A radiation imaging apparatus includes a sensor unit in which a plurality of detecting elements each configured to detect emitted radiation are arranged, and a notification unit configured to make a notification by a sound. As the sound produced from the notification unit, a sound having a fundamental frequency which satisfies a condition determined based on the number of rows of a predetermined area of an image read out from the sensor unit and a readout frequency of signals of each row is used.

A radiation image capturing system includes a capturing room and a console. The capturing room includes a bucky apparatus, a radiation irradiating apparatus and a detecting unit. A plurality of portable radiation image capturing apparatuses can be loaded on the bucky apparatus. The radiation irradiating apparatus is able to simultaneously irradiate radiation to the plurality of portable radiation image capturing apparatuses. The console is associated with the capturing room and obtains capturing order information. The console allows the portable radiation image capturing apparatuses to advance to a capturing possible state when the console judges that capturing in the capturing order information is long length capturing. The console allows only one of the portable radiation image capturing apparatuses to advance to the capturing possible state when the console judges that the capturing is not the long length capturing.

An extra-oral dental imaging apparatus for obtaining an image from a patient has a radiation source; a first digital imaging sensor that provides, for each of a plurality of image pixels, at least a first digital value according to a count of received photons that exceed at least a first energy threshold; a mount that supports the radiation source and the first digital imaging sensor on opposite sides of the patient's head; a computer in signal communication with the digital imaging sensor for acquiring a first two-dimensional image from the first digital imaging sensor; and a second digital imaging sensor that is alternately switched into place by the mount and that provides image data according to received radiation.

A radiographic image capturing apparatus includes: a two-dimensional array of radiation detecting elements that generate one or more electric charges in proportion to a dose of incident radiation; and a control unit that performs control, at least, to read the electric charges from the radiation detecting elements and generate image data. An image capturing mode is switchable between a controlled mode in which the radiographic image capturing apparatus is under control of an external console and a stand-alone mode in which the radiographic image capturing apparatus autonomously performs image capturing without the control of the console. When the image capturing mode is switched to the controlled mode or the stand-alone mode, the control unit changes its own process so as to meet the switched image capturing mode.

An imaging system is provided that includes a gantry having a bore extending therethrough; a plurality of image detectors attached to the gantry and radially spaced around a circumference of the bore such that gaps exist between image detectors along the circumference of the bore; an x-ray source attached to the gantry, wherein the x-ray source transmits x-rays across the bore towards at least two of the image detectors; wherein at least two image detectors detect both emission radiation and x-ray radiation.

A radiation imaging system includes: multiple radiation imaging apparatuses each including a radiation detecting panel and an enclosure enveloping the radiation detecting panel. The multiple radiation imaging apparatuses are arrayed so that a part of each of the radiation imaging apparatuses spatially overlap as seen from a radiation irradiation side, and a radiation image is acquired based on image signals from each of the multiple radiation imaging apparatuses. The enclosure of at least one radiation imaging apparatus of the multiple radiation imaging apparatuses is formed so that a radiation transmittance of the enclosure which defines the overlapping region is higher than a radiation transmittance of the enclosure which defines a different region.

A radiographing system and a radiographing method capable of improving the image quality of a long-sized image by appropriately correcting scattered radiation are disclosed. The radiographing system includes a plurality of radiation detecting apparatuses that can detect radiation and output radiographic images, a composition processing unit configured to generate a long-sized image by composing a plurality of radiographic images acquired from the plurality of radiation detecting apparatuses, and a scattered radiation correction unit configured to perform processing for correcting scattered radiation for a radiographic image output from at least one of the plurality of radiation detecting apparatuses.

An X-ray detector assembly for an imaging system is provided. The X-ray detector assembly includes a block for mounting to a rotating disc, the block including two opposing end surfaces, two opposing side surfaces and at least one mounting surface, and at least two detector chips, each detector chip including an X-ray detecting surface and an opposing block-facing surface, two opposing end surfaces and two opposing side surfaces, and each detector chip having a flexible bus mounted to the opposing block-facing surface of the detector chip adjacent to a side surface of the detector chip. The at least one mounting surface of the block receives the at least two detector chips in side-by-side disposition, with the buses of the at least two detector chips extending along a side surface of the block.

A computed tomography (CT) imaging system is provided. The CT imaging system includes a gantry, rotatable about an axis of rotation. The CT imaging system also includes a table configured to move a subject to be imaged into and out of a bore of the gantry. The CT imaging system further includes a radiation source mounted on the gantry and configured to emit an X-ray beam. The CT imaging system even further includes one or more detectors configured to detect the emitted X-ray beam, wherein the one or more detectors comprises a flat panel detector disposed within the table, wherein the table is configured to move the flat panel detector into and out of the bore. The CT imaging system is configured to generate a two-dimensional image of the subject utilizing the radiation source and the flat panel detector.

A radiographic imaging system includes plural radiographic imaging devices that image a same subject. The radiographic imaging device includes: a radiation detector; a detection unit that detects whether or not application of the radiation has been started based on electrical signals indicating detection results of sensors that detect the application of the radiation and that are disposed in correspondence to the radiation detector; a determination unit that determines whether or not noise is superimposed on the electrical signals after the detection unit has detected whether or not the application of the radiation has been started; and a communication unit that is connected to another radiographic imaging device and transmits to and receives from the other connected radiographic imaging device a detection result signal indicating the detection result of the detection unit and a determination result signal indicating the determination result of the determination unit.