Abstract: A scintillator unit with less light leakage from a scintillator to an adhesive layer and a radiation detector that can improve sensitivity to radiation and the resolution of an image to be formed. Specifically disclosed is a scintillator unit including an adhesive layer between a scintillator and a supporting member and a low-refractive-index layer with a lower refractive index than the adhesive layer between the scintillator and the adhesive layer.

Abstract: A sensor for spectroscopic measurement of alpha and beta particles includes first and second layers, a photomultiplier, and an analyzer. A first material of the first layer scintillates a first stream of photons for each of the alpha particles. However, the beta particles pass through the first layer. A second material of the second layer scintillates a second stream of photons for each of the beta particles, but passes the first stream of photons for each alpha particle. The photomultiplier amplifies the first and second streams of photons for the alpha and beta particles into an electrical signal. The electrical signal includes a respective pulse for each of the alpha and beta particles. From the electrical signal, the analyzer determines a respective energy of each of the alpha and/or beta particles from a shape of the respective pulse for each of the alpha and beta particles.

Abstract: Reflective luminescent markings on a road or sign surface are formed by applying onto the surface a base material which is liquid in an initial state for application and sets or cures to form a solid layer after application where the base material contains a fine/medium filler material of glass ground from recycled materials in a rotary mill. Coarse material from the grinder is separated out and supplied as a separate material to be applied onto the surface of the layer of base material and fine ground glass. The base material is connected or impregnated with a luminescent material such as photo luminescent 2 4 6 trichlorophenyl in a binder such as polyurea.

Abstract: An intermittent flashing decoy having a housing unit, a power source, a motor, a cycler, a switch, and a flasher, wherein the motor, power source, and cycler are substantially housed within the housing unit, and wherein the power source is capable, when the apparatus is turned on via the switch, of powering the motor off and on at random as controlled by the cycler, which is an intermittent timer chip, to manipulate the flasher as to create intermittent “flashes” as flasher rotates and reflects light such as sunlight. A system of two or more intermittent flashing decoys wherein each decoy is controlled by an intermittent timer chip, the cycler, so that no pattern of flashing occurs between any two decoys.

Abstract: The disclosed flow cytometer includes a wavelength division multiplexer (WDM). The WDM includes an extended light source providing light that forms an object, a collimating optical element that captures light from the extended light source and projects a magnified image of the object as a first light beam, and a first focusing optical element configured to focus the first light beam to a size smaller than the object of the extended light source to a first semiconductor detector. The disclosed flow cytometer further includes a composite microscope objective to direct light emitted by a particle in a flow channel in a viewing zone of the composite microscope to the extended light source, a fluidic system and a peristaltic pump configured to supply liquid sheath and liquid sample to the flow channel, and a laser diode system to illuminate the particle in the flow channel.

Abstract: A wave guide face plate for transmitting an image formed in a scintillating material included as part of a transmitting medium is disclosed. The transmitting medium includes a random distribution of different refractive index regions in two orthogonal dimensions, and an essentially consistent refractive index in a third orthogonal dimension. The third orthogonal direction is aligned with a transmission axis of the wave transmitter extending from an input location to a wave detector location. The transmission efficiency of the wave guide faceplate is improved in situations where the entry angle of the input radiation is different from the axis of the wave transmitter as compared to conventional faceplates.

Abstract: A method according to embodiments of the invention includes disposing a support layer (32) on a surface of a wavelength converting ceramic wafer (30). The wavelength converting ceramic wafer and the support layer are diced (42) to form wavelength converting members. A wavelength converting member is attached to a light emitting device. After attaching the wavelength converting member to the light emitting device, the support layer is removed.

Abstract: Described herein are devices, compositions, and methods for improving color discernment.

Abstract: The scintillator panel includes a support, a reflective layer on the support, and a scintillator layer formed on the reflective layer by deposition. The reflective layer includes light-scattering particles and a binder resin. A specific region of the reflective layer is defined by a resin or includes light-scattering particles having a specific area average particle diameter, or the reflective layer has a specific arithmetic average roughness.

Abstract: A patterned scintillator panel including an extruded scintillator layer comprising a thermoplastic polyolefin and a scintillator material, wherein the scintillator layer comprises a pattern. Also disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by melt extrusion, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer. Further disclosed is a method of making a patterned scintillator panel including forming a scintillator layer by injection molding, the scintillator layer comprising thermoplastic particles comprising a thermoplastic polyolefin and a scintillator material; and patterning the scintillator layer.

Abstract: A radiation detection apparatus can have optical coupling material capable of absorbing wavelengths of light within approximately 75 nm of a wavelength of scintillating light of a scintillation member of the radiation detection apparatus. In an embodiment, the optical coupling material can be disposed between a photosensor of the radiation detection apparatus and the scintillation member. In a particular embodiment, the composition of the optical coupling material can include a dye. In an illustrative embodiment, the dye can have a corresponding a* coordinate, a corresponding b* coordinate, and an L* coordinate greater than 0. In another embodiment, the optical coupling material can be disposed along substantially all of a side of the photosensor.

Abstract: Disclosed is a method of manufacturing a flat panel detector such that the surface on the side of a fluorescent body layer of a scintillator panel which has the fluorescent body layer comprising a column crystal on the supporting body, is coupled to the planar light receiving element surface of a light-receiving element, comprising: a step of manufacturing the scintillator panel which has a larger area than that of the planar light receiving element surface; a step of trimming the edges of the scintillator panel, obtained by the step of manufacturing the scintillator panel, to correspond to the area of the planar light receiving element surface; and a step of coupling the edge-trimmed scintillator panel to the planar light receiving element surface, thus providing a flat panel detector which has an excellent productivity and that can be made small in size without non-image area.

Abstract: An apparatus for detecting ionizing radiation from a source. A detector is disposed relative to the source to receive the ionizing radiation. The ionizing radiation causes ionization and/or excitation in the detector, wherein an optical property of the detector is altered in response to the ionization and/or excitation. A source of coherent probing light is disposed relative to the detector to probe the detector. The detector outputs the probing light, wherein the output light is modulated in response to the altered optical property. A receiver receives the output light and detects modulation in the output light.

Abstract: An extreme ultraviolet light source apparatus generating an extreme ultraviolet light from plasma generated by irradiating a target material with a laser light within a chamber, and controlling a flow of ions generated together with the extreme ultraviolet light using a magnetic field or an electric field, the extreme ultraviolet light source apparatus comprises an ion collector device collecting the ion via an aperture arranged at a side of the chamber, and an interrupting mechanism interrupting movement of a sputtered particle in a direction toward the aperture, the sputtered particle generated at an ion collision surface collided with the ion in the ion collector device.

Abstract: A radiation detector includes two reflecting plate lattices that are combined into a single reflecting plate lattice. The use of such a structure simplifies the manufacturing of a scintillator. The radiation detector reduces the number of reflecting plate lattices that are stacked when manufacturing the scintillator, enabling the scintillator to be manufactured easily. Moreover, the number of reflecting plate lattices to be manufactured is reduced, reducing commensurately the number of components required for manufacturing the scintillator. The scintillator may be manufactured more easily and an inexpensive radiation detector may be obtained.

Abstract: The present invention relates to a luminescent solar concentrator for a solar cell, comprising a collector with a luminescent substrate, and a wavelength selective filter, wherein the wavelength selective filter is arranged above the surface of the collector, wherein the luminescent substrate has an absorption edge which corresponds to a wavelength ?ex and emits radiation around a wavelength ?em, wherein the selective filter has a refractive-index contrast ?n with a negative or zero dispersion, and wherein the wavelength selective filter is designed to keep the emitted radiation inside the collector while shifting the reflection band of the incident radiation to angles ?25° and/or to narrow the reflection band to a range of ?10°.

Abstract: An object of the invention is to provide a scintillator panel which exhibits excellent cuttability and can be cut without the occurrence of problems such as the separation of a scintillator layer and which can give radiographic images such as X-ray images with excellent sensitivity and sharpness. The scintillator panel of the invention includes a reflective layer and a scintillator layer formed by deposition on a support, and the reflective layer includes light-scattering particles and a specific binder resin and has a specific thickness.

Abstract: An optical fiber can include a polymer and a scintillation quencher. The optical fiber can be a member of a radiation sensor or radiation detecting system. The scintillation quencher can include a UV-absorber or a scintillation resistant material. In one embodiment, the radiation sensor includes a scintillator that is capable of generating a first radiation having a wavelength of at least about 420 nm; and a scintillation quencher is capable of absorbing a second radiation having a wavelength of less than about 420 nm. The optical fiber including a scintillation quencher provides for a method to detect neutrons in a radiation detecting system.

Abstract: The invention relates to a material that absorbs electromagnetic waves, characterized in that it includes at least one textile layer printed using at least one conductive ink in accordance with at least one pattern including printed areas and non-printed areas in an arrangement suitable for a corresponding range of absorption frequencies.

Abstract: The invention proposes a device (10) for characterizing an ionizing radiation used in an ambient medium having a first refraction index (n1), the device (10) comprising: a scintillator material (12) delimited by a wall (28), the scintillator material (12) generating photons under the effect of an ionizing radiation, the scintillator material (12) having a second refraction index (n2), and a guide layer (16) in contact with at least part of the wall (28), the guide layer (16) guiding, toward a predetermined zone, the photons generated by the scintillator material (12) and having an angle of incidence relative to the part of the wall (28) greater than or equal to the arcsin of the ratio of the first refraction index (n1) to the second refraction index (n2).

Abstract: A radiation detection system can include optical fibers and a material disposed between the optical fibers. In an embodiment, the material can include a fluid, such as a gas, a liquid, or a non-Newtonian fluid. In another embodiment, the material can include an optical coupling material. In a particular embodiment, the optical coupling material can include a silicone rubber. In still another embodiment, the optical coupling material has a refractive index less than 1.50. In still another embodiment, the radiation detection system can have a greater signal:noise ratio, a light collection efficiency, or both as compared to a conventional radiation detection system. Corresponding methods of use are disclosed that can provide better discrimination between neutrons and gamma radiation.

Abstract: In an embodiment, an X-ray detector has a transmissive fluorescence generating portion, and a reflective fluorescence generating portion. The transmissive and reflective fluorescence generating portions have at least one of an intensifying screen having a phosphor layer that contains praseodymium-activated gadolinium oxysulfide phosphor particles in which a ratio of particles having a particle diameter falling in ±30% of a center particle diameter is 45% by volume or more and their filling rate is 60% by volume or more, and an intensifying screen having a phosphor layer that contains europium-activated barium fluorochloride phosphor particles in which a ratio of particles having a particle diameter falling in ±30% of a center particle diameter is 45% by volume or more and their filling rate is 45% by volume or more.

Abstract: A scintillator panel including: a plate-like substrate; a grid-like barrier rib provided on the substrate; and a scintillator layer composed of a phosphor filled in cells divided by the barrier rib, wherein the barrier rib is formed of a material which is mainly composed of a low-melting-point glass containing 2 to 20% by mass of an alkali metal oxide. The scintillator panel is provided with a narrow barrier rib with high accuracy in a large area, and the scintillator panel has high luminous efficiency, and provides sharp images.

Abstract: The disclosure relates to a scintillation pixel array, a radiation sensing apparatus, a scintillation apparatus, and methods of making a scintillation pixel array wherein scintillation pixels have beveled surfaces and a reflective material around the beveled surfaces. The embodiments described herein can reduce the amount of cross-talk between adjacent scintillation pixels.

Abstract: An apparatus comprises a plurality of radiation conversion elements (32) that convert radiation to light, and a reflector layer (34) disposed around the plurality of radiation conversion elements. The plurality of radiation conversion elements may consist of two radiation conversion elements and the reflector layer is wrapped around the two radiation conversion elements with ends (40, 42) of the reflector layer tucked between the two radiation conversion elements. The reflector layer (34) may include a light reflective layer (50) having reflectance greater than 90% disposed adjacent to the radiation conversion elements when the reflector layer (34) is disposed around the plurality of radiation conversion elements, and a light barrier layer (52).

Abstract: An extreme ultraviolet light source apparatus generating an extreme ultraviolet light from plasma generated by irradiating a target material with a laser light within a chamber, and controlling a flow of ions generated together with the extreme ultraviolet light using a magnetic field or an electric field, the extreme ultraviolet light source apparatus comprises an ion collector device collecting the ion via an aperture arranged at a side of the chamber, and an interrupting mechanism interrupting movement of a sputtered particle in a direction toward the aperture, the sputtered particle generated at an ion collision surface collided with the ion in the ion collector device.

Abstract: A radiation detection apparatus can have optical coupling material capable of absorbing wavelengths of light within approximately 75 nm of a wavelength of scintillating light of a scintillation member of the radiation detection apparatus. In an embodiment, the optical coupling material can be disposed between a photosensor of the radiation detection apparatus and the scintillation member. In a particular embodiment, the composition of the optical coupling material can include a dye. In an illustrative embodiment, the dye can have a corresponding a* coordinate, a corresponding b* coordinate, and an L* coordinate greater than 0. In another embodiment, the optical coupling material can be disposed along substantially all of a side of the photosensor.

Abstract: A method and apparatus for manufacturing magnetic storage media is provided. A structural substrate is coated with a magnetically active material, and a magnetic pattern is formed in the magnetically active material by treating portions of the material with energy from a laser, e-beam, or focused ion beam. The beam may be divided into a packet of beamlets by passing the beam through a divider, which may be a diffraction grating for laser energy, a thin film single crystal for electrons, or a perforated plate for ions, or the beam may be generated by an array of emitters. The beamlets are then focused to a desired dimension and distribution by optics or electric fields. The resulting beam packet may be shaped further by passing through an aperture of any desired shape. The resulting beam may be applied sequentially to exposure zones to treat an entire substrate or plurality of substrates.

Abstract: A scintillator panel 1 and a radiation image sensor 10 which can achieve higher resolution and higher luminance are provided. The scintillator panel 1 comprises a radiation transmitting substrate 3, adapted to transmit a radiation therethrough, having entrance and exit surfaces 3a, 3b for the radiation; a scintillator 4, adapted to generate light in response to the radiation incident thereon, comprising a plurality of columnar bodies grown as crystals on the exit surface 3b; an FOP 6, arranged on an opposite side of the scintillator 4 from the exit surface 3b, for propagating the light generated by the scintillator 4; and a double-sided tape 5, disposed between the scintillator 4 and the FOP 6, for adhesively bonding the scintillator 4 and the FOP 6 together and transmitting therethrough the light generated by the scintillator 4.

Abstract: In an embodiment, an X-ray detector has a transmissive fluorescence generating portion, and a reflective fluorescence generating portion. The transmissive and reflective fluorescence generating portions have at least one of an intensifying screen having a phosphor layer that contains praseodymium-activated gadolinium oxysulfide phosphor particles in which a ratio of particles having a particle diameter falling in ±30% of a center particle diameter is 45% by volume or more and their filling rate is 60% by volume or more, and an intensifying screen having a phosphor layer that contains europium-activated barium fluorochloride phosphor particles in which a ratio of particles having a particle diameter falling in ±30% of a center particle diameter is 45% by volume or more and their filling rate is 45% by volume or more.

Abstract: Methods for pre-treating packaging materials of particular composition for use in conjunction with a scintillation crystal are disclosed. The packaging materials may comprise a reflecting material, an elastomer, a reflecting fluorocarbon polymer, a polymer or elastomer loaded with a reflecting inorganic powder (including a reflecting inorganic powder comprising a high reflectance material selected from the group comprising Al2O3, TiO2, BN, MgO, BaSO4 and mixtures thereof), or a highly reflective metal foil selected from the group comprising Ag and Al that is chemically compatible with the scintillator crystal. The scintillator crystal may comprise a crystal selected from the group comprising NaI(Tl), LaBr3:Ce, La—Cl3:Ce, La-halides, and La-mixed halides.

Abstract: A scintillator panel 1 and a radiation image sensor 10 in which characteristics can be changed easily at the time of manufacture are provided. The scintillator panel 1 comprises a scintillator 3 having an entrance surface 3a for a radiation; a FOP 2, arranged on an opposite side of the scintillator 3 from the entrance surface 3a, for transmitting the light generated by the scintillator 3; and a resin layer 5, formed from a resin containing a color material on the entrance surface 3a side of the scintillator 3, for performing at least one of absorption and reflection of the light generated by the scintillator 3.

Abstract: A device for detecting ionizing radiation includes a radiation interaction region configured to generate light in response to an interaction with the ionizing radiation, an optical gain medium region in optical communication with the radiation interaction region and configured to amplify the light, and an energy source coupled to the optical gain medium region and configured to maintain a state of population inversion in the optical gain medium region. The optical gain medium region has an emission wavelength that corresponds with a wavelength of the light generated by the radiation interaction region.

Abstract: An optical fiber can include a polymer and a scintillation quencher. The optical fiber can be a member of a radiation sensor or radiation detecting system. The scintillation quencher can include a UV-absorber or a scintillation resistant material. In one embodiment, the radiation sensor includes a scintillator that is capable of generating a first radiation having a wavelength of at least about 420 nm; and a scintillation quencher is capable of absorbing a second radiation having a wavelength of less than about 420 nm. The optical fiber including a scintillation quencher provides for a method to detect neutrons in a radiation detecting system.

Abstract: A scintillator for converting radiation into light includes a first conversion layer being a planar phosphor and a second conversion layer having columnar phosphors. To form the columnar phosphors of the second conversion layer, optical fibers of a fiber optic plate are filled with a phosphor paste. The columnar phosphors produce a light guide effect. The phosphors of both the first and second conversion layers contain GOS particles dispersed in a resin binder.

Abstract: An apparatus comprises a plurality of radiation conversion elements (32) that convert radiation to light, and a reflector layer (34) disposed around the plurality of radiation conversion elements. The plurality of radiation conversion elements may consist of two radiation conversion elements and the reflector layer is wrapped around the two radiation conversion elements with ends (40, 42) of the reflector layer tucked between the two radiation conversion elements. The reflector layer (34) may include a light reflective layer (50) having reflectance greater than 90% disposed adjacent to the radiation conversion elements when the reflector layer (34) is disposed around the plurality of radiation conversion elements, and a light barrier layer (52).

Abstract: The invention provides a method for optimizing the spectroscopy performance of a spectroscopy scintillator by surrounding the scintillator by a reflector material, performing a scan or more sectors measuring resolution and light output at three or more axial locations on the crystal, where at least one location is close to the PMT or below the crystal (near the PMT) at least one location is at the end away from the PMT of the scintillator), and adjusting the surface finish of the crystal and/or the reflector to obtain equal light output and optimal resolution over the length and different azimuth of the crystal.

Abstract: High-power excimer lasers are assembled with individually replaceable optical module subsystems containing consumable optical components. Windows formed in the enclosures of the optical modules incorporate a fluorescent material for converting ultraviolet light scattered from the components of the optical module into visible light emanating from the windows. Changes in the amount or location of the visible light emanating from the windows are interpreted as indications of the degradation in the performance of the optical modules.

Abstract: Infrared imaging at wavelengths longer than the silicon bandgap energy (>1100 nm) typically require expensive focal plane arrays fabricated from compound semiconductors (InSb or HgCdTe) or use of slower silicon microbolometer technology. Furthermore, these technologies are available in relatively small array sizes, whereas silicon focal plane arrays are easily available with 10 megapixels or more array size. A new technique is disclosed to up convert infrared light to wavelengths detectable by silicon focal plane arrays, or other detector technologies, thereby enabling a low-cost, high pixel count infrared imaging system.

Abstract: An extreme ultraviolet light source apparatus generating an extreme ultraviolet light from plasma generated by irradiating a target material with a laser light within a chamber, and controlling a flow of ions generated together with the extreme ultraviolet light using a magnetic field or an electric field, the extreme ultraviolet light source apparatus comprises an ion collector device collecting the ion via an aperture arranged at a side of the chamber, and an interrupting mechanism interrupting movement of a sputtered particle in a direction toward the aperture, the sputtered particle generated at an ion collision surface collided with the ion in the ion collector device.

Abstract: A radiation detector is disclosed for X- or gamma rays. In at least one embodiment, the radiation detector includes an array of scintillation detectors and a reflector layer separating these from one another. The reflector layer includes a binder matrix and particles of a light-reflecting material embedded therein, the surfaces of the particles being coated at least partially with a dispersant.

Abstract: Described herein is a columnar structure on a transparent substrate that incorporates emitting, light-guiding, dielectric, and conduction elements. At least one emitting element of the columnar structure is a column that conducts and/or emits a particle flux, with the surface of one butt-end of the column facing the inside of the substrate and contacting it immediately or indirectly, and the surface of the other butt-end enabling the passage of emission exciting particles into the column.

Abstract: A security device for authenticating bank notes, documents and other items, comprises a luminescent material for producing luminescent radiation of first and second wavelengths. The security device includes an optically variable structure for controlling emission of luminescent radiation of at least one of the first and second wavelengths from the security device, the security device being arranged to permit, from an area of the optically variable structure, emission of luminescence of the first and second wavelengths from the security device. The optically variable structure causes the relative emissivity of the security device for luminescent radiation of the first and second wavelengths to change with a change in emission angle, so that the security device produces an angle-dependent colour shift in the emitted luminescent radiation.

Abstract: A wavelength conversion chip is formed by depositing a wavelength conversion material on a substrate to form a layer, removing the resulting wavelength conversion layer from the substrate and then segmenting the wavelength conversion layer into a plurality of wavelength conversion chips. The wavelength conversion material can be annealed by thermal annealing or radiation annealing to increase the wavelength conversion efficiency of the chips or to sinter the wavelength conversion material to form a ceramic material. Optical coatings, vias, light extraction elements, electrical connections or electrical bond pads can be fabricated on the wavelength conversion chips.

Abstract: High-power excimer lasers are assembled with individually replaceable optical module subsystems containing consumable optical components. Windows formed in the enclosures of the optical modules incorporate a fluorescent material for converting ultraviolet light scattered from the components of the optical module into visible light emanating from the windows. Changes in the amount or location of the visible light emanating from the windows are interpreted as indications of the degradation in the performance of the optical modules.

Abstract: A substrate for detecting samples includes; a body, and a plurality of micro lenses arranged on the body and configured for attachment to at least one sample, wherein the at least one sample emits fluorescent light, and wherein the plurality of micro lenses condense the fluorescent light emitted from the at least one sample via refraction.

Abstract: A method of forming a scintillator device includes inserting a window into a lumen of a window support ring. The window support ring has an annular structure defining the lumen. The lumen extends between first and second ends of the window support ring. The method also includes inserting a scintillator material into a cavity of a housing defined by an annular sidewall of the housing. The housing has an anterior end and a posterior end. The sidewall defines an opening at the anterior end of the housing. The scintillator material is inserted into the cavity via the opening. The method further includes adhering the window to a front face of the scintillator material and coupling the first end of the window support ring to the annular sidewall of the housing at the anterior end to close the opening.

Abstract: A computed radiography plate including a substrate is provided. The computed radiography plate also includes at least one phosphor layer disposed above the substrate. The computed radiography plate also includes a protective layer disposed above the phosphor layer. The computed radiography plate further includes multiple patterns inscribed within at least one of the phosphor layer, the protective layer or the substrate.

Abstract: A radiation detection apparatus includes an optical detector disposed on a substrate and having a plurality of photoelectric conversion elements which convert light into an electrical signal, and a scintillator layer disposed on the optical detector and having a columnar crystal structure which converts radiation into light, wherein the concentration of an activator of the scintillator layer is higher at the radiation-incident side opposite the optical detector and is lower at the optical detector side. The scintillator panel includes the substrate and the scintillator layer disposed on the substrate, wherein the concentration of the activator of the scintillator layer is higher at the radiation-incident side and is lower at the light-emission side.

Abstract: For a radiation image converting panel according to the present invention, a converting portion that converts a radiation image to an optical image is formed on a support for which a dielectric multilayer film is formed on a metal reflector, and the dielectric multilayer film includes at least a first dielectric layer that is in contact with the metal reflector and a second dielectric layer that is formed on the first dielectric layer and has a higher refractive index than that of the first dielectric film layer to light emitted by the converting portion.