Abstract: An x-ray imaging system, such as a mobile radiography unit, includes a plurality of stationary carbon nanotube based x-ray sources to be selectively energized. A circuit enables a selected subset of the radiation sources to be energized while another subset may be disabled. A light source may be attached to the support arm of the mobile radiography unit and a source of electric power is configured to energize the light source upon operator contact with the unit. The plurality of stationary x-ray sources may be used to capture a plurality of 2-D projection images of a subject to reconstruct a 3-D image thereof. The 3-D image is used to generate a 2-D projection image of the subject.

Abstract: A mobile radiography system includes a moveable arm having an x-ray source attached thereto which can be manually positioned by an operator. A sensor detects a location of a bed or other object relative to the radiography system and generates location information so that a programmable system can restrict lateral movement of the system or arm within a zone proximate the bed or other object.

Abstract: An x-ray imaging system, such as a mobile radiography unit, includes a plurality of stationary carbon nanotube based x-ray sources to be selectively energized. A circuit enables a selected subset of the radiation sources to be energized while another subset may be disabled. A light source may be attached to the support arm of the mobile radiography unit and a source of electric power is configured to energize the light source upon operator contact with the unit. The plurality of stationary x-ray sources may be used to capture a plurality of 2-D projection images of a subject to reconstruct a 3-D image thereof. The 3-D image is used to generate a 2-D projection image of the subject.

Abstract: A mobile x-ray apparatus having wheels for manual transport and an x-ray tube support attached to a base. The apparatus may be rolled by pushing and/or pulling the base, the support, or the x-ray tube. A brake is associated with at least one of the wheels to prevent rolling the apparatus when manually positioning the x-ray tube. The brake may be engaged from an actuator on the tube head, on the support, or on the base.