The present invention relates to an X-ray imaging apparatus which obtains an X-ray image of a subject placed between a generator and a detector by means of the rotation of the generator and the detector. The X-ray imaging apparatus comprises: the generator and the detector, which are disposed to face each other while having an object to be imaged therebetween, for irradiating and detecting an X-ray; a rotation drive unit for rotating the generator and the detector while having the object to be imaged therebetween; and a bed in which a first portion for supporting the object to be imaged is disposed between the generator and the detector. When the height of at least one from among the generator and the detector is T1, the height of the other is T2, and the height of the first portion is T3, said T1, T2, and T3 are T1>T3>T2.

To appropriately perform long-sized imaging even in the case of performing long-sized imaging using different types of radiation detectors, a radiography system for generating a long-sized image by combining a plurality of items of image data obtained from a plurality of radiation detectors 120, 122, and 124 includes a determination unit 202, which determines whether or not long-sized imaging is possible on the basis of identification information and position information of the plurality of radiation detectors 120, 122, and 124.

The present disclosure relates to methods and systems for calibrating an X-ray apparatus. The X-ray apparatus may include an X-ray detector and a collimator. To calibrate the X-ray apparatus, the methods and systems may include moving the X-ray detector from a first position to a second position along a first axis of a coordinate system, wherein the first position is under a scanning table, and the second position is outside the scanning table; moving the collimator to align the collimator with the X-ray detector at the second position; determining one or more parameters; and determining a second value of the first encoder when the collimator is aligned with the X-ray detector at the first position based on the one or more parameters.

A method and a device of controlling the position of the X-ray tube of a computed tomography (CT) system may include: acquiring an AP signal output by an AP sensor of the CT system, an IP signal output by an IP sensor and encoder data output by a motor, determining a homing positioning signal AP.sub.0 of the AP signal based on the AP signal and the IP signal, where the homing positioning signal AP.sub.0 is used to determine the starting point of the period of rotation of the X-ray tube, utilizing the encoder data to calculate the encoder data containing AP signal based on the determined homing positioning signal AP.sub.0, where the encoder data containing AP signal is the AP signal processed by use of the encoder data, and controlling the position of the X-ray tube based on the encoder data containing AP signal.

An X-ray imaging apparatus includes an X-ray irradiation unit, an X-ray detection unit, and a correction information acquisition unit configured to identify an outer edge of each of a plurality of predetermined portions of one imaging target of the subject in an X-ray image and acquire position correction information for correcting a relative position of the X-ray irradiation unit with respect to the imaging target of the subject based on a positional relation between the identified outer edges of the plurality of the predetermined portions. The position correction information includes a relative moving direction and a movement amount for correcting the relative position of the X-ray irradiation unit with respect to the imaging target of the subject to a position where the X-ray image in which the positional relation between the outer edges of the plurality of predetermined portions is imaged can be captured.

At least one example embodiment provides a method for automatic positioning of an X-ray source of a medical X-ray system with a mobile X-ray detector. The method includes determining an examination region of the examination object, acquiring a position and a location of the examination object and the examination region by way of an optical position determining system, localizing the examination region, ascertaining a field point of the central ray of the X-ray source and a collimator size of the X-ray source based on the localized examination region, and automatic positioning of the X-ray source based on the field point and the collimator size.

A support arrangement for generating an X-ray image is provided. The arrangement includes a support structure configured to hold an image detector at a first end and an X-ray source at a second end, with a connection line in between on which an Iso-centre is located. The support structure connects to a primary supporting beam in a first pivotable connection point; the primary supporting beam connects to a secondary supporting beam in a second pivotable connection point; and the secondary supporting beam connects to a mounting arrangement in a third pivotable connection point. A rhombus shape is defined by: (i) a connection line between the first and second pivotable connection points; (ii) a connection line between the second and third pivotable connection points; (iii) a connection line between the third pivotable connection point and the Iso-centre; and (iv) a connection line between the Iso-centre and the first pivotable connection point.

The present invention relates to the mobility of an X-ray system. In order to provide X-ray imaging systems with improved mobility, a base (10) for a mobile X-ray imaging system is provided that comprises a carriage (12), a mounting structure (14) mounted to the carriage and a wheel base (16) with a wheel arrangement (18) of at least three wheels (20) mounted to the carriage, and a wheel controller (15). The mounting structure is configured to movably hold an X-ray imaging device. The carriage comprises a first end portion (22) and an opposite second end portion (24). The first end portion is configured as a front end arrangeable closer to an object during X-ray imaging, and the second end portion is configured as a rear end arrangeable away from an object during X-ray imaging. The first end portion and the opposite second end portion are arranged along a longitudinal center line (17) of the base. The at least three wheels are each mounted to the carriage to be pivotable around a vertical pivot axis (26) and to rotate around a horizontal wheel axis (28). At least two of the at least three wheels are forming rearside wheels (20.sub.RW) mounted in the region of the rear end; and at least one of the at least three wheels is forming a frontside wheel (20.sub.FW) mounted in the region of the front end. At least two of the rearside wheels are independently actively steerable in their orientation around the vertical pivot axis by a pivot actuator. The at least two of the rearside wheels are configured to be each independently actively drivable around their horizontal axis by a drive actuator to move the mobile base in relation to a floor. The wheel controller is configured to actively steer and drive at least the at least two of the rearside wheels such that the base rotates around a virtual point of rotation (VPR) that is aligned with the longitudinal center line of the base.

A rotary imaging system, a plant imager, an animal imager, and an animal and plant imager, relating to the technical field of living sample imaging. The plant imager, the animal imager, and the animal and plant imager all comprise a rotary imaging system. The rotary imaging system comprises the sample table unit is used for carrying a sample; the camera unit is used for imaging the sample; the rotation unit comprises an accommodating cavity accommodating the sample table unit, and the rotation unit is used for driving the camera unit to rotate with respect to the sample table unit and controlling the camera unit to be stationary with respect to the sample table unit. By means of rotary imaging system, powerful data support is provided for the subsequent image reconstruction and image fusion, and the number of cameras required for imaging different parts of a sample is also reduced.

A radiation apparatus including a support column, a rotatable arm that is configured to rotate around a first pivot relative to the support column, a first arm rotatably attached to one side of the rotatable arm to rotate about a second pivot, the first arm holding a imaging device, and a second arm rotatably attached to an other side of the rotatable arm to rotate about a third pivot, the second arm holding a radiation source, wherein radiation axis of the radiation source is configured to irradiate an imaging plane of the imaging device.