Abstract: A radiological image conversion panel 2 provided with a support 11 and a phosphor 18 which is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.

Abstract: A radiological image detection apparatus includes: a scintillator which is formed out of a group of columnar crystals in which crystals of a fluorescent material emitting fluorescence when irradiated with radiation have grown into columnar shapes; and a photodetector which detects the fluorescence emitted by the scintillator as an electric signal. Activator density in the scintillator varies between high density and low density repeatedly in a radiation travelling direction in at least a part of the scintillator. The activator density in each of front end portions and base end portions of the columnar crystals is lower than the high density.

Abstract: An adiological image detection apparatus 3 includes a phosphor 60 that contains a fluorescent material which emits fluorescence by radiation exposure, and a sensor panel 61 which is provided to be in close contact with the phosphor, and detects the fluorescence emitted from the phosphor. The phosphor includes a columnar section that is formed by a group of columnar crystals 82 formed by growing crystals of the fluorescent material in a columnar shape, a radiation incident plane is provided in the sensor panel at a side opposite to the phosphor, and the sensor panel has flexibility and is curved to locate a curvature center at the radiation incident plane side.

Abstract: The X-ray image detection apparatus 1 includes: a scintillator panel 10 including a phosphor 200 that is formed on a support 101 and emits fluorescence by irradiation of radiation; and a photodetector 40 that detects the fluorescence emitted by the phosphor as an electric signal, wherein the phosphor 200 includes a columnar section 20 formed by growing crystals of a fluorescent material in a columnar shape, and a non-columnar section 25 provided between the columnar section 20 and the support 101 and has a porosity lower than that of the columnar section 20, and the scintillator panel 10 is disposed at the rear side of the photodetector 40 in a radiation travelling direction, and in the phosphor 200, the non-columnar section 25 is disposed at a side opposite to the photodetector side.

Abstract: A radiological image conversion panel 2 provided with a support 11 and a phosphor 18 which is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.

Abstract: The X-ray image detection apparatus 1 includes: a scintillator panel 10 including a phosphor 200 that is formed on a support 101 and emits fluorescence by irradiation of radiation; and a photodetector 40 that detects the fluorescence emitted by the phosphor as an electric signal, wherein the phosphor 200 includes a columnar section 20 formed by growing crystals of a fluorescent material in a columnar shape, and a non-columnar section 25 provided between the columnar section 20 and the support 101 and has a porosity lower than that of the columnar section 20, and the scintillator panel 10 is disposed at the rear side of the photodetector 40 in a radiation travelling direction, and in the phosphor 200, the non-columnar section 25 is disposed at a side opposite to the photodetector side.

Abstract: The device includes: a scintillator 200 configured to emit fluorescence by irradiation of radiation, and a photodetector 40 configured to detect the fluorescence emitted from the scintillator 200 as an electrical signal, wherein the scintillator 200 includes a columnar section 20 which is disposed at a rear side of the photodetector 40 in a travel direction of the radiation and at the same time is formed by a group of columnar crystals 20A obtained through columnar growth of crystals of a fluorescent material, and a first non-columnar section 23 which is provided at the photodetector 40 side of the columnar section 20.

Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.

Abstract: A radiological image detection apparatus, includes: two scintillators that convert irradiated radiation into lights; and a photodetector arranged between two scintillators, that detects the lights converted by two scintillators as an electric signal; in which: an activator density in the scintillator arranged at least on a radiation incident side out of two scintillators in vicinity of the photodetector is relatively higher than an activator density in the scintillator on an opposite side to a photodetector side.

Abstract: Semiconductor substrates with high aspect ratio recesses formed therein are described. The high aspect ratio recesses have bottom surface profile characteristics that promote formation of initial growth sites of plated metal as compared to the side surfaces of the recesses. Processes for making and plating the recesses are also disclosed. The metal-plated high aspect ratio recesses can be used as X-ray gratings in Phase Contrast X-ray imaging apparatuses.

Abstract: Semiconductor substrates with high aspect ratio recesses formed therein are described. The high aspect ratio recesses have bottom surface profile characteristics that promote formation of initial growth sites of plated metal as compared to the side surfaces of the recesses. Processes for making and plating the recesses are also disclosed. The metal-plated high aspect ratio recesses can be used as X-ray gratings in Phase Contrast X-ray imaging apparatuses.

Abstract: A conductive substrate (18) and an etching substrate (20) are bonded to each other. An etch mask (25) is formed on the etching substrate (20) using a photolithography technique. On the etching substrate (20), grooves (20a) and X-ray transmitting sections (14b) are formed by dry etching using Bosch process. The grooves (20a) are filled with Au (27) by an electroplating method using the conductive substrate (18) as an electrode. Thus, X-ray absorbing sections (14a) are formed.

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: A scintillator receives radiation and produces light. The scintillator is composed of columnar crystals arranged upright. Conical end portions of the columnar crystals are embedded in a resin layer formed on a light detection section. The resin layer, made from a thermosetting resin material, is heated and cured with the end portions embedded therein. Because a refractive index of the resin layer is lower than that of the columnar crystals, average refractive indices of respective layers between the columnar crystals and the light detection section change continuously. The resin layer prevents the end portions from damage and improves efficiency of incidence on the light detection section.

Abstract: In a radiation detector, a scintillator converts radiations penetrating through a sensor panel to light, and the light is detected by a photosensor in the sensor panel. A reflector layer including a specular reflection and retro-reflection layers is provided on the opposite side of the scintillator to the sensor panel. The specular reflection layer specularly reflects short-wavelength components of the light from the scintillator, and lets long-wavelength components of the light pass through it. The photosensor can detect the short-wavelength components efficiently at positions close to their origins because they are guided along columnar crystals of the scintillator. Since long-wavelength components are less refrangible and tend to deviate from their origins, causing crosstalk, the retro-reflection layer retroreflects the long-wavelength components toward the sensor panel, so that the long-wavelength components also reach the sensor panel at positions close to their origins.

Abstract: A radiological image detection apparatus includes: a first scintillator and a second scintillator that emit fluorescent lights in response to irradiation of radiation; and a first photodetector and a second photodetector that detect the fluorescent lights; in which the first photodetector, the first scintillator, the second photodetector, and the second scintillator are arranged in order from a radiation incident side, and a high activator density region in which an activator density is relatively higher than an average activator density in a concerned scintillator is provided to at least one of the first scintillator located in vicinity of the first photodetector and the second scintillator located in vicinity of the second photodetector.

Abstract: A radiological image detection apparatus includes: a phosphor which contains a fluorescent material emitting fluorescence when exposed to radiation; and a sensor panel which detects the fluorescence; in which the sensor panel has a substrate and a group of photoelectric conversion elements provided on one side of the substrate; the phosphor adheres closely to an opposite surface of the substrate to the side where the group of photoelectric conversion elements are provided; and an irregular structure is formed in the surface of the substrate to which the phosphor adheres closely.

Abstract: A radiological image detection apparatus, includes: two scintillators that convert irradiated radiation into lights; and a photodetector arranged between two scintillators, that detects the lights converted by two scintillators as an electric signal; in which: an activator density in the scintillator arranged at least on a radiation incident side out of two scintillators in vicinity of the photodetector is relatively higher than an activator density in the scintillator on an opposite side to a photodetector side.

Abstract: An X-ray transmissive substrate is etched to form a plurality of grooves, a plurality of X-ray transmitting sections, and a plurality of supporting portions. The grooves, formed between the X-ray transmitting sections, extend in Y direction and are arranged in X direction orthogonal to the Y direction. In the grooves, the supporting portions protrude from sides of the X-ray transmitting sections in the X direction and are arranged alternately in the Y direction. The supporting portions support the X-ray transmitting sections when the grooves are filled with an X-ray absorbing material through electroplating. The supporting portions prevent the X-ray transmitting sections from falling over due to waves of a plating liquid and uneven growth of the X-ray absorbing material.

Abstract: A radiological image detection apparatus includes: a scintillator which is formed out of a group of columnar crystals in which crystals of a fluorescent material emitting fluorescence when irradiated with radiation have grown into columnar shapes; and a photodetector which is provided on a radiation entrance side of the scintillator and which detects the fluorescence emitted by the scintillator as an electric signal. A high activator density region whose activator density is higher than activator density of a region on an opposite side to the radiation entrance side in the scintillator is provided and disposed on the photodetector side in the scintillator.