A medical engineering apparatus includes a functional unit that may move relative to an object. The medical engineering apparatus includes a first electrode unit and a second electrode unit arranged separately from the first electrode unit that together form a capacitive sensor unit for determining a distance between the object and the second electrode unit. The first electrode unit is electrically connectable to the object, and the second electrode unit is connected to the functional unit. An electrical alternating signal may be applied to the first electrode unit or the second electrode unit. The medical engineering apparatus includes a determining unit for determining the distance based on a current measured at the first electrode unit or the second electrode unit. The medical engineering apparatus includes an output unit for outputting an output value based on the measured current.

Disclosed is a coded-aperture-based dual particle image fusion apparatus that simultaneously fuses a real-time site image of a radiation source and a reaction image of gamma rays and neutrons to perform nuclide discrimination through the position of radiation, dose per second, and spectrum information, to provide numerical information of dose, and to visualize position information of gamma rays and neutrons through GPS information, whereby it is possible to secure worker safety, and that has a compact size so as to be easily carried, whereby it is possible to create a radiation distribution map based on location movement.

The disclosure relates to a system and method for determining a working bed location. The method may include: acquire a first reference bed location relating to a bed for supporting an object; acquire a first set of reference emission data relating to photons of a first energy level originated from radiation of scintillator crystals of a plurality of detectors, the first set of reference emission data corresponding to the first reference bed location; acquire, at a working bed location relating to the bed, a set of positioning emission data relating to photons of the first energy level, wherein the set of positioning emission data relating to photons of the first energy level originated from radiation of scintillator crystals of the plurality of detectors; and determine the working bed location based on the first reference bed location, the first set of reference emission data, and the set of positioning emission data.

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.

A system suitable for determining a location of an emitter emitting a radiation signal from an unknown location has a vehicle with a location position determining apparatus to receive a location datum, so the location of the vehicle can be determined when the radiation signal is received. A sensor connected to a receiver is positioned on the vehicle to detect and receive the radiation signal at a plurality of locations. A processor having a program executing therein determines the power level of the radiation signal at each measurement location and determines the location of the emitter from the change in power level of the radiation signal between measurement locations.

A method for performing an X-ray diffraction analysis of a crystal sample using a multi-dimensional detector that integrates an X-ray diffraction signal while the position of the sample relative to an X-ray source is changed along a scan direction. The resulting image is compressed along the scan direction, but may be collected very quickly. The capture of both on-axis and off-axis reflections in a single image provides a common spatial frame of reference for comparing the reflections. This may be used in the construction of a reciprocal space map, and is useful for analyzing a sample with multiple crystal layers, such as a crystal substrate with a crystalline film deposited thereupon.

An apparatus comprising a radiation source, coincident positron emission detectors configured to detect coincident positron annihilation emissions originating within a coordinate system, and a controller coupled to the radiation source and the coincident positron emission detectors, the controller configured to identify coincident positron annihilation emission paths intersecting one or more volumes in the coordinate system and align the radiation source along an identified coincident positron annihilation emission path.

Provided is a living cell microbeam directional and quantitative irradiation imaging apparatus. The problem that qualitative analysis of the mechanism of action of biological cells irradiated cannot accurately study the mechanism of action of different irradiation doses on biological cells as the cell irradiation technology can be only used to perform qualitative irradiation on living biological cells is solved. The apparatus includes a vertical microbeam terminal, a living cell directional irradiation module, a wide-field microscopic module, a mode switching module, and a single-proton counting and radiation synchronous control module. The vertical microbeam terminal, the living cell directional irradiation module, the mode switching module and the wide-field microscopic module are sequentially matched, the mode switching module is connected to the single-proton counting and radiation synchronous control module, and the vertical microbeam terminal is matched with the single-proton counting and radiation synchronous control module.

Systems, methods, and computer software are disclosed for determining a shape of a radiation field generated by a radiation delivery system through the use of a scintillator and a camera that is configured to acquire images of light emitted by the scintillator during delivery of a radiation beam. A support structure may be mounted to the radiation delivery system and the scintillator and camera may be fixed to the support structure such that the scintillator is not perpendicular to the axis of the radiation beam. An edge detection algorithm may be applied to radiation patterns present in the camera images in order to determine the location of an edge of a leaf of a multi-leaf collimator.

A radiation camera system and method incorporating a radiation sensor/detector (RSD) and automated operation of coded camera aperture masks (CAMs) is disclosed that may be advantageously applied to real-time tracking of radiological hot spots in crisis, maintenance, decontamination, and/or maintenance scenarios. The system/method integrates automated camera RSD positioning, CAM identification, and CAM rotation. The system incorporates computerized controls in conjunction with remotely controlled horizontal/vertical tilting motors to direct the RSD aperture position and view of the RSD. CAMs may be installed in the camera manually and are automatically identified by the system via the use of encoding magnets that are detected using a Hall-effect sensor. The CAMs may be rotated after installation in the camera by computer control to predefined positions such as mask and anti-mask to affect the desired degree of radiation screening to be applied to the RSD.