RAPID FRAME-RATE WIRELESS IMAGING SYSTEM

摘要

A method for defining the shape of a radiation beam that is directed toward a subject and to a free-standing imaging detector detects the position and orientation of the imaging detector relative to a radiation source, then adjusts an aperture that lies in the path of the radiation beam to shape the beam for incidence on a predetermined area of the detector according to the detected imaging detector position. The radiation source is energized to emit the shaped radiation beam and the image data about the subject is acquired from the imaging detector.

主权项

1. A portable radiographic imaging apparatus for fluoroscopy comprising:
a wheeled transport frame; a C-shaped support arm mounted on the frame and having a fixed end that is coupled to a radiation source and, configured to oppose the fixed end, a retractable end, where the retractable end is configured to seat an imaging detector when the retractable end extends outward from the frame for imaging, where the radiation source has two or more radiation sources that are individually energizable to emit a radiation beam toward the retractable end, where the imaging detector is removable from the retractable end for free-standing operation with the support arm in a retracted position; a switching actuator that is configured to align the radiation beams from each of the two or more radiation sources along the same optical path; at least one radiation source temperature sensor element that provides a signal that is indicative of temperature near an energized radiation source; and a processor to monitor the signal from the at least one radiation source sensor element and to control at least energization or alignment of the two or more radiation sources according to the monitored signal, the processor in signal communication with the imaging detector and with one or more displays for display of obtained images.