Abstract: Some embodiments include a system, comprising: a housing; an imaging array disposed within the housing; an imaging strip disposed within the housing; a first readout circuit coupled to the imaging array; a second readout circuit coupled to the imaging strip; and common electronics coupled to the first readout circuit and the second readout circuit and configured to generate image data in response to at least one of the first readout circuit and the second readout circuit.

Abstract: Image sensor circuitry comprising an image sensor and method for supporting reduction of laser speckle effects in a digital image. Per each pixel position (x, y) of at least a subregion of the image sensor, the image sensing circuitry: Assigns to said pixel position (x,y) a predefined pixel window (w) comprising said pixel position (x,y) and one or more of its closest neighboring pixel positions. Obtains first pixel values for each pixel located within said predefined pixel window (w), said first pixel values resulting from the same exposure and corresponding to sensed light from this exposure. Combines the obtained first pixel values into a single, second pixel value according to a predefined combination function. The digital image is provided based on the second pixel values.

Abstract: X-ray detectors for generating digital images are disclosed. An example digital X-ray detector includes: a scintillation screen; a reflector configured to reflect light generated by the scintillation screen; and a digital imaging sensor configured to generate a digital image of the light reflected by the reflector.

Abstract: A radiation imaging apparatus in which a detection unit configured to generate an image signal corresponding to incident radiation and a control unit are arranged in one housing is provided. The radiation imaging apparatus further comprises a notification unit arranged in the housing and configured to show a state of the radiation imaging apparatus. While causing the detection unit to perform a continuous capturing operation of a radiation image, the control unit performs control so that the notification unit will perform notification of the ongoing capturing operation.

Abstract: An probe body comprising: one or more light sources; one or more light sensors; an x-ray detector configured to detect, using at least one of the one or more light sensors, light from a scintillator for converting extra-orally applied x-rays to light; and a lower energy light detector configured to detect, using at least one of the one or more light sensors, light from an object illuminated by at least one of the one or more light sources.

Abstract: A radiation detection apparatus detects radiation and generates irradiation sensing information corresponding to a dose of detected radiation, senses whether radiation emitted from a radiation generator is detected, based on the generated irradiation sensing information, and receives a control signal from a controller. The apparatus switches detectability for detection of the radiation based on a control signal received from the controller.

Abstract: According to one embodiment, the X-ray image diagnosis apparatus comprises an X-ray generator, an X-ray restriction unit, a first X-ray detector, a second X-ray detector, and a drive. The X-ray generator generates X-rays to be applied to a subject. The X-ray restriction unit is disposed between the subject and the X-ray generator to restrict X-rays outside an opening region which is formed using a metal plate. The first X-ray detector has a first detection region in which X-rays that pass through the subject are detected. The second X-ray detector has a second detection region which is smaller than the first detection region and which has a high spatial resolution. The drive moves the first and second X-ray detectors so that the second detection region includes an irradiation region of the subject formed by the opening region.

Abstract: Disclosed is a CT imaging method and system. The method includes: CT scanning an object with a dual-energy CT system to obtain a first complete set of projection data in a first scan mode, and to obtain a second incomplete set of projection data in a second scan mode; reconstructing a first attenuation coefficient image of the object from the first set of projection data, and extracting, from the first attenuation coefficient image, prior structure information of the object indicating edge intensity; and reconstructing a second attenuation coefficient image of the object from the second incomplete set of projection data using the extracted prior structure information as a constraint. With the method using the prior structure information of the imaged object as a constraint in reconstruction, it is possible to dramatically reduce an amount of data required for reconstruction, and achieve satisfactory effects even with ill-conditioned problems of limited-angle and inner reconstruction.

Abstract: In one embodiment, a method of displaying image in an imaging system is provided. The method comprises steps obtaining an image from an radiation detector, receiving a selection for orientation from a user, mechanically rotating the radiation detector based on the selection for orientation and performing a digital image rotation on the image complementing the mechanical rotation of the radiation detector such that the image is rotated to the orientation selected by the user and displaying the image.

Abstract: An etalon has a pair of transparent components; a ring-shaped piezoelectric member which is provided between the pair of transparent components, which is bonded to the pair of transparent components, and which is provided with metal films on the surfaces which face the transparent component sides; and the external connecting terminals which are provided on the transparent components and which are connected to the metal films.

Abstract: A mobile digital fluoroscopy system comprises either a G-arm (18) stand (1) having two X-ray beam transmitter (21,23)/receiver (22,24) pairs arranged at right angles to each other or a C-arm having a single transmitter/receiver pair. Protective collimator shutter plates (1060) at each transmitter limit the X-ray irradiation area. These collimator plates are properly adjusted via servo motors prior to or during the operation, by fingertip movements, touching collimator representations on a touchscreen for each transmitter/receiver pair, to provide both protection to the surgeon and patient and sufficient fluoroscopic view to the surgeon of the operation site of interest in the body.

Abstract: One embodiment of the present disclosure is directed to a mobile X-ray unit. The mobile X-ray unit may include a base and an arm associated with the base. The arm may be configured to support an X-ray applicator having an X-ray tube. The X-ray tube may be configured to generate an X-ray beam. The X-ray applicator may include an exit surface through which the X-ray beam passes in use. The X-ray unit may further include an applicator cap for covering at least the exit surface of the X-ray applicator.

Abstract: An imaging detector includes a scintillator having a scintillator pixel that is configured to emit light. The detector also includes a photosensor that defines a photosensor pixel that is configured to absorb light emitted by the scintillator pixel. A lens is positioned between the scintillator pixel and the photosensor pixel for directing light emitted from the scintillator to the photosensor pixel. The lens is configured to converge light emitted from the scintillator pixel toward the photosensor pixel.

Abstract: One embodiment of the present disclosure is directed to a mobile X-ray unit. The mobile X-ray unit may include a base for accommodating a control unit for controlling an X-ray applicator and a power supply for supplying power to the X-ray applicator. The mobile X-ray unit may further include an articulated arm associated with the base and coupled to the X-ray applicator. The X-ray applicator may have an X-ray tube configured to emit an X-ray beam through an exit window to irradiate an object. The mobile X-ray unit may further include a dosimetry system adapted for real time dosimetry.

Abstract: The present invention provides a method and device for acquiring real-time video images of a terminal, sad method comprising: acquiring light intensity of an existing environment when the terminal acquires the real-time video images; comparing the light intensity of the existing environment with a light intensity threshold value set by the terminal system; acquiring images preset by the terminal and sending the preset images to an existing receiver which is communicating with the terminal if the light intensity of the existing environment is lower than the light intensity threshold value set by the terminal system. The present invention can ensure the quality of video conversation when the light intensity is weak, save power energy, improve the user experience, and is beneficial to promote the video communication terminal.

Abstract: A collimator for adjusting the shape of a region irradiated by radiation and a control method thereof. The collimator includes a plurality of irises to adjust the shape of the irradiation region, a light source outputting light to display the irradiation region, a reflective mirror to adjust a path of light radiated from the light source toward the irradiation region, and an image output unit outputting to the irradiation region a visible image representing the shape of a target object for radiography or a mark indicating the center of the radiation region.

Abstract: One embodiment of the present disclosure is directed to a mobile X-ray unit. The mobile X-ray unit may include a base for accommodating a control unit configured to control an X-ray applicator and a power supply configured to supply power to the X-ray applicator. The mobile X-ray unit may further include an articulated arm associated with the base. The arm may be configured to support the X-ray applicator. The X-ray applicator may have an X-ray tube for emitting an X-ray beam for irradiating an object. The mobile X-ray unit may further include a phantom-based dosimetry system configured to perform a dosimetry check of the X-ray beam.

Abstract: Provided are an X-ray analyzer and a mapping method for an X-ray analysis which, in a inspection for a harmful substance contained in, for example, a material or a composite electronic component, enable determination as to whether a sample is normal or abnormal to be performed visually based on an image obtained by the X-ray mapping analysis. In the X-ray analyzer, an X-ray mapping image of a sample which is confirmed to be normal in advance is obtained as a reference mapping image. A mapping analysis is performed on a inspection sample. A difference from the reference mapping image is obtained for each pixel, to thereby display a difference mapping image. A region in which the amount of specific element is larger than a reference amount is displayed with high brightness, and hence an abnormal portion may be easily found.

Abstract: Various methods and systems are provided for multi-resolution x-ray image capture. In one embodiment, a method includes repositioning an image capture assembly of an x-ray image capture apparatus from a first position to a second position, the first position corresponding to a first pixel density resolution and the second position corresponding to a second pixel density resolution; activating an x-ray source; and obtaining a digital x-ray image of a subject from an imaging sensor of the image capture assembly, the digital x-ray image having the second pixel density resolution.

Abstract: Various methods and systems are provided for multi-resolution x-ray image capture. In one embodiment, a method includes repositioning an image capture assembly of an x-ray image capture apparatus from a first position to a second position, the first position corresponding to a first pixel density resolution and the second position corresponding to a second pixel density resolution; activating an x-ray source; and obtaining a digital x-ray image of a subject from an imaging sensor of the image capture assembly, the digital x-ray image having the second pixel density resolution.

Abstract: An X-ray line-scan camera utilizes an image transferring means to alter the optical path and thus eliminates the X-ray radiation damage on the electrical components of the camera system. The camera comprises a layer of scintillating material, a fiber optic face plate (FOFP) block, and an array of image sensors. One face of the FOFP block is bonded to the surface of the image sensors. The layer of scintillating material is placed on other face of the FOFP block and used to convert an impinging X-ray beam into visible light. The FOFP block is used to transfer the visible light from the scintillating layer onto the image sensor array, which in turn converts the visible light into electrical video signals. The FOFP block has a rotation angle of 32 to 40 degree relative to the impinging X-ray beam to prevent direct impingement of the X-ray beam onto the image sensors.

Abstract: The invention relates to a method for calibrating a C-arm x-ray apparatus, comprising the following steps: a) the C-arm x-ray apparatus is moved to an initial position, in particular to an anterior-posterior position; b) a calibration image is produced; c) the position of the centre of projection in the radiation source of the C-arm x-ray apparatus is determined from the information of the calibration image and stored together with associated values for the orbital angle and the polar angle of the arm of the C-arm x-ray apparatus; d) the arm is moved to a number of calibration positions in a range of orbital angles and polar angles, and the relative position of the radiation source and the image intensifier of the C-arm x-ray apparatus is directly measured for each calibration position; e) the change in the position of the radiation source relative to the image intensifier of the C-arm x-ray apparatus is measured for each calibration position; f) the position of the centre of projection which applies to each

Abstract: A method for transforming radiological image data from a digital receiver obtains digital image data values from the digital receiver and compensates for exposure response differences between a screen film system and the digital receiver. Modulation transfer function differences between the screen film system and the digital receiver are compensated and noise content at frequencies approaching the Nyquist frequency for the digital receiver is suppressed.

Abstract: In a medical image diagnostic device, wherein X-Ray CT devices and PET devices are longitudinally disposed, and which has a tubular imaging part for positioning a subject who is placed on the top surface of a bed and collecting image data, an illumination part is provided for producing a suitable level of brightness to the display part, which is for providing information to the subject without having to adopt every imaging position within the tubular imaging part, and to the imaging part.

Abstract: A region of interest information obtaining section obtains the size and position of a region of interest within a radiation image of a subject. A position calculating section calculates positions for a radiation source and a detecting panel that enable appropriate radiation imaging of the region of interest, employing the region of interest information. A moving section moves the radiation source and the detecting panel to the positions calculated by the position calculating section. Radiation images of the subject are obtained while rotating the radiation source and the detecting panel about a rotating axis that passes through a predetermined position at which the subject is placed.

Abstract: A method of tracking a guidewire in video imagery includes: obtaining a first video image including pixels associated with features of a guidewire; selecting a set of parameters to define an open curve on the first video image; determining a feature map of the first video image using phase congruency; and updating the parameters of the open curve using the feature map to align the open curve to the pixels associated with the features of the guidewire.

Abstract: The system includes a conductive window, a spectrum changing layer, a fiber optic bundle, a camera sensor, and a power supply. The spectrum changing layer is excited by the x-rays and emits a different wavelength of light, such as visible light. The fiber optic bundle receives the visible light from the spectrum changing material and transmits the visible light to the camera sensor. The camera sensor detects the light emitted from the spectrum changing layer and converts the information to electronic signals. The camera sensor is cooled by a cooling device, as such thermal conduction may cool the fiber optic bundle. To avoid condensation, current may flow through the conductive window thereby heating the conductive window.

Abstract: A region of interest information obtaining section obtains the size and position of a region of interest within a radiation image of a subject. A position calculating section calculates positions for a radiation source and a detecting panel that enable appropriate radiation imaging of the region of interest, employing the region of interest information. A moving section moves the radiation source and the detecting panel to the positions calculated by the position calculating section. Radiation images of the subject are obtained while rotating the radiation source and the detecting panel about a rotating axis that passes through a predetermined position at which the subject is placed.

Abstract: A radiation image photographing apparatus is formed with a photographing unit that includes a radiation emission means for emitting radiation, a radiation image detection means for recording a radiation image, a region of interest indication means for indicating a mark on a site of a subject corresponding to the region of interest specified in the radiation image, and the like; a computer having an input means, such as a mouse; and a monitor, in which a radiation image obtained by photographing is displayed on the monitor to have the user to specify a region of interest through the input means, and when coordinate information of the region of interest in the image is received from the computer, photographing unit, based on this, controls the region of interest indication means to automatically indicate a mark on a site of the subject corresponding to the region of interest.

Abstract: An imaging apparatus in which positions of an X-ray image and optical image of a subject can be brought into registration with each other is provided. A half-mirror is provided between the X-ray source and subject and is configured to pass X-rays and reflect visible light. A TV camera captures the optical image of the surface of the subject reflected by the half-mirror. A display unit displays the optical image captured by the TV camera together with a reference mark indicating the reference position of this optical image, and displays, in superimposed form, an X-ray image obtained by capturing a prescribed reference object as a subject by using an X-ray imaging unit. An adjusting unit adjusts position and attitude of an X-ray detector in such a manner that the reference object displayed by the display unit will coincide with the reference mark.

Abstract: An X-ray imaging apparatus includes a visible light imaging unit which captures an image of a visual field region with visible light, an X-ray irradiation unit which irradiates X-rays, an X-ray imaging unit which receives the irradiated X-rays and acquires a radiograph based on the X-rays, and a detection unit which detects an irradiated region irradiated with the X-rays based on the acquired radiograph.

Abstract: In a device and method for processing and presenting x-ray images, an x-ray image of a subject is acquired with an x-ray acquisition cone simultaneously with the acquisition of an optical exposure of the examination subject with an optical acquisition cone that is congruent with the x-ray acquisition cone. The subject in the optical exposure is subjected to segmentation and/or edge extraction, and the extracted optical exposure and the x-ray image are additively combined so that the subject edges from the optical exposure are inserted into the x-ray image.

Abstract: There are provided an X-ray CT system and an X-ray CT method in which a subject can be brought as close as possible to an X-ray source at all times while preventing interference of the subject with the X-ray source at the time of rotation, without confirmation by an operator by rotating a rotary stage before CT projection. A subject W placed on a rotary stage 3 is captured by an optical camera 6, and information about a shape, a size and a position relative to a rotational axis R, of the subject W, are acquired by image processing using captured data. Then, interference between the subject W and an X-ray source 1 is monitored on the basis of the information, or the rotary stage 3 is automatically positioned at a location where the subject approaches most closely to the X-ray source 1 without interference.

Abstract: An X-RAY CONVERTER having a light-proof housing with an X-ray-transparent wall behind which there are fastened an X-ray-to-optical converter, a filter of residual X-radiation, an objective lenses unit, and a photodetector containing at least two optoelectronic converters with partly overlapping fields of view and separated electrical outputs for connection to a system for processing of fragmentary video signals and generating an integral output video signal.

Abstract: Systems and methods are presented herein for generating an X-ray image where the X-ray image generator has no electrical connection with an X-ray source that generates the X-rays. In an exemplary embodiment a gamma detector is positioned behind an x-ray permeable mirror within an X-ray capture device. When the gamma ray detector senses gamma radiation over a threshold level, a camera, positioned outside of the X-ray path, begins capturing an image of the X-ray. The image is then discarded if an X-ray image profile is not then detected by the gamma detector within a period of time. Such an X-ray image profile may be detected if two or more X-ray pulses with similar intensity and duration are detected within a set period of time. If an X-ray image profile is detected, then the camera continues recording the X-ray image for a predetermined time.

Abstract: Systems and methods are presented herein for generating an X-ray image where the X-ray image generator has no electrical connection with an X-ray source which generates the X-rays. In an exemplary embodiment a photon sensor is positioned behind an x-ray permeable mirror. When the photon sensor senses photons, a camera, positioned outside of the X-ray path, captures a picture containing the X-ray data. A second mirror is positioned such that the path of the X-ray image is folded such that the camera can be positioned outside of the X-ray path, but that the X-ray image still strikes the camera lens. The X-ray data is then sent to a computer for processing. Parameterization is applied to the X-ray data based upon at least one of the species of the animal being taken, the body part depicted in the X-ray, the view depicted and the amount of energy used by an X-ray generator to take the X-ray.

Abstract: An X-ray machine includes a radiation source and an image intensifier. A digital camera is downstream of the image intensifier and includes a pixel matrix, wherein the pixel matrix is switchable between a high and a low resolution. The image intensifier displays on an output screen, an image that is dependent on the incident X-radiation and that is picked up by the camera. Imaging behavior of the image intensifier, and thus the sharpness of the image displayed on the output screen, vary depending on the resolution set for the camera.

Abstract: A method of measuring in real time a dose of radiological radiation absorbed by a region under inspection subjected to a flux of radiological radiation, the method comprising the steps consisting in: a) detecting the incident radiation at at least one point of the region under inspection using at least a first bundle of measurement optical fibers (2) containing at least one fiber placed in said region under inspection and adapted to generate a light signal on receiving radiological radiation; b) measuring said light signal away from the region under inspection after it has been transmitted along the measurement optical fiber; and c) determining the dose of radiological radiation received by said measurement optical fiber on the basis of said light signal.

Abstract: A radiation image pick-up apparatus includes a conversion element, accumulation element, read element, detection element, driving circuit, and controller. The conversion element converts radiation into an electrical signal. The accumulation unit accumulates the electrical signal converted by the conversion element. The read unit reads out the electrical signal accumulated in the accumulation unit. The detection element detects the start and end of irradiation of the radiation. The driving circuit accumulates the electrical signal in the accumulation element responsive to the detection of start of irradiation of the radiation, and drives the read element responsive to the detection of the end of irradiation of the radiation, based on the detection result of the detection element. The controller controls the driving circuit. A radiation image pick-up system is also disclosed.

Abstract: A high resolution magnifying X-ray fluoroscope using a low dose beam includes a scintillator for receiving an X-ray beam and converting the X-ray energy into visible light. The scintillator is in intimate optical contact with a non-demagnifying image intensifier that presents the visible light image through a close-up lens system to an optically magnifying, autofocus, programmable, closed circuit video camera. The fluoroscope is mounted on a moveable frame in a position that is opposed to an X-ray source.

Abstract: A radiographic imaging device includes an X-ray source having a finite focal spot characterized by a determined intensity distribution. The X-ray source emits a beam of X-ray radiation toward an object. A detector assembly receives at least part of the X-ray radiation after it passes through the object. The detector assembly produces a signal in response to the received radiation. An image processor constructs an image from the signal generated by the detector assembly using the determined intensity distribution of the X-ray source. By inverse filtering the aggregated detector image from the detector assembly, the effects of the finite focal spot size of the X-ray source are mitigated, improving the quality of the resulting image.

Abstract: A digital x-ray phase contrast soft tissue imaging and mammography system offers significant cancer detection sensitivity and a significant improvement in accurate detection and interpretation of mammograms. In addition, the proposed system produces digital mammograms and thus has the advantages of digital mammography. The system overcomes the limitation of the current approaches to mammography using phase contrast effects and offers substantially higher performance than the current mammography used in hospitals and clinics. The proposed system uses the phase contrast imaging, in a breast and other soft tissue structures, instead of absorption contrast employed in the current x-ray mammography, allowing detection of smaller disease structures with substantial reduction in radiation dose.

Abstract: A radiation damage resistant linear X-ray detector array system based on a unique focusing principle reduces or eliminates the X-ray radiation damage on the electrical components of the detector system. The system includes a layer of scintillating material, a rod lens array, and an array of image sensors. The layer of scintillating material, such as Gd2O2S:Tb (GOS or GADOX), CsI(TI), or CdWO4, is placed on an image plane and used to convert the impinging X-ray energies into visible light which can be detected efficiently by the image sensor array. The rod lens array is used to focus the visible light after the X-ray flux has been converted. The photon energy of the visible light is collected with a scanning image sensor array that converts the photon energy proportionally into electrical video signals and enables the signals to be processed using standard signal and image processing software and equipment.

Abstract: A circuit board inspection system combining an X-RAY inspection and a visual inspection comprises a transfer unit (3) that lands an inspected object (1) safely thereon and transfers the inspected object (1) to a predetermined position; a light generating unit (5) that is installed below the transfer unit (3) and emits a light having a predetermined wavelength to the inspected object (1); a light amplifying unit (7) that is installed on the opposite side of the light generating unit (5) to convert and amplify a predetermined light that transmits the inspected object (1) into a visible light; an optical unit (9) that optically illuminates the inspected object (1) to create a visual image; and a camera (11) that receives an X-ray image amplified through the light amplifying unit (7) or a visual image by the optical unit (9) to obtain information.

Abstract: This invention relates to an optically coupled digital radiography method and apparatus for simultaneously obtaining two distinct images of the same subject, each of which represents a different x-ray energy spectrum. The two images may be combined in various ways such that anatomical features may be separated from one another to provide a clearer view of those features or of underlying structures. The two different images are obtained using a pair of scintillators separated by an x-ray filter that attenuates part of the x-ray spectrum of an x-ray exposure such that the first and second scintillators receive a different energy spectrum of the same x-ray exposure. Alternatively, the two different images can be obtained without a filter and with two scintillators made of different fluorescing materials that react differently to the same x-ray exposure.

Abstract: A radiation damage resistant linear X-ray detector array system based on a unique focusing principle reduces or eliminates the X-ray radiation damage on the electrical components of the detector system. The system includes a layer of scintillating material, a rod lens array, and an array of image sensors. The layer of scintillating material, such as Gd2O2S:Tb (GOS or GADOX), CsI(TI), or CdWO4, is placed on an image plane and used to convert the impinging X-ray energies into visible light which can be detected efficiently by the image sensor array. The rod lens array is used to focus the visible light after the X-ray flux has been converted. The photon energy of the visible light is collected with a scanning image sensor array that converts the photon energy proportionally into electrical video signals and enables the signals to be processed using standard signal and image processing software and equipment.

Abstract: A digital X-ray system for capturing high quality images by maximizing the collection of emitted light from an intensifying screen in response to X-ray impact. The digital X-ray system includes a housing having a fluorescent intensifying screen for receiving emitted X-rays, two reflectors for maximizing light collection and optimizing the light path from the intensifying screen, and a lens assembly. A CCD chip receives the light from the lens assembly, to provide a digital image for immediate on-board processing or post-processing by a computer. The housing is compact, and can be used as a direct replacement for traditional film cartridges without major modifications to the system. The lens assembly includes freeform matched lenses to remove optical distortions, and the housing includes a light sensor for providing exposure measurement and feedback. The system is designed to be quasi-monochromatic to maintain consistent image quality over the entire area of the intensifying screen.

Abstract: A digital dual-band detector functions as an imaging platform capable of extracting hard and soft tissue images, for example. The detector has a first detector system comprising a first scintillator for converting x-rays from a sample to an first optical signal, and a first detector for detecting the first optical signal in combination with a second detector system comprising a second scintillator for converting x-rays from the sample and passing through the first scintillator to a second optical signal, and a second detector for detecting the second optical signal. The detector can facilitate the implementation and deployment of recent developments and can permit low cost practical deployment in clinical applications as well as biomedical research applications where significant improvement in spatial resolution and image contrast is required.

Abstract: Systems and methods are presented herein for generating an X-ray image where the X-ray image generator has no electrical connection with an X-ray source which generates the X-rays. In an exemplary embodiment a photon sensor is positioned behind an x-ray permeable mirror. When the photon sensor senses photons, a camera, positioned outside of the X-ray path, captures a picture containing the X-ray data. A second mirror is positioned such that the path of the X-ray image is folded such that the camera can be positioned outside of the X-ray path, but that the X-ray image still strikes the camera lens. The X-ray data is then sent to a computer for processing. Parameterization is applied to the X-ray data based upon at least one of the species of the animal being taken, the body part depicted in the X-ray, the view depicted and the amount of energy used by an X-ray generator to take the X-ray.

Abstract: The invention relates to an X-ray apparatus for forming X-ray images, which apparatus includes an X-ray detector (4) for the conversion of X-rays into electrical signals, a detector exposure unit (5) for the emission of electromagnetic radiation in dependence on how first and second exposure parameters, the value of the first exposure parameters being defined by the acquisition mode whereas the second exposure parameters are not defined by the acquisition mode, and also a control unit (13) for changing and controlling at least one second exposure parameter of the detector exposure unit upon a change of the acquisition mode.