A gantry for a computed tomography device has a support structure, a pivot bearing, a rotating frame, a first braking resistor configured to electromotively brake a rotational movement of the rotating frame, and a heat conductor configured to dissipate heat from the first braking resistor. A heat conductor and a pressure duct wall are interconnected to form a heat-conductor-to-pressure-duct-wall connection that is detachable, form-fitting, planar, and thermally conductive. The heat is transferrable from the first braking resistor to the airflow via the heat conductor, the heat-conductor-to-pressure-duct-wall connection and the pressure duct wall.

Disclosed herein are a radiographic imaging apparatus, a radiation irradiation apparatus, and a method of controlling the radiographic imaging apparatus. The radiographic imaging apparatus comprises a radiation detector, a first support configured to enable the radiation detector to move in at least one direction of a up direction and a down direction, a first brake configured to stop the radiation detector at a plurality of positions and an image processor configured to synthesize a plurality of electrical signals output by the radiation detector at the plurality of positions to generate at least one radiation image.

A device for implementing a latching function of an adjustment axis of an X-ray C-arm comprises at least two magnetic bodies and two components of the adjustment axis that are movable relative to one another. A first component of the two relatively movable components of the adjustment axis is operatively connected to a magnetic body of the at least two magnetic bodies. A second component of the components of the adjustment axis movable relative to one another is a component of the X-ray C-arm system and the second magnetic of the at least two magnetic bodies is operatively connected to this component.

An example rotational joint assembly for a robotic medical system, the rotational joint assembly comprising at least one arm segment and a rotational joint provided at one end of the arm segment. The rotational joint is to allow the arm segment to rotate about a rotational axis. The rotational joint comprising a brake to lock rotation of the arm segment at the rotational joint and an actuator to selectively engage or disengage the brake. The actuator comprising a cam having two stable regions separated by two transition regions, the two stable regions comprising a first stable region corresponding to engagement of the brake and a second stable region corresponding to disengagement of the brake.

An RT-CT integrated device comprising an RT system and a CT system is disclosed. The radiation-therapy centerline of the RT system and the scanning centerline of the CT system are on a same axis, and the RT system and the CT system are located at a same end of a treatment table.

When an X-ray detector is removed from a storage part, a sensor senses this, and transmits to an up and down control part a signal indicating that the X-ray detector has been taken out of the storage part. Upon receipt of the signal, the up and down control part releases braking force by electro permanent magnets. In doing so, sticking force of the electro permanent magnet on a fixing part, and sticking force of the electro permanent magnet on a stopper plate are released. The weight of a counter weight is larger than the total value of the weights of the arm, X-ray tube, collimator, and the like, and therefore in a state where the arm is released from being fixed by the electro permanent magnets, the arm starts to move up together with the X-ray tube and the collimator.

A mobile X-ray radiographic device has an extended operable time by employing a regenerative energy system and assembly. A regenerative brake circuit acts to provide a braking force for a rear wheel set during a circumstance and an adaptive use wherein a driving force is cut off to the rear wheels, and a second battery system charges with the generated electric power for adaptive use. The regenerative brake circuit further acts to provide the braking force for a rotary anode under the circumstance in which the driving force is cut off to the rotary anode and also the second battery charges with the generated electric power.

A radiography system includes a radiation detection device, a radiation source, a moving device capable of changing, in a plurality of directions, at least any of a translational position or a rotational position of the radiation source, the moving device including a plurality of detection sensors that detect positions of the radiation source in the plurality of directions, and a processor that controls the radiation source, in which the processor executes an interlock control for applying an interlock to prohibit the irradiation with the radiation by the radiation source in a case in which at least one of the positions in the plurality of directions is not included in an allowable range for a target position, and an assist control for giving a notification of or mechanically assisting in a direction in which the radiation source is to be moved in a case in which the interlock is applied.

A nuclear medicine tomography system comprising: a detector carrier having a circular or partially circular aperture and defining a plane; a plurality of SPECT detector assemblies attached to the detector carrier and arranged around the aperture; a patient carrier movable relative to the plane; each detector assembly comprising an arm defining an extension axis and at least one detector head movable along the axis, wherein each detector assembly has a rounded distal portion; wherein each detector head is extendible along the axis, from the detector carrier toward the patient carrier; and a controller to: control, based on desired bore size and shape, extension and retraction of the detector heads to a spatial arrangement defined by the extension and retraction, control data acquisition by the detector heads, and control image reconstruction of acquired data; the controller further configured to control data acquisition and/or image reconstruction, based on the spatial arrangement.

A mobile X-ray radiographic device has an extended operable time by employing a regenerative energy system and assembly. A regenerative brake circuit acts to provide a braking force for a rear wheel set during a circumstance and an adaptive use wherein a driving force is cut off to the rear wheels, and a second battery system charges with the generated electric power for adaptive use. The regenerative brake circuit further acts to provide the braking force for a rotary anode under the circumstance in which the driving force is cut off to the rotary anode and also the second battery charges with the generated electric power.