Abstract: An X-ray imaging system includes an X-ray generator including a plurality of X-ray generation units, where the plurality of X-ray generation units is two-dimensionally arranged, and operates independently of each other; and an X-ray detector spaced apart from the X-ray generator, where the X-ray detector includes a plurality of X-ray detection units corresponding to the plurality of X-ray generation units, where a space is defined between the X-ray generator and the X-ray detector.

Abstract: A flat panel display is provided. The flat panel display includes a cathode panel in which a plurality of electron emission areas are provided on a support, and an anode panel in which a plurality of phosphor areas and an anode electrode are provided on a substrate. The cathode panel and the anode panel are joined together at their periphery by a joining member. The anode electrode includes an anode electrode central section covering the phosphor areas, and an anode electrode peripheral section surrounding the anode electrode central section and extending from the anode electrode central section and being provided in contact with the substrate. The average thickness of the anode electrode peripheral section is smaller than the average thickness of the anode electrode central section.

Abstract: Provided are electron-emitting devices improved in durability during concentration of an electric field and thus rarely suffering chain discharge breakdown. An electron-emitting device has an electroconductive film, a layer placed on the electroconductive film and containing aluminum oxide as a main component, a pore placed in the layer containing aluminum oxide as a main component, and an electron emitter placed in the pore and containing a material of the electroconductive film, and the electron emitter is porous and is electrically connected to the electroconductive film.

Abstract: The object of this invention is to provide a plasma display panel in which an aging process essential to the manufacturing process generates minimal phosphor deterioration, enabling a relatively high luminous efficiency and high quality color production to be produced.

Abstract: An atomic clock system employs one of a family of ion trap configurations confining an ion in a potential well, such that a vibrational frequency confined ion may be measured accurately. The ion traps disclassed for use in such atomic clock systems include configurations of ring-shaped conductive members, or sheets of conductive material having circular holes therein. The trap apparatus further has a means to apply an RF field such that the resulting electric field being generated in a space defined by the conductive members has a characteristic of a substantially quadrupole field whereby a charged particle, being injected into the space, is confined in said field, maintaining a dynamic equilibrium condition.