A dental or medical CT imaging apparatus including a first longitudinally extending frame part. A support, construction extends substantially perpendicularly from the longitudinally extending frame part. An X-ray source and an image detector which together form an X-ray imaging assembly are mounted to the support construction. A first driving mechanism is provided to move the X-ray imaging assembly about a virtual or physical rotation axis. A control system having at least one operation mode that simultaneously controls the first driving mechanism and the X-ray imaging assembly is provided. The support construction includes at least one guiding mechanism configured to enable laterally moving at least one of the X-ray source and the image detector in relation to the support construction. A range of the lateral movement of at least one of the X-ray source and the image detector includes a base position and a first and a second extreme position.

The present disclosure relates to the field of a cabinet x-ray incorporating a stationary x-ray source array, and an x-ray detector, for the production of organic and non-organic images. Stationary x-ray digital cabinet tomosynthesis systems and related methods are disclosed. According to one aspect, the subject matter described herein can include an x-ray tomosynthesis system having a plurality of stationary field emission x-ray sources configured to irradiate a location for positioning an object to be imaged with x-ray beams to generate projection images of the object. An x-ray detector can be configured to detect the projection images of the object. A projection image reconstruction function can be configured to reconstruct tomography images of the object based on the projection images of the object. In the preferred embodiment, the x-ray source or sources are statically affixed in a range from about 350° to and including about 10°.

An X-ray detector (10) for a phase contrast imaging system (100) and a phase contrast imaging system (100) with such detector (10) are provided. The X-ray detector (10) comprises a scintillation device (12) and a photodetector (14) with a plurality of photosensitive pixels (15) optically coupled to the scintillation device (12), wherein the X-ray detector (10) comprises a primary axis (16) parallel to a surface normal vector of the scintillation device (12), and wherein the scintillation device (12) comprises a wafer substrate (18) having a plurality of grooves (20), which are spaced apart from each other. Each of the grooves (20) extends to a depth (22) along a first direction (21) from a first side (13) of the scintillation device (12) into the wafer substrate (18), wherein each of the grooves (20) is at least partially filled with a scintillation material. Therein, the first direction (21) of at least a part of the plurality of grooves (20) is different from the primary axis (16), such that at least a part of the plurality grooves (20) is tilted with respect to the primary axis (16). An angle between the first direction (21) of a groove (20) arranged in a center region (24) of the scintillation device (12) and the primary axis (16) is smaller than an angle between the first direction (21) of a groove (20) arranged in an outer region (26) of the scintillation device (12) and the primary axis (16).

Disclosed is a portable X-ray generation device, which uses an electric field emission X-ray source, and is thus advantageous in reducing weight and volume and has excellent reliability in X-ray emission performance. The portable X-ray generation device according to the present invention includes an electric field emission X-ray source, which includes a cathode electrode having an electron emitter, an anode electrode having an X-ray target surface, and a gate electrode between the cathode electrode and the anode electrode; and a driving signal generator configured to generate at least three driving signals applied to the cathode electrode, the anode electrode, and the gate electrode, respectively, by direct current power having a predetermined voltage, wherein the driving signal generator includes a current controller maintaining a tube current between the anode electrode and the cathode electrode to have a constant value during X-ray emission.

Versatile, multimode radiographic systems and methods utilize portable energy emitters and radiation-tracking detectors. The x-ray emitter may include a digital camera and, optionally, a thermal imaging camera to provide for fluoroscopic, digital, and infrared thermal imagery of a patient for the purpose of aiding diagnostic, surgical, and non-surgical interventions. The emitter may cooperative with an inventive x-ray capture stage that automatically pivots, orients and aligns itself with the emitter to maximize exposure quality and safety. The combined system uses less power, corrects for any skew or perspective in the emission, allows the subject to remain in place, and allows the surgeon's workflow to continue uninterrupted.

Systems and methods for determining an offset of a position of a focal point of an X-ray tube is provided. The methods may include obtaining at least one parameter associated with an X-ray tube during a scan of a subject and obtaining a position of a focal point of the X-ray tube. The methods may further include determining a target offset of the position of the focal point based on the at least one parameter and a target relationship between a plurality of reference parameters associated with the X-ray tube and a plurality of reference offsets of reference positions of the focal point. The methods may further include causing, based on the target offset, a correction on the position of the focal point of the X-ray tube.

A radiation-irradiation system includes a radiation generating device that includes an exposure switch unit and a display device that includes a touch panel; the display device is adapted to be detachably mounted on the radiation generating device and displays an exposure switch mark on the touch panel; and an emission control unit validly receives only an irradiation instruction for radiation of the exposure switch unit in a case in which the display device is installed on the radiation generating device, and validly receives only an irradiation instruction for radiation of the exposure switch mark in the case of a state in which the display device is separated from the radiation generating device.

Computed tomography (CT) imaging system has at least one processing unit configured to receive operator inputs that include a modified system feature and a clinical task having a task object and also receive operator inputs for determining a task-based image quality (IQ) metric. The task-based IQ metric represents a desired overall image quality of image data for performing the clinical task. The image data acquired using a reference system feature. The at least one processing unit is also configured to determine an exposure-control parameter based on the task object, the modified system feature, and the task-based IQ metric. The at least one processing unit is also configured to direct the x-ray source to generate the x-ray beam during the CT scan, wherein at least one of the tube current or the tube potential during the CT scan is a function of the exposure-control parameter.

Various methods and systems are provided for laser alignment systems, particularly laser alignment systems of medical imaging systems. In one example, a medical imaging system comprises: a gantry; and a laser mount including: a first section fixedly coupled to the gantry; a second section seated within the first section and slideable within the first section; and a third section seated within the second section and rotatable within the second section, the third section adapted to house a laser radiation source.

Systems and methods for generating tunable x-ray emissions including a tunable x-ray source that includes a driver, such as a laser, configured to generate one or more driver pulses, such as one or more laser pulses, and a target source configured to emit a target material. The target source is arranged so that the emitted target material intersects a propagation axis of the driver pulse(s) and the target source may be configured so that the emitted target material has a tailored density profile along the propagation axis of the driver pulse(s), the tailored density profile along the propagation axis having a first density peak region followed by a lower density region followed by a second density peak region, e.g., in an “M” shape.