Use of light-metal panes as X-ray transmissive windows
AssigneeSiemens Aktiengesellschaft
InventorStefan Gunther
Life of this patent
Estimating the term…
Abstract
A light-metal pane usable as an X-ray transmissive or penetrable window which is constituted of a material readily permitting the passage of X-rays therethrough. The window pane is obtained through the use of a two-layer material, of which one layer is formed of light-weight metal, and the other layer comprises a heavy-weight metal. In the ray transmitting portion of the window, the heavy-weight metal layer is removed, and at the edge the light-weight metal, so that there remains the two-layer material in the transitional region towards the edge of the window.
Claims8
In ray-penetrating windows for high-vacuum tubes, the use of X-ray penetrable window panes weldable into heavy-metal frames, said panes being each constituted of a layered plate formed of two integrally connected layers formed by rolling under high pressure, one said layer being a light-weight metal excluding beryllium having a density of less than 4.5 g/cm.sup.3, and the other layer being a heavy-weight metal having a density of more than 4.5 g/cm.sup.3, said heavy-weight metal being removed from the center of said light-weight metal layer towards the edge region thereof and said light-weight metal layer being removed from the edge of said heavy-weight metal layer so as to form an overlapping two-layered portion, the heavy-weight metal edge providing a vacuum tight connection to said frames, said pane being insertable into said frames and said heavy-weight metal edge portion being weldable thereto.
In ray-penetrating windows for high-vacuum tubes, the use of X-ray penetrable window panes weldable into heavy-metal frames, said panes being each constituted of a layered plate formed of two integrally connected layers, one said layer being a light-weight metal having a density of less than 4.5 g/cm.sup.3, and the other said layer being a heavy-weight metal having a density of more than 4.5 g/cm.sup.3, said heavy-weight metal being removed from the center of said light-weight metal layer towards the edge region thereof and said light-weight metal layer being removed from the edge so as to form an overlapping two-layered portion, the heavy-weight metal edge providing a vacuum tight connection to said frames, said pane being insertable into said frames and said heavy-weight metal edge portion being weldable thereto, said light-weight metal layer being aluminum and said heavy-weight metal layer being iron.
In ray-penetrating windows for high-vacuum tubes, the use of X-ray penetrable window panes weldable into heavy-metal frames, said panes being each constituted of a layered plate formed of two integrally connected layers, one said layer being a light-weight metal having a density of less than 4.5 g/cm.sup.3, and the other said layer being a heavy-weight metal having a density of more than 4.5 g/cm.sup.3, said heavy-weight metal being removed from the center of said light-weight metal layer towards the edge region thereof and said light-weight metal layer being removed from the edge so as to form an overlapping two-layered portion, the heavy-weight metal edge providing a vacuum tight connection to said frames, said pane being insertable into said frames and said heavy-weight metal edge portion being weldable thereto, said light-weight metal layer being titanium and said heavy-weight metal layer being copper.
Dependencies are inferred from the claim text.