Abstract: A medical image diagnosis apparatus of an embodiment includes a self-radioactive scintillator constituted of a single crystal; plural photon detectors that are arranged at various positions in the scintillator, and that output an electrical signal according to a quantity of radiation radiated from the scintillator; and calibration circuitry configured to calibrate an electrical signal output from each of the photon detectors such that calculation results based on the electrical signal output from each of the photon detectors are same among the photon detectors.

Abstract: Nuclear reactors are emitters of a fundamental particle known as an antineutrino. The antineutrinos emitted as a result of nuclear fission reactions inside a reactor core carry information about those fission reactions. To detect the antineutrinos emitted by the nuclear reactor, the exemplary detector detects a positron event followed by a neutron event. The exemplary detector can also reconstruct the direction of the detected neutron to remove events produced by cosmogenic fast neutrons from the neutrons generated by the nuclear fission.

Abstract: An X-ray emitter includes an emitter housing in which an X-ray tube is disposed and held in the emitter housing by a fixing facility. The fixing facility includes a fixed bearing disposed on the cathode side and a floating bearing disposed on the anode side. At least the floating bearing has at least one damping element. In the X-ray emitter, the X-ray tube is aligned inside the emitter housing and fixed in a respectively low-vibration or vibration-damped manner, resulting in a more stable focus position relative to a beam exit and also a correspondingly improved image quality.

Abstract: The present invention discloses a detection device for discriminating between different materials, and a method for doing so. The device comprises an optical system having at least one optical focussing element and a receiving element. The receiving element is sensitive to electromagnetic radiation, typically in the millimeter wave band, and the optical system being arranged to focus incident energy from a scene onto the receiving element. The optical system comprises a prism element having a first surface and a second surface, the first surface being opposite the second surface. At least a portion of the first surface is positioned at an angle ? to the second surface. The angle ? varies between a minimum at a first position on the first surface and a maximum at a second position on the first surface.

Abstract: A radiation detector and detection method comprising one or more antineutrino capture sections having a plurality of cells. The cells including hydrogen, act as scintillators and contain a wavelength shifter. Also included are a plurality of neutron capture layers containing a neutron capture agent. The cells are disposed between said neutron capture layers. The layers act as scintillators to convert the radiation emission of a neutron capture to light for transmission to at least one of the cells and the cells and layers have different scintillation time constants.

Abstract: A photomultiplier tube for use in an imaging plate scanner. In one embodiment, the photomultiplier tube includes a housing having a window; a focusing electrode located in the housing; an electron multiplier dynode located in the housing; an anode; a cathode and a memory storing parameters. Another embodiment provides An imaging plate scanner including a photomultiplier tube having a window, an anode, and a cathode; a light source positioned to radiate light on the anode or cathode; and an electronic processor communicatively coupled to the light source and configured to generate a supply voltage value for the photomultiplier tube, activate the light source and determine an output current of the anode or of the cathode, and generate an error message if the output current deviates from an expected current range. A power supply is electrically connected to the electronic processor and configured to generate the supply voltage.

Abstract: The purpose of the present invention is to provide: a radiation shielding liquid filter having a radiation shielding effect, a simpler and lighter structure, and various mounting locations so as to protect a surgical patient from exposure to radiation emitted during X-ray imaging using a C-arm, which is a mobile X-ray imaging device, and a stationary X-ray imaging device used during X-ray imaging in a hospital; and an X-ray imaging device provided with the same.

Abstract: A system for labeling an object uses at least one object label made from a material that absorbs and reflects incident energy uniformly across all wavelengths of incident energy at a ratio proportional to a thickness of the material and that includes a pattern having variations in the thickness of the material along at least one of two orthogonal directions across the label. An interrogator directs a predetermined wavelength of radiation to the at least one label, and a reader to receives reflected radiation from the label at the predetermined wavelength and interprets the reflected radiation to recognize the pattern.

Abstract: Disclosed herein is a radiation detector, comprising: a radiation absorption layer comprising an electrode; a capacitor module electrically connected to the electrode and comprising a capacitor, wherein the capacitor module is configured to collect charge carriers from the electrode onto the capacitor; a current sourcing module in parallel to the capacitor, the current sourcing module configured to compensate for an electrical current of a dark noise in the radiation detector and comprising a current source and a modulator; wherein the current source is configured to output a first electrical current and a second electrical current; wherein the modulator is configured to control a ratio of a duration at which the current source outputs the first electrical current to a duration at which the current source outputs the second electrical current.

Abstract: An imaging method includes: irradiating breast tissue with infrared light, detecting light in a narrow wavelength band selected from wavelength bands from 1400 nm or more to 1600 nm or less, among light radiated from the tissue irradiated with the infrared light, and generating, based on the detected light in the narrow wavelength band, an image to specify an area in the tissue containing breast cancer cell aggregation or breast cancer tissue.

Abstract: A radiation scintillator detector comprising a substrate on which are arranged a scintillator module and a silicon photomultiplier optically coupled one to the other. The detector includes a package comprising an outer casing enclosing said scintillator module and said photomultiplier, said package comprising inside said outer casing an inner casing comprising resin reflecting photons, in particular infrared and/or visible photons, emitted by said scintillator module upon receiving a ionizing radiation, enclosing said scintillator module and said photomultiplier.

Abstract: In the present invention, cells cultured inside the wells of a microplate are observed easily and clearly regardless of the height or curvature state of the liquid surface of the culturing liquid. Provided is an observation device that includes an illumination optical system that irradiates a transparent sample with illumination light from a light source, an objective lens that collects observation light from the sample, a detection optical system that detects the observation light collected by the objective lens, and a retroreflective member that is arranged opposite the objective lens with the sample interposed therebetween and in which a plurality of very small reflective elements are arrayed. The objective lens and the illumination optical system are arranged below the sample in the direction of gravity.

Abstract: An ATR optical instrument condensing an infrared light to a sample-side surface of a ATR crystal to measure a total reflection absorption spectrum includes: an incident-side ellipsoidal mirror condensing the infrared light to the sample-side surface at an incident angle equal to or larger than a critical angle ?c inside; an exiting-side ellipsoidal mirror condensing a total reflection light from the sample-side surface; dichroic mirrors guiding an illumination light coaxially to the ellipsoidal mirrors; and a ZnS lens condensing a visible light from the sample-side surface to observe a contact state of the sample. The dichroic mirrors are configured to guide the illumination light to the ellipsoidal mirrors such that the illumination light is condensed to the sample-side surface at an angle less that a critical angle ?c? of the visible light. Accordingly, the ATR optical instrument becomes compact, and can visually observe the contact state of the sample surface.

Abstract: A wideband spectrograph apparatus includes a first spectrograph assembly and one or more subsequent spectrograph assemblies. Each subsequent spectrograph assembly is optically coupled to a previous spectrograph assembly and is configured to receive a cascading beam from one or more dispersion elements of the previous spectrograph assembly. The first spectrograph assembly is configured for detecting illumination in a first wavelength range and the one or more subsequent spectrograph assemblies are configured for detecting illumination in wavelength ranges different from the first or any previous wavelength ranges to provide simultaneous sampling of different spectral portions of an input beam.

Abstract: An ultraviolet measurement system includes a measurement device that is configured to be portable by a user, and measures ultraviolet information regarding an ultraviolet ray, and a display device that can perform communication with the measurement device, in which one of the measurement device and the display device includes a position acquisition unit that acquires position information indicating a position of either of the user and the measurement device, and a storage unit that stores the ultraviolet information measured by the measurement device in correlation with measurement position information which is position information of when the ultraviolet information is measured by the measurement device among pieces of position information acquired by the position acquisition unit, and in which the display device displays information based on the ultraviolet information and the measurement position information.

Abstract: A system for detecting blood pressure based on imaging photoplethysmography (iPPG) includes a first inward-facing head-mounted camera to capture images of a first region of interest located on the face below the eyes and above the lips (IMROI1) of a user, and a second inward-facing head-mounted camera to capture images of a second region of interest comprising a portion of a temple and/or forehead (IMROI2) of the user. The system further includes a computer to calculate a blood pressure value for the user based on first and second photoplethysmographic signals recognizable in IMROI1 and IMROI2.

Abstract: A fast-decaying, dense phosphor having relatively high light emission is described. Through a combination of material selection, growth and deposition technique, phosphor thin films are made that preserve the necessary light output when used in thin-films, unlike common fast phosphors, such as P-46, P-47, and also have an afterglow that decays much faster than common bright phosphors, such as P-43. Use of the phosphor is described in applications where acquiring many frames/images very quickly is required.

Abstract: A system for detecting blood pressure based on imaging photoplethysmography (iPPG) includes an inward-facing head-mounted camera to capture images of a first region of interest (IMROI1) that comprises a portion of exposed skin of the user's face, and an outward-facing head-mounted camera to capture images of a second region of interest (IMROI2) that comprises exposed skin on a hand of the user. The head-mounted cameras may be coupled to a frame of eyeglasses or smartglasses, and the system further includes a computer to calculate a blood pressure value for the user based on first and second photoplethysmographic signals recognizable in IMROI1 and IMROI2.

Abstract: A contactless dual-plane positioning method is disclosed. In this method, an X ray is provided. The X ray passes through a first test piece along a light incident axis. A scattering pattern generated by the X ray passing through the first test piece, and a scatting light intensity corresponding to the scattering pattern are obtained. According to the scattering light intensity, the first test piece is pivoted along a first axis or a second axis until the scattering intensity is greater than or equal to a predetermined intensity. At least three measurement distances between a second test piece and the first test piece are then obtained. According to the measurement distances, an included angle between the second test piece and the light incident axis is adjusted by pivoting the second test piece along a third axis or a fourth axis until the differences between any two measurement distances are less than a predetermined threshold value.

Abstract: A signal detection device according to one aspect of the present invention includes a receiver configured to receive a signal including at least a first signal component modulated by a first frequency and a second signal component modulated by a second frequency, and a detector configured to generate, using a base signal, a first reference signal to be used for detecting the first signal component and a second reference signal to be used for detecting the second signal component, perform lock-in detection on the signal received by the receiver using the first reference signal to obtain a first detection signal, perform lock-in detection on the signal received by the receiver using the second reference signal to obtain two second detection signals having different phases from each other, and change at least one of a frequency and a phase of each of the first and second reference signals to set one of the two second detection signals to zero.