Abstract: An ion beam analysis method to quantitatively measure the presence of fluorinated compounds in aqueous samples. The method is a quick, cost effective, nondestructive and quantitative, screen for the presence of fluorinated compounds in solution. The present invention includes a novel method of using an ion beam analysis method (such as PIGE) in air (ex vacuo) to unambiguously easily, quickly, accurately, precisely and cost effectively identify the presence of fluorinated compounds (such as PFASs) that have been extracted from aqueous solutions. The present invention may be used with a wide variety of aqueous solutions, including environmental groundwater samples, with little processing.

Abstract: A method is provided for operating a medical imaging X-ray device. The method records an earlier individual image of a series of images of a patient using a recording facility. The location of a medical component is identified, and the medical component is localized in the earlier individual image using a computing facility. A subregion of the earlier individual image is specified, determined by the position of the medical component localized in the earlier individual image and with the localized medical component represented. A later individual image is recorded and the medical component is localized in the later individual image. The later individual image is displayed, the later individual image averaged exclusively region-specifically in the region of the medical component with the subregion of the earlier individual image. Method acts are repeated with the displayed individual image as the earlier individual image to enhance visibility of the medical component.

Abstract: There is provided a photon-counting x-ray detector system (200) comprising a plurality of photon-counting channels (220), and at least one anti-coincidence circuit (230), each of which is connected to least two of the channels and configured to detect coincident events in the connected channels. The x-ray detector system (200) further comprises an anti-coincidence controller (240) configured to control the operation of said at least one anti-coincidence circuit based on photon count information by gradually adapting the operation of said at least one anti-coincidence circuit with increasing count rates, starting from a threshold count rate.

Abstract: The present invention relates to a device for radiating or receiving an electromagnetic wave. The device includes a substrate including a recess coated by a material that reflects the electromagnetic wave, a metal portion that radiates or receives the electromagnetic wave, and an electronic element connected to the metal portion on the substrate. The metal portion includes a portion provided above an opening of the recess and a portion which is located on the substrate and connected to the electronic element.

Abstract: Various methods and systems are provided for an X-ray imaging system comprising an X-ray source, an X-ray detector array having a plurality of X-ray detecting elements configured to detect X-rays passing through an object configured to be scanned, a plurality of collimator plates positioned between the object to be scanned and the X-ray detector array, wherein one or more of the plurality of collimator plates comprises at least one bend at or in a region of a bottom end of the collimator plate, the bottom end facing the X-ray detecting elements of the X-ray imaging system. The X-ray imaging system may be a CT imaging system or other imaging system that includes an X-ray source and an X-ray detector.

Abstract: System of positron emission tomography to obtain images of a subject, which comprehends: one first fixed axis of rotation; one second axis of rotation substantially parallel to the first axis, in which the second axis is rotatable around the first axis at a predefined distance; one element of support rotatably coupled to the second axis; one pair of scintillators fixed to the element of support, said pair being collinear and aligned along the same longitudinal axis; two photomultipliers, each optically coupled to one of the scintillators; in which the element of support has a free region between the pair of scintillators to receive the subject to be imaged.

Abstract: The present invention relates to digital pathology. In order to improve uniformity at microscopic level and to enhance stability in time for color calibration, a calibration slide (10) is provided for a digital pathology scanning microscope. The calibration slide comprises a substrate (12) and a pixel layout (14) comprising a plurality of spaced apart metal nanostructures (16) arranged on a surface (18) of the substrate. The substrate is optically transparent. The metal nanostructures are arranged to produce plasmon resonances for generating a color image under a bright-field illumination. The color image comprises a plurality of calibration color values that are provided for calibrating a digital pathology imaging system.

Abstract: The invention relates to a detection values determination system, especially for photon-counting CT scanners, comprising a detection pulse providing unit for providing detection pulses for an array of detection pixels 17, which is provided with an anti-charge-sharing grid 15 for suppressing charge sharing between different clusters 14 of the detection pixels, wherein the detection pulses are indicative of the energy of photons incident on the detection pixels. Charge-sharing-corrected detection values are determined based on the provided detection pulses, wherein for determining a charge-sharing-corrected detection value for a detection pixel of a cluster only detection pixels of the same cluster are considered. This allows for a relatively high detective quantum efficiency, wherein the technical efforts for providing the charge sharing correction can be relatively low.

Abstract: A new apparatus and method within a portable Mudlogging gas detection system that determines the total amounts and various composition of an incoming mix of gases extracted from drilling fluid. The Mudlogging system consists of at least one electronic computing device, at least one infrared interferometer, and at least one other device for detecting gasses extracted from the drilling fluid. The Mudlogging system may switch from the primary gas detection means to a secondary gas detection means upon detection of a non-recoverable fault of the first gas detection means.

Abstract: An apparatus includes an optical detector configured to detect at least a portion of incoming radiation. The apparatus also includes an optical component configured to provide at least the portion of the incoming radiation to the optical detector. The apparatus further includes at least one flexure that mounts the optical component to the optical detector. Each flexure is configured to deform in response to expansion or contraction of at least one of the optical component and the optical detector. Each flexure may include a side surface that is flexible in a first dimension and rigid in second and third dimensions, where the dimensions are orthogonal to each other. The optical component may include at least one of a filter, a lens, a polarizer, an aperture, and a cover.

Abstract: Fluorescence imaging system for an operating theatre, comprising a device illuminating the operating theatre and emitting a white light, and a fluorescence imaging device. Said fluorescence imaging device comprises a light source emitting radiation for excitation of a fluorescent marker in a range of emission wavelengths of between 600 and 900 nm. The light emitted by the illuminating device is filtered by a low-pass filter, of which the cut-off wavelength is below the emission range of the fluorescent marker, but is nonetheless able to show an increase or fluctuations in the attenuation for wavelengths above the emission range of the fluorescent marker, the product of the attenuation of the filter of the detector and of the attenuation of the low-pass filter of the illuminating device leading to an attenuation by a factor of at least 106.

Abstract: Disclosed is a PET detector assembly in a combined PET/CT scanner system having a backplane structure for supporting two or more PET detector rings that provides substantially balanced load on the gantry backplane while accommodating the varying number of PET detector rings between short axial PET FOV system as well as long axial PET FOV system.

Abstract: A method for photon counting for pixels in a pixelated detector is disclosed, wherein for each of the pixels, one or more neighbouring pixels are defined. The method comprises receiving a charge in one or more of the pixels and comparing for each of the pixels the charge with a trigger threshold. If the charge in a pixel is above the trigger threshold, the charge is registered in the pixel after a registration delay, wherein the registration delay is dependent on the level of the charge received in the pixel in such a way that a registration delay decreases with increasing charge. A counter for a pixel is incremented when the charge is registered and an increment of a counter of the neighbouring pixels is inhibited. Pixelated semiconductor detectors are also disclosed.

Abstract: A gamma ray detector is a detector detecting gamma rays and includes a photomultiplier tube having an entrance window and a photoelectric surface. The entrance window is a Cherenkov radiator. The photoelectric surface is formed on a vacuum side of the entrance window via an intermediate layer. The thickness of the intermediate layer is equal to or less than the wavelength of Cherenkov light emitted by an interaction of the gamma rays with the entrance window.

Abstract: The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers.

Abstract: Infrared cameras can include an infrared sensor and an infrared lens assembly defining an optical axis. A camera can include an inner gear engaging the infrared lens assembly and a focus ring that engages the inner gear. The inner gear can engage the focus ring and the infrared lens assembly such that rotation of the focus ring about its central axis can cause the rotation of the infrared lens assembly about its optical axis, which may be offset from the central axis of the focus ring. The camera can include a sensor can threadably engaging the infrared lens assembly and fixed relative to the infrared sensor such that rotation of the infrared lens assembly causes the infrared lens assembly to move relative to the infrared sensor. The sensor can can support other components such as a visible light lens assembly or a laser within a perimeter of the focus ring.

Abstract: A pair of straight or angularly oriented flat emitters formed of an electron emissive material are positioned on an emitter support structure and are electrically connected to one another regardless of the mounting structure on which the emitters are positioned. The electrical connections between the emitters are formed directly between the emitters using electrically conductive material members that are placed between and affixed to the emitters to provide the electrical pathway or connection therebetween the emitters after formation of the emitters. These electrical connection members form an electrical connection between the angled pair of emitters separately from an emitter support structure on the cathode, such that the electrical connection members and angled emitters including the connection members can separate the mechanical architecture of the cathode assembly from the electrical architecture, thereby creating a simplified construction for the cathode assembly and associated x-ray tubes.

Abstract: A medical apparatus according to an embodiment includes control circuitry. The control circuitry is configured to: acquire a three-dimensional cumulative dose distribution of an object; set a treatment target site by treatment accompanied with X-ray irradiation to the object; and determine an X-ray irradiating direction for performing the X-ray irradiation based on the three-dimensional cumulative dose distribution and the treatment target site.

Abstract: The invention concerns a device (102) for X-ray imaging, comprising a device mount (104) and an arm (106) movably connected to said device mount for rotation, relative to said device mount, around a device axis of rotation (108). The device (102) furthermore comprises an X-ray source (110) for emitting an X-ray beam (111) and an X-ray detector (112). In addition the system (102) comprises a carrier (114) having a U-arm geometry, wherein said U-arm geometry is provided with mutually facing portions (116, 118) and an intermediate portion (120) connecting said mutually facing portions (116, 118); wherein said mutually facing portions (116, 118) are configured for carrying said X-ray source (110) and said X-ray detector (112), respectively; and wherein said intermediate portion is movably connected to the arm (106) for rotation, relative to said arm (106), around a carrier axis of rotation (122) substantially perpendicular to the device axis of rotation (108).

Abstract: Apparatus for ensuring adequate sunscreen protection includes a light-activated sunscreen product, and an illuminator including a battery, a switch and a light source that causes the light-activated sunscreen product to glow when illuminated with the light source. The light-activated sunscreen product may include a zinc-oxide-based lotion and a fluorescent substance such as fluorescein dye causing the lotion to glow in any available color when applied to the skin and illuminated by the light source. The closure may be a cap with a threaded attachment to the container, and the light source may comprise one or more ultraviolet light-emitting diodes. The illuminator may be disposed in a cap with top and side surfaces, and the switch may be positioned on the side of the cap, and the light source on the top of the cap, or vice versa. The switch is preferably a momentary contact switch.