Abstract: There is provided an image apparatus capable of improving a frame rate to prevent resolution in the predetermined area from decreasing and forming image signals outside the predetermined area.

Abstract: To provide a radiation imaging apparatus which is capable of both connecting state radiographing for radiographing with a C arm connected and non-connecting state radiographing for radiographing with the C arm disconnected, and is convenient and obtains high quality images, the apparatus includes: a flat panel detector; a holding unit for holding at least the flat panel detector;and a control unit for controlling the flat panel detector.

Abstract: When performing an offset correction, without lowering an image quality of the radiographed image data, a prompt radiographing is realized. Hence, a memory 105 stores a first image data for offset correction generated by performing an interlace scanning of the driving lines of odd rows only in a driving circuit unit 103. A memory 106 stores a second image data for offset correction generated by performing the interlace scanning of the driving lines of even row only in the driving circuit unit 103. A processing unit 108 synthesizes the first image data for offset correction and the second image data for offset correction, thereby to generate an image data for offset correction of one frame portion, and an arithmetic operation unit 109 performs an arithmetic operation processing on the radiation image data stored in a memory 107 by using the image data for offset correction of one frame portion synthesized and generated, thereby to perform the offset correction of the radiation image data.

Abstract: A photoelectric converter includes a plurality of substrates, which are located adjacent to each other and on which a plurality of photoelectric conversion devices are two-dimensionally arranged, and either scan circuits or detection circuits that are arranged on two opposing sides of the photoelectric converter, whereby scanning directions either from the scan circuits or from the detection circuits, which are arranged on the two opposing sides, are capable of being set so as to be performed in like directions.

Abstract: A radiation imaging apparatus is capable of taking a moving picture by acquisition by a reading circuit of a plurality of radiation image signals on the basis of a plurality of successive times of irradiation of a radiation detector with radiation rays. The radiation detector has a two-dimensional array of pixels. In a period between a start of an n-th time of irradiation with radiation rays and a start of an (n+1)-th time of irradiation with radiation rays, where n is a natural number, a controller switches an operation status of an analog-to-digital converter that converts electric signals read by the reading circuit into digital signals so that power consumption of the analog-to-digital converter is reduced.

Abstract: To provide a radiation image pick-up device capable of obtaining a plurality of tomography images through single-time image pick-up, a radiation image pick-up method and a program. When a position controller moves an X-ray source to an optional tomography plane in an object to be detected in parallel and the X-ray source is present at geometric focuses set at equal interval, X rays are pulsatively generated by the X-ray source and detection of X rays by a radiation detector is performed by the total of n times. Moreover, a position controller moves the radiation detector in accordance with the movement of the X-ray source.

Abstract: An imaging apparatus capable of reducing a line noise artifact in a simple configuration without complicated operations includes: a plurality of pixels arranged in row and column directions and having a photoelectric conversion element and a switch element; a plurality of signal wirings connected to the plurality of switch elements in the column direction; a read out circuit connected to the plurality of signal wirings; and a power source for supplying a voltage to the photoelectric conversion element. With the configuration, the plurality of pixels are classified into a plurality of groups, and the power sources are independently provided for each of the plurality of groups.

Abstract: When a gain correction is performed for the radiographed object image, the acquisition of the object image having a high grade quality and no artifact is realized. For that purpose, an image storing unit is provided for storing an image for correction radiographed based on conditions set with the table in a state in which no object exists to each operation modes of the plurality of operation modes; and an image processing unit is provided for performing a gain correction processing of the radiographed object image and performs the gain correction processing of the radiographed object image obtained based on the conditions set in the table of the operation mode selected by the selecting unit in a state in which the object exists using a corresponding image for correction extracted from the image storage unit based on the operation mode selected by the selecting unit.

Abstract: At least one exemplary embodiment is directed to a radiography apparatus configured to have an offset reading period, where during the offset reading period an offset reading operation is performed without illumination by radiation (e.g., X-rays). The offset reading period can be different from a radiation (e.g., X-ray) reading period in timings of applying a gate pulse. During the offset reading period, a pixel addition can be performed such that the switching elements corresponding to two or more lines are concurrently turned on-off thus reducing the offset reading period.

Abstract: An imaging apparatus includes a sensor array in which a plurality of pixels each including a photoelectric conversion element and a switching element are arrayed in a row direction and a column direction, signal wiring connected to a plurality of the switching elements provided in the column direction, and a reading-circuit unit connected to the signal wiring, where the reading-circuit unit includes a first operational area including a first amplifying circuit and a second operational area including a second amplifying circuit connected to the first operational area, and the first and second amplifying circuits are each arranged to be supplied with power within a range, the maximum of the power-supply voltage range of the first amplifying circuit being larger than the maximum of a power-supply voltage range of the second amplifying circuit.

Abstract: A photoelectric converter includes a plurality of substrates, which are located adjacent to each other and on which a plurality of photoelectric conversion devices are two-dimensionally arranged, and either scan circuits or detection circuits that are arranged on two opposing sides of the photoelectric converter, whereby scanning directions either from the scan circuits or from the detection circuits, which are arranged on the two opposing sides, are capable of being set so as to be performed in like directions.

Abstract: A radiation imaging apparatus comprises a read unit reading the electric signal in the radiation detecting elements in a radiation detecting unit comprises the radiation detecting elements converting incident radiation into electric signals arranged two-dimensionally, a control unit controlling the radiation detecting unit with such that a first radiation detecting element group is made senseless state and a second radiation detecting element group is made sensible state, and a signal processing unit performing a subtraction processing such that the electric signal in the radiation detecting elements made senseless state read by the read unit is subtracted from the electric signal in the radiation detecting elements made sensible state read by the read unit according to the state control by the control unit, to reduce conspicuous line noise in an image by a relatively simple configuration.

Abstract: An X-ray image radiographing system according to the present invention comprises an X-ray generator 103, a detection unit 102, a correction unit 108 for performing a correction processing for the data outputted from the detection unit 102, and an output unit 115 such as a monitor for outputting data processed by the correction unit 108. Moreover, it comprises a control unit 101 for controlling the detection unit 102, the X-ray generator 103 and the correction unit 108, a radiographing condition memory 107 accessible by the control unit 101, a radiographing button 105 for making a radiographing request to the control unit 101, a radiographing mode setting unit 106 for setting a radiographing mode in the control unit 101, and a photo timer 104 having an AE function. The radiographing mode setting unit 106 may be constituted of a workstation, for example.

Abstract: The invention intends to be able to adequately perform a gain correction. Hence, at the time of radiographing an object, a gain correction of the object image is performed based on a gain correction image (XRc1) derived by performing a light reset. On the other hand, at the time of radiographing an object, when a light reset is not performed, a gain correction of the object image is performed based on a gain correction image (XRc2) derived without performing the light reset.

Abstract: An object hereof is to restrain occurrence of artifact in an acquired radiation image with comparatively simple configuration without providing wiring between a radiation source and a radiation imaging apparatus to thereby obtain a radiation image with extremely good quality. Therefore, a controller selectively carries out real read operation of reading an electric signal obtained by activating a drive circuit from a signal processing circuit unit in case of detecting X-ray irradiation with an X-ray detecting circuit and dummy read operation of reading an electric signal obtained by activating a drive circuit from a signal processing circuit unit in case of detecting X-ray non-irradiation with an X-ray detecting circuit; discontinues the dummy read operation at the time of detecting the start of X-ray irradiation with the X-ray detecting unit in dummy read operation; and starts real read operation at the time of detecting the finish of X-ray irradiation with the X-ray detecting unit.

Abstract: An X-ray image radiographing system comprises an X-ray generator, a detection unit, a correction unit for performing a correction processing for the data outputted from the detection unit, and an output unit for outputting data processed by the correction unit. Moreover, it comprises a control unit for controlling the detection unit, the X-ray generator and the correction unit, a radiographing condition memory accessible by the control unit, a radiographing button for making a radiographing request to the control unit, a radiographing mode setting unit 106 for setting a radiographing mode in the control unit, and a photo timer having an AE function. The radiographing mode setting unit may be constituted of a workstation. Thereby, it is possible to provide an image radiographing apparatus and system capable of easily coping with a plurality of radiographing modes.

Abstract: In a photoelectric conversion device, in order to suppress alteration of its properties during a long time use, lower the decrease of the S/N ratio due to a dark current output, and shorten image-pickup cycles, MIS type photoelectric conversion elements using an amorphous semiconductor material are connected with an electric power source for applying bias for photoelectric conversion, an electric power for resetting an accumulated electric charge, and a setting point for applying zero bias at the time of non-operation of the element through a switch. Emitted x-rays from an x-ray source, which is a first light source, come into collision against phosphor after being transmitted through an object body to be inspected and then are absorbed in the phosphor to be converted into visible light rays. The visible light rays from the phosphor are radiated to the photoelectric conversion elements. Prior to reading out of the x-ray image, an LED light source is lighted.

Abstract: A photoelectric converter includes a plurality of substrates, which are located adjacent to each other and on which a plurality of photoelectric conversion devices are two-dimensionally arranged, and either scan circuits or detection circuits that are arranged on two opposing sides of the photoelectric converter, whereby scanning directions either from the scan circuits or from the detection circuits, which are arranged on the two opposing sides, are capable of being set so as to be performed in like directions.

Abstract: In order to provide a photoelectric conversion apparatus, which is an apparatus excellent in reading speed, high S/N, high tone level, and low cost, the photoelectric conversion apparatus has a photoelectric conversion circuit section comprising a plurality of photoelectric conversion elements, switching elements, matrix signal wires, and gate drive wires arranged on a same substrate in order to output parallel signals, a driving circuit section for applying a driving signal to the gate drive wire, and a reading circuit section for converting the parallel signals transferred through the matrix signal wires to serial signals to output them, wherein the reading circuit section comprises at least one analog operational amplifier connected with each of the matrix signal wires, transfer switches for transferring output signals from the respective matrix signal wires, output through each amplifier, reading capacitors, and reading switches for successively reading the signals out of the reading capacitors in the for

Abstract: The radiation image pickup apparatus is provided with a sensor array in which a plurality of pixels are two-dimensionally arranged, in which the pixels are provided with a conversion element for converting radiation into electric charge and a switch element for transferring an electrical signal according to the electric charge to the outside, a reading circuit for reading the electrical signal transferred from the switch element through a signal wiring, a driving circuit for supplying a drive signal to the switch element through a drive wiring in order to transfer the electrical signal to the reading circuit and a control unit for changing the voltage value of the drive signal in accordance with the number of drive wirings through which the drive signal is simultaneously supplied from the driving circuit.