) and (b) a simulator mount holding the countermeasure simulating structure.

Abstract: A lattice light sheet microscope includes a single spatial light modulator (SLM), the optical modulation plane of which conjugates to an image plane of an excitation objective and which is configured to: generate an optical lattice by loading a phase map obtained from a central cross section of a corresponding optical lattice of a desired lattice light sheet, and tile the optical lattice by loading a phase map obtained from an off-center cross section of the corresponding optical lattice. The lattice light sheet microscope also includes a transparent annular diaphragm arranged at a plane conjugating to the entrance pupil of the excitation objective lens. The lattice light sheet microscope further includes a first galvanometer configured to: scan each optical lattice in the extending direction thereof so as to form a tiled lattice light sheet.