Abstract: The present invention relates to large area field emission devices based on the incorporation of macroscopic, microscopic, and nanoscopic field enhancement features and a designed forced current sharing matrix layer to enable a stable high-current density long-life field emission device. The present invention pertains to a wide range of field emission sources and is not limited to a specific field emission technology. The invention is described as an X-ray electron source but can be applied to any application requiring a high current density electron source.

Abstract: There is disclosed a mobile radiographic imaging apparatus including a component operable to emit radiation for imaging a subject, an arm rotatably connected at a proximal end thereof to a body section of the apparatus, such that it is supported by the body section and can slew relative to the body section about an upright axis, and to a distal end of which said component is connected, and a generator assembly arranged in the body section and including a generator arranged in the casing and electrically connected to said component, the apparatus being configured such that the generator assembly rotates with the arm, about said axis, wherein the generator assembly has a centre of mass which is radially offset from said axis in a second direction that is substantially opposite to said first direction.

Abstract: An articulated arm to suspend an X-ray head from a support section in a radiographic imaging apparatus comprising two pairs of linkages separated and joined to an intermediate linkage wherein the proximal end of the first pair of linkages is connected to the support section and the distal end of the second pair of linkages is connected to the X-ray head, and further wherein the linkages in the first pair of linkages are parallel and rotatable about the connection to the support section, the linkages in the second pair of linkages are parallel and rotatable about the intermediate linkage, and whereby a rotational orientation of a mounting for the X-ray head about an axis which is parallel to the axes about which the first pair of linkages are rotatable remains constant when the first pair of linkages is rotated relative to the support section and/or the second pair of linkages is rotated relative to the intermediate linkage.

Abstract: The present invention relates to large area field emission devices based on the incorporation of macroscopic, microscopic, and nanoscopic field enhancement features and a designed forced current sharing matrix layer to enable a stable high-current density long-life field emission device. The present invention pertains to a wide range of field emission sources and is not limited to a specific field emission technology. The invention is described as an X-ray electron source but can be applied to any application requiring a high current density electron source.

Abstract: An articulated arm to suspend an X-ray head from a support section in a radiographic imaging apparatus comprising two pairs of linkages separated and joined to an intermediate linkage wherein the proximal end of the first pair of linkages is connected to the support section and the distal end of the second pair of linkages is connected to the X-ray head, and further wherein the linkages in the first pair of linkages are parallel and rotatable about the connection to the support section, the linkages in the second pair of linkages are parallel and rotatable about the intermediate linkage, and whereby a rotational orientation of a mounting for the X-ray head about an axis which is parallel to the axes about which the first pair of linkages are rotatable remains constant when the first pair of linkages is rotated relative to the support section and/or the second pair of linkages is rotated relative to the intermediate linkage.

Abstract: There is disclosed a mobile radiographic imaging apparatus including a component operable to emit radiation for imaging a subject, an arm rotatably connected at a proximal end thereof to a body section of the apparatus, such that it is supported by the body section and can slew relative to the body section about an upright axis, and to a distal end of which said component is connected, and a generator assembly arranged in the body section and including a generator arranged in the casing and electrically connected to said component, the apparatus being configured such that the generator assembly rotates with the arm, about said axis, wherein the generator assembly has a centre of mass which is radially offset from said axis in a second direction that is substantially opposite to said first direction.