A radiation imaging apparatus comprises a radiation sensor configured to convert incident radiation to an electrical signal and a housing configured to encompass the radiation sensor, wherein a holding portion that is shaped as a recess is formed in a back face of the housing, the back face being on a side opposite to a radiation incident surface of the housing, and a member having a lower heat conductivity than a heat conductivity of the back face is arranged at a position corresponding to the holding portion in the back face.

A digital dental x-ray sensor device includes a rounded, three-dimensional housing that lacks corners, edges, or other relatively sharp features that are known to cause discomfort when used in a patient's mouth. The rounded housing can be spherical, ellipsoid, or any similar regular or irregular rounded shape, and can be formed by ensuring that all curves of the surface of the rounded housing have a minimum radius that is sufficient to prevent features that can dig into the soft tissue of the inside of a patient's mouth.

Various methods and systems are provided for x-ray imaging. In one embodiment, a method comprises acquiring, with an x-ray detector tilted at an angle with respect to an x-ray source, an x-ray image, calculating the angle from the x-ray image, generating a corrected x-ray image based on the calculated angle, and displaying the corrected x-ray image. In this way, tilt artifacts caused by the x-ray detector being tilted with respect to the x-ray source may be removed from an x-ray image.

The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).

A radiation detector according to an embodiment includes a plurality of radiation detector modules and a fixing frame. When a radiation detector module is attached to the fixing frame, a guiding part with a groove shape formed at an end of a support member of the radiation detector module on a side of the fixing frame is fitted to a guiding pin provided to an end of the fixing frame, so that the radiation detector module is positioned in a radiation irradiation direction while a movement thereof in a channel direction and a row direction is restricted.

A radiation imaging device according to one embodiment includes a radiation detection panel having a first surface on which a detection region is formed and an electrode pad is formed outside the detection region, and a second surface on a side opposite to the first surface, a base substrate having a support surface configured to face the second surface of the radiation detection panel and configured to support the radiation detection panel, and a flexible circuit substrate connected to the electrode pad via a connecting member, wherein an end portion of the base substrate is located further inward than an inner end portion of the connection region in which the electrode pad, the connecting member, and the flexible circuit substrate overlap each other when seen in an Z direction orthogonal to the support surface.

To optimize an image quality and/or a sensitivity, a Compton camera is adaptable. A scatter detector and/or a catcher detector may move closer to and/or further away from a patient and/or each other. This adaptation allows a balancing of the image quality and the sensitivity by altering the geometry.

A medical image apparatus includes a column coupled to a main body and vertically extending, a straight arm moving unit sliding in a longitudinal direction of the column and including a moving unit rotating shaft for rotating a straight arm, and the straight arm coupled to the straight arm moving unit and rotating with respect to the column. The straight arm moving unit includes a camshaft formed along a side surface of the moving unit rotating shaft, having an elliptical cross-section, and fixed to the straight arm moving unit, the straight arm includes a first balance unit and a second balance unit fixed to the straight arm, contacting a side surface of the camshaft, and configured to press the side surface of the camshaft by an elastic body. The first balance unit presses a side of the camshaft and the second balance unit presses the other side of the camshaft.

A device may include a base, a transmission assembly, and a response assembly. The transmission assembly may be configured to move a component of a medical device. The transmission assembly may include a cable and a wheel connected to the base. An end of the cable may be connecting to a part of the component of the medical device. The response assembly may be connected to the transmission assembly. The response assembly may be configured to generate a response in response to a break of the cable.

A translation drive system for an imaging system having an imaging gantry and a gantry base. The system includes at least one upper rail affixed to the imaging gantry and at least one lower rail affixed to the base, wherein the lower rail includes a stop. The system also includes front and lower carriages moveably attached to the lower rail wherein the upper rail is moveably attached to an upper carriage to enable movement of the imaging gantry relative to the base. Further, the system includes an extension spring attached between the lower carriage and the imaging gantry wherein when a lower carriage rear surface contacts the stop, the upper rail moves horizontally past a base rear surface into an extended position wherein the imaging gantry extends horizontally beyond the base rear surface. The system also includes a linear actuator located in the base that moves the imaging gantry.