Abstract: A probe head with a cylindrical portion and an oblique truncated portion angled downward toward a high-powered electronic device under testing. The probe head has a proximal end comprising an oblique truncated cone portion angled relative to the longitudinal axis at an input angle and has an analog signal input. The probe head has a digital signal output provided on the distal end of the housing.

Abstract: The present invention relates to medical X-ray imaging. In order to provide further facilitated positioning of a medical X-ray imaging apparatus, a device (10) for support in positioning a medical X-ray imaging apparatus is provided. The device comprises an input unit (12), a processing unit (14) and an output unit (16). The input unit is configured to receive a 3D motion-model of a currently used X-ray imaging apparatus; and to receive a 3D model of a subject suitable for a calculation of virtual X-ray projections. The input unit is also configured to receive current 3D spatial context data in relation to a current location and orientation of the X-ray imaging apparatus, the 3D spatial context data comprising at least one of the group of a current arrangement of an object support, a current position of the subject on the object support, and objects or persons currently located in a potential moving area of the X-ray imaging apparatus.

Abstract: The disclosure relates to an X-ray imaging system for acquiring two-dimensional or three-dimensional images of a subject. A relative position of an X-ray emitting region, as seen in a coordinate system which is stationary relative to an anti-scatter arrangement and/or an X-ray sensitive surface is controlled so that a first and a second image are acquired at different relative positions of the X-ray emitting region relative to the anti-scatter arrangement and/or the X-ray sensitive surface (10). A data processing system of the imaging system generates an output image, based on each of the images. In the output image, artefacts generated by the anti-scatter arrangement, are reduced, suppressed or eliminated compared to the first and the second image.

Abstract: The present invention relates to an apparatus (10) for processing of data acquired by a dark-field and/or phase contrast X-ray imaging system, the apparatus comprising an input unit (20), and a processing unit (30). The input unit is configured to provide the processing unit with blank scan fringe data acquired by a dark-field and/or phase contrast X-ray imaging system comprising an interferometry arrangement and detector. The input unit is configured to provide the processing unit with sample scan fringe data acquired by the dark-field and/or phase contrast X-ray imaging system, with an object to be imaged is positioned within the dark-field and/or phase contrast X-ray imaging system. The processing unit is configured to pre-process the blank scan fringe data to determine pre- processed blank scan fringe data comprising utilization of an effective point spread function “PSF”.

Abstract: The disclosure relates to an X-ray imaging system for acquiring two-dimensional or three- dimensional images of a subject. A relative position of an X-ray emitting region, as seen in a coordinate system which is stationary relative to an anti-scatter arrangement and/or an X-ray sensitive surface is controlled so that a first and a second image are acquired at different relative positions of the X-ray emitting region relative to the anti-scatter arrangement and/or the X-ray sensitive surface (10). A data processing system of the imaging system generates an output image, based on each of the images. In the output image, artefacts generated by the anti-scatter arrangement, are reduced, suppressed or eliminated compared to the first and the second image.

Abstract: A threaded nut for a ball screw drive is provided. The threaded nut includes a cylindrical central piece ending at a flange. A deflecting body is attached to the cylindrical central piece and is configured to recirculate balls during operation of the threaded nut. A pin fixes the deflecting body to the flange. In embodiments, the flange and the deflecting body each have recesses that are aligned with one another, and the pin extends through those recesses.

Abstract: The present invention relates to an apparatus (10) for processing of data acquired by a dark-field and/or phase contrast X-ray imaging system, the apparatus comprising an input unit (20), and a processing unit (30). The input unit is configured to provide the processing unit with blank scan fringe data acquired by a dark-field and/or phase contrast X-ray imaging system comprising an interferometry arrangement and detector. The input unit is configured to provide the processing unit with sample scan fringe data acquired by the dark-field and/or phase contrast X-ray imaging system, with an object to be imaged is positioned within the dark-field and/or phase contrast X-ray imaging system. The processing unit is configured to pre-process the blank scan fringe data to determine pre- processed blank scan fringe data comprising utilization of an effective point spread function “PSF”.

Abstract: The present invention relates to spectral correction. A spectral correction apparatus is described that is configured to identify a voltage fluctuation in the X-ray tube and to parameterize the high voltage fluctuation to correct the effective X-ray spectrum per individual frame.

Abstract: An X-ray imaging system (XI) configured for phase contrast and/or dark-field imaging The system comprises an X-ray source (XS) operable to cause X-radiation to emanate from a focal spot (SF) of the source (XS) and an X-ray sensitive detector (D) operable to SMF detect the X-radiation after interaction of said X-radiation with an object to be imaged, if present, between the X-ray source and the detector (D). A control logic (CL) is operable to cause the X-ray imaging apparatus to operate in any one of two modes, an object image acquisition mode and a scattering measurement mode. When in scattering measurement mode, the X-radiation receivable at the detector comprises a higher proportion of scattering radiation than in X-radiation receivable when the system is in object image acquisition mode.

Abstract: The present invention relates to medical X-ray imaging. In order to provide further facilitated positioning of a medical X-ray imaging apparatus, a device (10) for support in positioning a medical X-ray imaging apparatus is provided. The device comprises an input unit (12), a processing unit (14) and an output unit (16). The input unit is configured to receive a 3D motion-model of a currently used X-ray imaging apparatus; and to receive a 3D model of a subject suitable for a calculation of virtual X-ray projections. The input unit is also configured to receive current 3D spatial context data in relation to a current location and orientation of the X-ray imaging apparatus, the 3D spatial context data comprising at least one of the group of a current arrangement of an object support, a current position of the subject on the object support, and objects or persons currently located in a potential moving area of the X-ray imaging apparatus.

Abstract: An image processing system and related method. The system comprises an input interface (IN) for receiving dark-field image data obtained from imaging of an object (OB) with an X-ray imaging apparatus (XI). A corrector module (CM) of the system (IPS) is configured to perform a correction operation to correct said dark-field image data for Compton scatter to obtain Compton-Scatter corrected image data. The so Compton scatter corrected image data is output by an output interface (OUT) of the system.

Abstract: An interventional X-ray system is proposed, the system including a multi X-ray source unit positioned below a patient table. This ‘multiblock’ may comprise several x-ray sources with focal spot positions distributed along the x-y (table) plane. The x-ray sources are operable in a switching scheme in which certain x-ray sources may be activated in parallel and also sequential switching between such groups is intended. The switching may be carried out so that several images with different projection angles can be acquired in parallel. In other words, an optimal multi-beam X-ray exposure is suggested, wherein fast switching in one dimension and simultaneous exposure in the 2nd dimension is applied.

Abstract: The present invention relates to a device for determining a focal spot size, and/or a pulse duration, and/or an X-ray intensity for an X-ray pulse for a sequential X-ray imaging apparatus, the device (1) comprising: a receiving unit (2); a mode determining unit (3); and a transmitting unit (4); wherein the receiving unit (2) is configured to receive a status signal (24) indicating a motion status of an object of interest (7); wherein the mode determining unit (3) is configured to determine an acquisition mode based on the indicated motion status of the object of interest (7); wherein the acquisition mode defines a focal spot size, and/or a pulse duration, and/or an X-ray intensity for an X-ray pulse for a sequential X-ray imaging apparatus (10); wherein the focal spot size, and/or the pulse duration, and/or X-ray intensity for an X-ray pulse are adapted to the motion status of the object of interest (7); and wherein the transmitting unit (4) is configured to provide a mode signal indicating the determined acq

Abstract: An image processing system and related method. The system comprises an input interface (IN) for receiving dark-field image data obtained from imaging of an object (OB) with an X-ray imaging apparatus (XI). A corrector module (CM) of the system (IPS) is configured to perform a correction operation to correct said dark-field image data for Compton scatter to obtain Compton-Scatter corrected image data. The so Compton scatter corrected image data is output by an output interface (OUT) of the system.

Abstract: The present invention relates to an apparatus for determining an effective energy spectrum of an X-ray tube. It is described to provide (210) a temporally varying acceleration voltage of an X-ray tube for a time period. A temporally varying X-ray tube current is also provided (220) for the time period. At least one product of the temporally varying X-ray tube current and a time interval is determined (230). An effective energy spectrum of the X-ray tube processing the X-ray tube is determined (250) as a function of the at least one product of the temporally varying X-ray tube current and the time interval and as a function of the voltage of the X-ray tube.

Abstract: A threaded nut for a ball screw drive is provided. The threaded nut includes a cylindrical central piece ending at a flange. A deflecting body is attached to the cylindrical central piece and is configured to recirculate balls during operation of the threaded nut. A pin fixes the deflecting body to the flange. In embodiments, the flange and the deflecting body each have recesses that are aligned with one another, and the pin extends through those recesses.

Abstract: A medical imaging system for providing X-ray image data of an object including at least one X-ray detector, an X-ray source arrangement, and a patient configured to receive an object for imaging a region of interest of the object. The at least one X-ray detector is movably mounted above the patient table; and the at least one X-ray detector and the X-ray source arrangement are movable independently. The X-ray source arrangement includes a physical trajectory support structure and is configured to provide X-ray radiation to the region of interest from a number of positions forming a concave open trajectory, wherein a portion of the trajectory and/or the physical trajectory support structure is located below the patient table; and wherein two end regions of the trajectory are extending on the two lateral sides of above the table.

Abstract: An X-ray imaging system for generating X-ray projections of an object, the X-ray imaging system including an X-ray device having a single X-ray source (110) for forming a plurality of X-ray beams (104), a filter (120) positioned within the plurality of X-ray beams, an object space where the object to be imaged is accommodated, and an X-ray detector (150) including an array of a plurality of pixels (151 . . . 155). The X-ray device, the filter, and the plurality of pixels are configured such that at least one pixel is exposed to the plurality of X-ray beams. X-ray radiation received by a particular pixel undergoes a same spectral filtration by the filter. Pixels receiving the X-ray radiation undergoing the same spectral filtration are summarized to a pixel subset.

Abstract: An interventional X-ray system is proposed, the system including a multi X-ray source unit positioned below a patient table. This ‘multiblock’ may comprise several x-ray sources with focal spot positions distributed along the x-y (table) plane. The x-ray sources are operable in a switching scheme in which certain x-ray sources may be activated in parallel and also sequential switching between such groups is intended. The switching may be carried out so that several images with different projection angles can be acquired in parallel. In other words, an optimal multi-beam X-ray exposure is suggested, wherein fast switching in one dimension and simultaneous exposure in the 2nd dimension is applied.

Abstract: The present invention relates to an apparatus for determining an effective energy spectrum of an X-ray tube. It is described to provide (210) a temporally varying acceleration voltage of an X-ray tube for a time period. A temporally varying X-ray tube current is also provided (220) for the time period. At least one product of the temporally varying X-ray tube current and a time interval is determined (230). An effective energy spectrum of the X-ray tube processing the X-ray tube is determined (250) as a function of the at least one product of the temporally varying X-ray tube current and the time interval and as a function of the voltage of the X-ray tube.