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    • 3. 发明授权
    • X-ray image intensifier having a support ring that prevents implosion
    • 具有防止内爆的支撑环的X射线图像增强器
    • US4870473A
    • 1989-09-26
    • US325039
    • 1989-03-16
    • Fumio Sugimori
    • Fumio Sugimori
    • H01J29/87H01J31/50
    • H01J29/87H01J31/50H01J2231/50036H01J2231/50063
    • This invention relates to an X-ray image intensifier for intensifying and reproducing an image of an object, by use of X-ray and the like. An evacuated envelope of the image intensifier is constituted by a cylindrical glass body having an open end and a closed end, an X-ray input window covering the open end of the body, and a support ring for providing a hermetical seal between the body and the window at the open end. The window is constituted by a domed portion which expands outwardly from the evacuated envelope, a flange portion which is formed around the peripheral edge of the window and has a flat bonding surface which extends perpendicular to the axis of the evacuated envelope, with a curved portion forming a transitional area between the domed and flange portions. The support ring is bonded to the flange portion, at the flat bonding surface, and has a smaller inner diameter than the outer diameter of the curved portion. Further, the inner end of the ring member is located inward of the inner end of the flange portion.
    • 本发明涉及通过使用X射线等来增强和再现物体的图像的X射线图像增强器。 图像增强器的抽真空的外壳由具有开口端和封闭端的圆柱形玻璃体,覆盖主体的开口端的X射线输入窗和用于在主体和主体之间提供气密密封的支撑环构成, 窗户在开放的一端。 窗口由从真空外壳向外膨胀的圆顶部分构成,凸缘部分形成在窗口的周缘周围,并且具有垂直于抽真空的外壳的轴线延伸的平坦的接合表面,弯曲部分 在圆顶和凸缘部分之间形成过渡区域。 支撑环在平坦的接合表面处接合到凸缘部分,并且具有比弯曲部分的外径更小的内径。 此外,环构件的内端位于凸缘部的内端的内侧。