Abstract: A radiographic imaging apparatus including: a scintillator that includes at least a columnar crystal and converts irradiated radiation into light; a light receiving element that receives light emitted from the scintillator; and a sensor substrate that comprises a light receiving element that receives light emitted from the scintillator and converts the received light into an electric signal, a cross-sectional diameter of the columnar crystal in a region located at a sensor substrate side being larger than that in a region located at a side opposite to the sensor substrate side.

Abstract: There is provided a radiographic imaging device including: a converting layer that is flat-plate-shaped and that converts irradiated radiation into light; a light detecting substrate that is disposed at one surface side of the converting layer, and detects light converted by the converting layer; an illuminating section that illuminates light with respect to another surface side of the converting layer; and a half-mirror that is provided over an entire surface of a region, which is between the converting layer and the light illuminating section and which corresponds to a detection region at which light is detected by the light detecting substrate, the half-mirror reflecting at least a portion of light converted by the converting layer, and transmitting at least a portion of light illuminated by the light illuminating section.

Abstract: A radiographic image capturing apparatus includes a housing and a radiation detector accommodated in the housing. The radiation detector includes a scintillator for converting radiation into visible light and photodiodes for converting the visible light into electric charges. If it is assumed that a temperature-dependent rate of change in sensitivity of the scintillator with respect to the radiation is represented by A [%/K] and a temperature-dependent rate of change in sensitivity of the photodiodes with respect to visible light is represented by B [%/K], a scintillator and photodiodes are selected having temperature-dependent rates of change A and B that satisfy the following inequality (1): ?0.35 [%/K]<A+B<0.

Abstract: The present invention provides a radiation detector with improved workability in manufacturing processes and maintenance processes. Namely, a first housing and a second housing can be opened, to allow accessing of a TFT substrate and a radiation converting layer disposed in the first housing, and to allow accessing of a circuit substrate disposed in the second housing. Accordingly, higher workability can be achieved in manufacturing processes such as connecting of switching elements of the TFT substrate and the circuit substrate, and in maintenance processes of the TFT substrate and the circuit substrate.

Abstract: A radiographic image capturing apparatus includes a photodetector substrate, a scintillator, a switching filter, and a resetting light source, which are arranged successively in this order. If the switching filter is made permeable to resetting light from the resetting light source, the switching filter allows resetting light to be applied to the photodetector substrate through the scintillator, whereas, if the switching filter is made impermeable to the resetting light, the switching filter reflects at least a fluorescence, which is converted from radiation by the scintillator, toward the photodetector substrate.

Abstract: A radiographic image capturing apparatus includes a resetting light source, a switching filter, a photodetector substrate, and a scintillator, which are arranged successively in this order. If the switching filter is made permeable to resetting light from the resetting light source, the switching filter applies the resetting light to the photodetector substrate. If the switching filter is made impermeable to the resetting light, the switching filter reflects at least a fluorescence, which is converted from radiation by the scintillator, toward the photodetector substrate.

Abstract: There is provided a radiographic imaging device including: an imaging panel at which sensor portions, that detect radiation or light converted from radiation, are formed at a detection region, and that captures a radiographic image expressed by radiation or light converted from radiation; a light illuminating section at which light-emitting portions, that can individually illuminate light for erasing residual images, are provided per sectional region obtained by dividing the detection region into the sectional regions; a storage section that stores imaging actual results information that expresses past actual results of imaging carried out by the imaging panel; and a control section that, in accordance with at least one of actual results of imaging and imaging conditions, controls absence/presence of illumination of, light amount of, and illumination time period of light from the respective light-emitting portions of the light illuminating section.

Abstract: There is provided a radiation detector including: a light detecting substrate that converts light into charges; a scintillator layer that faces the light detecting substrate and converts irradiated radiation into light; and a reflecting portion that reflects light, converted at the scintillator layer, toward the light detecting substrate, and is disposed so as to face the scintillator layer and so as to be able to be displaced relative to the scintillator layer in an in-plane direction.

Abstract: In a radiation image detection apparatus having a radiation image detector that includes the following stacked in the order listed below: a bias electrode, a photoconductive layer, a substrate side charge transport layer, and an active matrix substrate, the radiation image detector does not include an area adjacent to the interface between the substrate side charge transport layer and photoconductive layer having an oxygen or chlorine element density not less than two times the average density of oxygen or chlorine element in the substrate side charge transport layer.

Abstract: In a radiation image detection apparatus having a radiation image detector that includes the following stacked in the order listed below: a bias electrode, a photoconductive layer, a substrate side charge transport layer, and an active matrix substrate, the radiation image detector does not include an area adjacent to the interface between the substrate side charge transport layer and photoconductive layer having an oxygen or chlorine element density not less than two times the average density of oxygen or chlorine element in the substrate side charge transport layer.

Abstract: There is provided a radiographic imaging system including: a radiographic imaging device including a generating section that captures a radiographic image expressed by irradiated radiation and generates image information expressing the captured radiographic image, and a first communication section that transmits, plural times and by wireless communication and even during a response wait time period, imaging start instructing information that instructs starting of imaging when preparations for capturing a radiographic image by the generating section have been completed; and a control device having a second communication section that can communicate by wireless communication with the first communication section, and a control section that controls a radiation irradiating section such that radiation is irradiated with respect to the radiographic imaging device in a case in which the second communication section receives any of the imaging start instructing information that are transmitted plural times from the f

Abstract: In a radiation detecting system including an electric voltage imparting electrode through which a bias electric voltage is applied, a recording photoconductive layer which comprises a-Se and generates electric charges in response to receipt of projection of radiation, a carrier collecting electrode, a charge storing portion which stores electric charges generated in the recording photoconductive layer and a switching element for reading out charge signal stored in the charge storing portion, superposed one on another in this order, an organic resin dielectric layer which is not smaller than 0.01 ?m and smaller than 1 ?m in thickness, not lower than 1012 ?cm in specific resistance and 6×10?6 to 1.5×10?4/° C. in thermal expansion coefficient is provided between the recording photoconductive layer and the electric voltage imparting electrode.

Abstract: The invention provides an organic electroluminescent device having at least a light-emitting layer containing a light-emitting material and a host material, a hole injection-promoting layer, and a hole-transporting layer containing a hole-transporting material in this order between a pair of electrodes, in which the hole injection-promoting layer contains a hole-transporting material and has a thickness of 0.1 nm to 0.3 nm, and the relationship Ip1<Ip2<Ip3 is satisfied, when Ip1 is defined as the ionization potential of the hole-transporting material of the hole-transporting layer, Ip2 is defined as the ionization potential of the hole-transporting material of the hole injection-promoting layer, and Ip3 is defined as the ionization potential of the host material. Accordingly, the invention provides an electroluminescent device excellent in both light emitting efficiency and operation durability.

Abstract: In a radiation detecting system including a first electrode which is imparted with a positive bias and permeable to a recording electromagnetic wave carrying thereon image information, a recording photoconductive layer which generates electric charges in response to receipt of projection of the recording electromagnetic wave, an organic polymer layer provided between the first electrode and the recording photoconductive layer, and a second electrode which is provided on the side of the recording photoconductive layer opposite to a side where the first electrode is provided and being for recording the image information by storing electric charges generated in the recording photoconductive layer upon projection of the recording electromagnetic wave, the organic polymer layer includes a hole blocking material.

Abstract: The present invention provides a radiation detector with improved workability in manufacturing processes and maintenance processes. Namely, a first housing and a second housing can be opened, to allow accessing of a TFT substrate and a radiation converting layer disposed in the first housing, and to allow accessing of a circuit substrate disposed in the second housing. Accordingly, higher workability can be achieved in manufacturing processes such as connecting of switching elements of the TFT substrate and the circuit substrate, and in maintenance processes of the TFT substrate and the circuit substrate.

Abstract: An organic electroluminescent element including a pair of electrodes and one or more organic compound layers including at least one light-emitting layer disposed between the pair of electrodes, wherein the at least one light-emitting layer contains at least one luminescent dopant and a plurality of host compounds. The ionization potential of the dopant is Ip(D), the minimum value out of the ionization potentials of the plurality of host compounds is Ip(H)min, and ?Ip is defined by ?Ip=Ip(D)?Ip(H)min and satisfies a relationship of ?Ip>0 eV. The electron affinity of the dopant is Ea(D), the maximum value out of the electron affinities of the plurality of host compounds is Ea(H)max, and ?Ea is defined by ?Ea=EA(H)max?Ea(D) and satisfies a relationship of ?Ea>0 eV.

Abstract: In a radiation detecting system including an electric voltage imparting electrode through which a bias electric voltage is applied, a recording photoconductive layer which comprises a-Se and generates electric charges in response to receipt of projection of radiation, a carrier collecting electrode, a charge storing portion which stores electric charges generated in the recording photoconductive layer and a switching element for reading out charge signal stored in the charge storing portion, superposed one on another in this order, an organic resin dielectric layer which is not smaller than 0.01 ?m and smaller than 1 ?m in thickness, not lower than 1012 ?cm in specific resistance and 6×10?6 to 1.5×10?4/° C. in thermal expansion coefficient is provided between the recording photoconductive layer and the electric voltage imparting electrode.

Abstract: An organic electroluminescent device having at least one organic layer containing a light-emitting layer between a pair of electrodes, wherein the organic electroluminescent device contains a compound emitting fluorescence at a time that voltage is applied, and the light emission at the time that voltage is applied is mainly derived from the light emission of a fluorescent compound, and the external quantum efficiency of the device is 6% or more. It is preferable that the organic electroluminescent device contain an amplifying agent performing the function of amplifying the number of singlet excitons generated at the time that voltage is applied, thus amplifying the intensity of the light emission. The amplifying agent is a transition metal complex, in particular, an iridium complex, a platinum complex, a rhenium complex, a ruthenium complex, a palladium complex, a rhodium complex, a copper complex or a rare earth device complex. The compound emitting fluorescence is preferably a fused aromatic compound.

Abstract: There is provided a radiographic imaging system including: a radiographic imaging device including a generating section that captures a radiographic image expressed by irradiated radiation and generates image information expressing the captured radiographic image, and a first communication section that transmits, plural times and by wireless communication and even during a response wait time period, imaging start instructing information that instructs starting of imaging when preparations for capturing a radiographic image by the generating section have been completed; and a control device having a second communication section that can communicate by wireless communication with the first communication section, and a control section that controls a radiation irradiating section such that radiation is irradiated with respect to the radiographic imaging device in a case in which the second communication section receives any of the imaging start instructing information that are transmitted plural times from the f

Abstract: The present invention provides an X-ray detecting element that can obtain radiation images by X-rays of different energies by irradiation of X-rays a single time, without positional offset arising. A first scintillator is provided at an outer side of a sensor portion and a sensor portion of one surface side of a substrate. A second scintillator is provided at another surface side of the substrate. X-rays that are irradiated from the one surface side or the other surface side of the substrate are converted into light at the first and second scintillators. The sensor portion detects light that is illuminated from the first scintillator of the one surface side, and the sensor portion detects light that is illuminated from the second scintillator of the other surface side of the substrate.