Abstract: A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.

Abstract: In a detector arrangement for a medical diagnosis apparatus as well as a medical imaging diagnostic method, radiation quanta striking a detector are detected and evaluated with spatial resolution. The use of collimators is thereby omitted, such that radiation quanta that strike at a non-perpendicular angle to the detector are also evaluated. For spatial resolution of the origin of the radiation quantum, the spatial distribution of sensor elements of the detector that emit a signal upon incidence of a radiation quantum is evaluated. A higher efficiency of the radiation evaluation is enabled and, particularly in nuclear medical diagnostic methods, the radiation exposure of the patient can be distinctly reduced.

Abstract: A detection arrangement is for modular use for a combined transmission/emission tomography unit, for measuring transmission x-radiation and emission ?-radiation inside a detector. The detection arrangement includes at least three absorption layers of different thickness, arranged one above another in the radiation direction, for detecting absorption events in which case all of the at least three absorption layers consist of a single material. Each absorption layer is connected to a measuring chip which can transmit the measured values of location x, time t and energy E of detected absorption events to a common evaluation unit. The evaluation unit can undertake the breakdown into CT, SPECT and PET signals from the transmitted measured values of the absorption event, and the absorption layers are subdivided into a multiplicity of detection elements.

Abstract: An x-ray radiator has a vacuum housing that can rotate around an axis, a cathode that thermionically emits electrons upon irradiation thereof by a laser beam, an anode that emits x-rays upon being struck by the electrons, an insulator that is part of the vacuum housing and that separates the cathode from the anode, electrodes or terminals to apply a high voltage between the anode and the cathode to accelerate the emitted electrons toward the anode to form an electron beam, a drive arrangement for rotation of the vacuum housing around its axis, an arrangement for cooling components of the x-ray radiator, and an arrangement that directs and focuses the laser beam from a stationary source that is arranged outside of the vacuum housing onto a spatially stationary laser focal spot on the cathode.

Abstract: A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.

Abstract: A detection arrangement is for modular use for a combined transmission/emission tomography unit, for measuring transmission x-radiation and emission ?-radiation inside a detector. The detection arrangement includes at least three absorption layers of different thickness, arranged one above another in the radiation direction, for detecting absorption events in which case all of the at least three absorption layers consist of a single material. Each absorption layer is connected to a measuring chip which can transmit the measured values of location x, time t and energy E of detected absorption events to a common evaluation unit. The evaluation unit can undertake the breakdown into CT, SPECT and PET signals from the transmitted measured values of the absorption event, and the absorption layers are subdivided into a multiplicity of detection elements.

Abstract: In a detector arrangement for a medical diagnosis apparatus as well as a medical imaging diagnostic method, radiation quanta striking a detector are detected and evaluated with spatial resolution. The use of collimators is thereby omitted, such that radiation quanta that strike at a non-perpendicular angle to the detector are also evaluated. For spatial resolution of the origin of the radiation quantum, the spatial distribution of sensor elements of the detector that emit a signal upon incidence of a radiation quantum is evaluated. A higher efficiency of the radiation evaluation is enabled and, particularly in nuclear medical diagnostic methods, the radiation exposure of the patient can be distinctly reduced.