76results about "Conversion screens" patented technology

X-ray scintillators based on amorphous organic metal halide hybrid films are demonstrated, which can be prepared via a facile solution processing with a non-crystalline organic halide salt reacting with metal halide at low temperature. The solution processed scintillators exhibit excellent scintillation properties, thermal stability, mechanical resilience, and processability.

A multi-component rare-earth garnet optical material containing at least three different rare-earth elements and optionally activator ions is described. The optical material includes a rare-earth garnet scintillator. A method for preparing powders, ceramics, and single crystals of the optical material is also described. Further, a radiation detector including a rare-earth garnet scintillator is described.

The present invention provides: a scintillator which is reduced in the intensity of the afterglow, while having increased luminous intensity; and a charged particle radiation apparatus. A scintillator according to the present invention is characterized in that: a base material, a buffer layer, a light emitting part and a first conductive layer are sequentially stacked in this order; the light emitting part contains one or more elements that are selected from the group consisting of Ga, Zn, In, Al, Cd, Mg, Ca and Sr; and a second conductive layer is provided between the base material and the light emitting part.

A ceramic scintillator array 1 according to an embodiment of the present invention is provided with a plurality of scintillator segments 2 and a reflective layer. The reflective layer contains a resin composition. The resin composition contains a transparent resin and an additive. Dibasic acid esters serve as the additive.

The invention relates to organic scintillators with improved characteristics in terms of transparency and response speed. More specifically, the scintillators of the invention use the chemical compounds of formula (M), also called fluorophores: (M) wherein: X and Y, independently of each other, are: H, aryl, naphthyl, biphenyl, tolyl, preferably 2-naphthyl, 1-naphthyl, 2-biphenyl, 4-tolyl; with the proviso that X and Y are never H at the same time; R1 and R2, independently of each other, are: aryl, arylalkyl, alkyl (also alkylene), with linear branched or cyclic chain C2-C12, preferably at least one of R1 and R2, or both, is C8H17.

A radiation detector includes: a sensor panel; a scintillator panel; and a resin frame provided across the sensor panel and the scintillator panel, in which the sensor panel has a mounting surface where the scintillator panel is mounted, the scintillator panel includes a support body having a first surface, a second surface on a side opposite to the first surface, and a first side surface connecting the first surface and the second surface to each other, and a scintillator layer formed on the first surface and containing a plurality of columnar crystals, the scintillator panel is mounted on the mounting surface such that the scintillator layer and the first surface face the mounting surface, and the scintillator layer has a second side surface extending so as to be positioned on the same plane as the first side surface.

This scintillator unit comprises: a support; a scintillator layer disposed on the support and including a plurality of columnar crystals; an optical functional layer disposed on an effective portion of the scintillator layer; and a moisture-proof layer integrally covering both the scintillator layer and the optical functional layer. The moisture-proof layer is in contact with the plurality of columnar crystals at an outer edge of the scintillator layer and enters gaps of the plurality of columnar crystals.

This scintillator panel comprises: a support layer; a scintillator layer disposed on the support layer and including a plurality of columnar crystals; an adhesive layer disposed on the scintillator layer; a release layer disposed on the adhesive layer and having releasability from the adhesive layer; and a first moisture-proof layer integrally covering an outer edge portion of the scintillator layer, an outer edge portion of the adhesive layer, and an outer edge portion of the release layer. Through use of this scintillator panel, the scintillator layer can be attached to another member when the scintillator panel is used, and the moisture-proof properties of the scintillator layer can be sufficiently secured when the scintillator panel is not in use.

A decrease and variations in dimensional accuracy due to deformation is suppressed.The scintillator array according to an embodiment includes a plurality of scintillator segments each including a sintered body of a rare earth oxysulfide phosphor, a first reflective layer interposed between adjacent scintillator segments so as to integrate the scintillator segments, and a second reflective layer located on a surface side of the scintillator segments on which X-rays are incident. The amount of deformation of the corners of the second reflective layer is 20 μm or smaller.

A Purcell enhanced metamaterial scintillator structure comprises a conducting structure and a dielectric structure disposed adjacent to the conducting structure. The dielectric structure comprises a structure of scintillating nanoparticles.

This enables higher resolution and higher sensitivity in X-ray line sensors. [Solution] A scintillator array 1 is composed of a plurality of scintillator pixels 2 that convert X-rays into light, wherein the plurality of scintillator pixels 2 are arranged in a straight line by partition walls 3 at equal intervals, and the widths of the first side walls 4 and the second side walls 5 at both ends are different, and when two scintillator arrays 1 are placed on top of each other in opposite directions, the scintillator pixels 2 of one scintillator array 1 and the scintillator pixels 2 of the other scintillator array 1 are offset by half a pixel.

Embodiments of the present application disclose a single-atom manipulation system, a control method and an electronic device. The single-atom manipulation system comprises: an atomic cooling device configured to form an MOT atomic group, wherein the MOT atomic group is capable of generating atomic fluorescence of a first target wavelength; an atomic trapping device, wherein the atomic trapping device comprises a laser source and a strong focusing lens, the laser source emits a target laser beam of a second target wavelength, the target laser beam passes through the strong focusing lens to form an optical tweezer array to trap the MOT atomic group; and an imaging device, wherein the imaging device is sequentially provided with a filter, a noise fluorescence shielding device, a plano-convex lens and an imaging unit in a reflection direction of the focused atomic fluorescence, and the noise fluorescence shielding device is configured to shield noise fluorescence generated by the atomic cooling device.

The present invention provides a defect-controlled lutetium silicate crystal and a method for producing the same. A lutetium silicate crystal according to an embodiment of the present invention is characterized by containing at least lutetium (Lu), silicon (Si), oxygen (O), and hydrogen (H), having the same crystal structure as a crystal represented by Lu2SiO5, and having an absorption peak derived from an OH group in a wave number range of 3000 cm-1 or more and 3800 cm-1 or less in an infrared absorption spectrum.

A scintillator unit that can reduce crosstalk when the scintillator unit includes a plurality of scintillators and a radiation detector are provided. More specifically, a scintillator unit includes a reflective layer between a plurality of scintillators and the plurality of scintillators, wherein an adhesive layer and a low-refractive-index layer with a lower refractive index than the adhesive layer are located in this order on the scintillators between the scintillators and the reflective layer.

A ceramic scintillator of an embodiment includes a sintered body of a gadolinium oxysulfide phosphor containing praseodymium as a main activator. When a body color of the sintered body is represented by chromaticity coordinates (x, y) based on a CIE1931 chromaticity value, the sintered body has a body color satisfying 0.4≤x≤0.505 . . . (1) and 0.83x+0.075≤y≤0.83x+0.095 . . . (2). The ceramic scintillator of the embodiment is obtained by a method for manufacturing a ceramic scintillator, the method including a heat treatment step of causing a reaction gas containing oxygen and sulfur to react with the sintered body. A heat treatment time in the heat treatment step is 1 hour or more and 50 hours or less.

A scintillator panel of the present application includes: a first flexible support having a first surface and a second surface opposite to the first surface; a scintillator layer formed on the first surface and including a plurality of columnar crystals; a second flexible support provided on the second surface; an inorganic layer provided on the second flexible support in a manner interposed between the second surface and the second flexible support; and a first adhesive layer bonding the second surface and the inorganic layer to each other. A radiation detector of the present application includes: a scintillator panel; and a sensor panel including a photoelectric conversion element, the scintillator panel being provided on the sensor panel in a manner that the first surface is on the side of the sensor panel relative to the second surface.

The invention relates to a method for producing a supported scintillator for particle radiation, and to a supported scintillator. The supported scintillator comprises, as a substrate, a plastics film and a layer of scintillator powder which is adhesively bonded to the substrate. In the method according to the invention, the scintillator powder is applied in excess to an adhesive layer on the plastics film while the plastics film is caused to vibrate with vibrations at ultrasonic frequency. The scintillator powder is then pressed on, after which non-adhering scintillator powder is removed. The supported scintillator has a transmission of τ ≥ 0.99.

A radiation detector includes a sensor panel having a light-receiving surface, a first scintillator panel and a second scintillator panel configured on the light-receiving surface in a state of being adjacent to each other along the light-receiving surface, and a moisture-proof layer. The first scintillator panel has a first substrate and a first scintillator layer including a plurality of columnar crystals. The second scintillator panel has a second substrate and a second scintillator layer including a plurality of columnar crystals. The first scintillator layer reaches at least a first portion of the first substrate. The second scintillator layer reaches at least a second portion of the second substrate. The moisture-proof layer is continuously provided across the first scintillator panel and the second scintillator panel.

This scintillator comprises: a support substrate; and a light-emitting layer that is formed from ZnO, is disposed on the support substrate, and emits light in response to the incidence of charged particles or photons. The light-emitting layer has a plurality of first layers having a first impurity concentration, and a plurality of second layers alternately laminated with the plurality of first layers and having a second impurity concentration lower than the first impurity concentration.

To provide a scintillator panel capable of optimizing contact with the light receiving surface of a sensor panel and suppressing the occurrence of a crack in a scintillator layer, a method for manufacturing the scintillator panel, a radiation detector including the scintillator panel, and a method for manufacturing the radiation detector.SOLUTION: A scintillator panel 1 includes a support substrate 2 which has flexibility, a scintillator layer 3 which includes a plurality of columnar crystals 30, and an intermediate layer 4 which is arranged between the support substrate 2 and the scintillator layer 3. The plurality of columnar crystals 30 include a plurality of first end parts 31 on the side of the support substrate 2 and a plurality of second end parts 32 on the side opposite to the support substrate 2. Each of the plurality of first end parts 31 becomes thinner toward the side of the support substrate 2. Each of the plurality of second end parts 32 has an end surface 32a along a plane. A part of the intermediate layer 4 is arranged at least in an area R between the plurality of first end parts 31.SELECTED DRAWING: Figure 1

The present disclosure discloses a method for growing a crystal with a short decay time. According to the method, a new single crystal furnace and a temperature field device are adapted and a process, a ration of reactants, and growth parameters are adjusted and / or optimized, accordingly, a crystal with a short decay time, a high luminous intensity, and a high luminous efficiency can be grown without a co-doping operation.

According to one embodiment, a method of correcting astigmatism of a charged particle beam and adjusting a numerical aperture is described. A dual anastigmator is used to correct astigmatism and adjust numerical aperture. The dual anastigmators have a first anastigmator and a second anastigmator. The method includes correcting astigmatism of the charged particle beam using a second anastigmator of the dual anastigmators; and adjusting the numerical aperture of the charged particle beam using a first anastigmator of the dual anastigmators. The first anastigmators and the second anastigmators are arranged at intervals along the optical axis.

To improve the reliability of scintillator structures. [Solution] The scintillator structure for X-ray detection that constitutes the X-ray detector includes a resin and a phosphor. The phosphor includes gadolinium sulfide. The resin is an epoxy resin comprising a main component, a curing agent, and a curing catalyst. The curing agent is a phthalic anhydride-based curing agent. The resin has an isocyanurate ring as its backbone, and after irradiation with X-rays at a dose of 100 kGy, the total light transmittance of the resin for light with a wavelength of 542 nm is 80% or more.

To improve reliability of a scintillator structure.SOLUTION: A scintillator structure for detecting an X-ray forming an X-ray detector includes: a plurality of cells; and a reflection layer covering the cell layers. Each cell includes a resin and a phosphor. The resin is an epoxy resin which has an isocyanurate ring in a bone structure. Also, a drop rate of total light transmittance for light with a wavelength of 542 nm after an X-ray with a dosage of 100 kGy is radiated is less than 8%. The resin contains a hardening agent as a non-aromatic group which does not chemically comprise a carbon double bond.SELECTED DRAWING: Figure 1

A scintillator screen for use in backscatter and transmission X-ray detectors is provided. The scintillator screen includes at least a phosphor layer comprising a plurality of phosphor particles preferably having a mean particle size ranging from 30 μm to 70 μm, and preferably from 30 μm to 50 μm. Alternatively, each of the plurality of phosphor particles has a particle size in a range of 30 μm to 70 μm, and preferably from 30 μm to 50 μm. A thickness of the scintillator layer ranges from 100 μm to 4000 μm while packing fraction of phosphor weight to total weight of phosphor and a binder ranges from 50% to 90%. The phosphor layer preferably includes europium-doped barium fluorochloride (BaFCl:Eu) for use in a backscatter X-ray detector and preferably includes Gadolinium Oxysulfide (Gd2O2S) for use in a transmission X-ray detector.

Reliability of a scintillator structure is improved. The scintillator structure includes a plurality of cells and a reflective layer covering the plurality of cells. Here, each of the plurality of cells includes a resin and a phosphor, and the resin has a decrease rate of a total light transmittance that is less than 8% with respect to light having a wavelength of 542 nm after X-ray irradiation of a dose of 100 kGy.