93results about "X-ray/infra-red processes" patented technology

The present invention discloses a method for preparing an X-ray fluorescent screen and the X-ray fluorescent screen thereof. The preparation method comprises the following steps: S1, pretreatment: cleaning and drying a microchannel structure; the microchannel structure is provided with a plurality of through microchannels, and the microchannel structure is made of glass; S2, microchannel coating: coating the sidewalls of the microchannels with a reflective film; S3, preparing a suspension: mixing fluorescent material particles, a carrier solvent, and a surfactant, and dispersing them to prepare a suspension; S4, filling the microchannels; S5, repeating the filling; S6, post-treatment: cleaning the surface of the microchannel structure and encapsulating it; the X-ray fluorescent screen is prepared using the above preparation method; the X-ray fluorescent screen comprises a microchannel structure, the microchannel structure is provided with a plurality of through microchannels arranged in an array, and the microchannels are filled with fluorescent material particles. The present invention fills the glass microchannel structure with fluorescent material particles to improve the resolution and fluorescence transmission efficiency of the X-ray fluorescent screen.

To improve reliability of a scintillator structure.SOLUTION: A scintillator structure for X-ray detection forming an X-ray detector, includes a resin and a fluorescent substance. The fluorescent substance includes gadolinium oxysulfide. The resin is an epoxy resin including a main agent, a hardener, and a hardening catalyst. The hardener is a phthalic anhydride-based hardener. The resin has an isocyanurate ring in a skeleton, and after radiation of X-ray whose radiation dose is 100 kGy, the whole light transmittance of the resin to light having a wavelength of 542 nm is 80% or more.SELECTED DRAWING: Figure 1

To solve such a problem that a scintillator array with less warpage and variations in the outer shape dimension is demanded while the resolution of a diagnostic image of a radiation detector has been increased.SOLUTION: A scintillator array includes: a structure having scintillator segments and a first reflective layer, the first reflective layer surrounding each of the scintillator segments and being provided between the scintillator segments arrayed in the vertical direction of the scintillator segments and between the scintillator segments arrayed in the lateral direction of the scintillator segments and being configured to reflect light; and a layer provided so as to be in contact with the surface of the structure and having a second reflective layer being configured to reflect light. The first reflective layer protrudes from the surface of the structure between the scintillator segments arrayed in the vertical direction and between the scintillator segments arrayed in the lateral direction.SELECTED DRAWING: Figure 1

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.

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.

Provided is a scintillator panel including a substrate, grid-like barrier ribs formed on the substrate, and a phosphor layer in a cell separated by the barrier ribs, in which the barrier rib includes on its surface in the following order a metallic reflective layer, and an inorganic protective layer mainly containing a nitride.

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.

The primer layer (104) with improved reflectivity and heat insulation properties is provided for use in the microencapsulated thermal imaging sheet (100). The primer layer having a polymer binder, white fine particles in an amount of about 3 to about 60% by weight based on the total weight of the primer layer, a primer substrate (102), and hollow fine particles improves the reflectivity, color development, color density, and heat insulation of the microcapsule (108) imaging sheet containing it. The black backcoat (105) applied to the substrate on the opposite side of the primer layer further enhances the Dmax and E of the microcapsule imaging sheet and prevents premature exposure of the microcapsule imaging sheet in the laminated media. 10 ​

A photosensitive resin composition film, containing (A) a resin, (B) an epoxy compound and / or an oxetane compound, and (C) a photo-cationic polymerization initiator, wherein a transmittance Tα (%) per unit film thickness at a wavelength of 405 nm on one surface thereof and a transmittance Tβ (%) per unit film thickness at a wavelength of 405 nm on the other surface thereof satisfy formula (1), which is Tα > Tβ, and with respect to the thickness of the photosensitive resin composition film, a content C10 (mass%) of the photo-cationic polymerization initiator (C) at a depth of 10% from the surface on the side where the transmittance per unit film thickness at a wavelength of 405 nm is Tα (%) and a content C90 (mass%) of the photo-cationic polymerization initiator (C) at a depth of 90% from said surface satisfy formula (2) below. Provided is a photosensitive resin composition film capable of forming a high aspect ratio pattern. (2): 0.050 ≤ C10 / C90 ≤ 0.85

A photographic film is formed by combining panchromatic black and white emulsion with a color filter array to produce a full color image using only black and white film and processing.

A ceramic scintillator according to an embodiment of the present invention is provided with a sintered body of a gadolinium oxysulfide phosphor containing praseodymium as a main activator. When the 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 the following formulae (1) and (2). A ceramic scintillator according to an embodiment is obtained by a method for producing a ceramic scintillator, the method comprising a heat treatment step for reacting a reactant gas containing oxygen and sulfur with the sintered body. The heat treatment time in the heat treatment step is from 1 hour to 50 hours (inclusive). 0.4 < = x < = 0.505 (1) 0.83 x + 0.075 < = y < = 0.83 x + 0.095 (2).

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.

Systems, methods, apparatus, and computer program products are provided for the detection of X-ray electromagnetic radiation using a scintillator. [Solution] In one exemplary embodiment, at least one X-ray device may have an X-ray source configured to emit an X-ray cone, a scintillator, a detector, and at least one shroud positioned to block stray light from reaching the detector.

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.

A scintillator panel comprises a substrate, lattice-shaped partitions formed on the substrate, a phosphor layer within cells partitioned by the partitions, and a reflective layer surrounding the side surfaces and bottom of the phosphor layer. The scintillator panel comprises a curved portion of the reflective layer surrounding the side surfaces of the phosphor layer, and portions of the reflective layer on the side surfaces of the phosphor layer having opposing surfaces that are substantially parallel to each other. The ratio of the curved portion to the flat portion of the reflective layer on the bottom of the phosphor layer in the width direction is 10.0:0 to 1.0:9.0. The scintillator panel improves brightness.

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.

The present application relates to an ultra-high concentration cerium ion-activated Gd2O3-rich borosilicate scintillating glass. The glass is prepared from the following raw materials through thorough mixing, high-temperature melting, mold casting, and precision annealing, including the following: 10-35 mol% B2O3, 10-35 mol% SiO2, 0-70 mol% Gd2O3, and 0-20 mol% CeO2; the sum of these components is 100 mol%. The present application also relates to a preparation method and application of the ultra-high concentration cerium ion-activated Gd2O3-rich borosilicate scintillating glass. The scintillating glass of the present application can achieve an ultra-high concentration of 5-15 mol% doping of CeO2, the luminescent center, in the Gd2O3-rich borosilicate scintillating glass. While ensuring high density, it can also achieve a high light yield of 1300 ph / MeV and a scintillation decay time of approximately 100 ns. On the other hand, due to the inherent transparency of glass, simple preparation process, easy adjustment of components, and the ability to achieve low cost and large volume, it has important application value in nuclear radiation detection, high-energy physics experiments, X-ray medical imaging, neutron detection, industrial online detection, and national security monitoring.

The present invention improves the reliability of a scintillator structure. This scintillator structure comprises multiple cells and a reflective layer covering the multiple cells. The reflective layer comprises a resin and reflective particles. The resin is a polyolefin without double bonds.

Provided is a scintillator panel with reduced deterioration in brightness due to irradiation and higher brightness. A scintillator panel including a substrate and a scintillator layer containing phosphors, in which the scintillator layer includes a binder resin having a π-conjugated structure composed of seven or more atoms; in which the glass transition temperature of the binder resin is from 30 to 430°C; and the thickness of the scintillator layer is from 50 to 800 µm.

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.

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.

A ceramic scintillator according to the present embodiment has a composition represented by (Lu1-xPrx)a(Al1-yGay)bO12, wherein x, y, a, and b in the composition respectively satisfy 0.005≤x≤0.025, 0.3≤y≤0.7, 2.8≤a≤3.1, and 4.8≤b≤5.2.

The purpose of the present invention is to suppress reduction in dimensional accuracy and variation in dimensional accuracy due to deformation. A scintillator array according to an embodiment includes a plurality of scintillator segments formed of a sintered body of a rare earth oxysulfide phosphor, a first reflective layer interposed between adjacent scintillator segments so as to integrate the plurality of scintillator segments, and a second reflective layer disposed on a surface side of the plurality of scintillator segments on which X-rays are incident. The amount of deformation of the corners of the second reflective layer is 20 [mu] m or less.

To provide a beam monitor device which enables a three-dimensional structure of a beam to be grasped.SOLUTION: An imaging unit generates a plurality of photographed images obtained by imaging fluorescent light generated according to a proton beam 103 from each of a plurality of directions intersecting the travel direction of the proton beam 103. A computer 13 acquires a three-dimensional beam distribution being the distribution of the proton beam 103 in the three-dimensional space on the basis of the plurality of photographed images. A computer 14 calculates variance and covariance due to the position and momentum of the proton beam 103 in the two directions intersecting the travel direction of the proton beam 103 on the basis of the three-dimensional beam distribution.SELECTED DRAWING: Figure 1

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

To improve reliability of a scintillator structure.SOLUTION: A scintillator structure for application of X-ray detection constituting an X-ray detector includes a plurality of cells, and a reflection layer covering the plurality of cells. Each of the plurality of cells includes a resin and a phosphor, and the resin is an epoxy resin having an isocyanurate ring having a reduction rate of total light transmittance to light having a wavelength of 542 nm of less than 8%, after irradiation with X rays of the dose of 100 kGy, and is a resin containing a non-aromatic curing agent which does not chemically have a carbon double bond.SELECTED DRAWING: Figure 1

The invention provides an industrial X-ray film and a preparation method thereof, and relates to the field of industrial X-ray films. The preparation method of the industrial X-ray film comprises the following steps: preparing a silver halide cubic particle emulsion, carrying out in-situ composite modification, preparing an emulsion layer coating liquid, and carrying out coating molding. According to the preparation method of the industrial X-ray film, the problems of obvious image granularity, transverse migration of silver atoms and combination of development centers between adjacent particles can be effectively solved, the utilization rate of X-ray photons is improved while the image resolution is improved, and the photosensitive sensitivity and the photosensitive response range are effectively improved; and the long-term stability, especially the pressure stability and the environmental stability, of the industrial X-ray film is improved.