Method and apparatus for detecting boron in x-ray fluorescence spectroscopy

    公开(公告)号:US06763086B2

    公开(公告)日:2004-07-13

    申请号:US10235355

    申请日:2002-09-05

    申请人: Yuriy Platonov

    发明人: Yuriy Platonov

    IPC分类号: G21K106

    摘要: The present invention consists of a multilayer structure having at least one triad of layers where each of the three layers is a predetermined material. One of the materials is from a group including lanthanum, lanthanum oxide, or lanthanum-based alloys. A second material is disposed between the first material and a third material. The second material is from a group including carbon, silicon, boron, boron carbide or silicon carbide. The third material is from a group including boron or boron carbide. Alternatively, a fourth material is added to further strengthen and increase the water resistance of the multilayer structure. The fourth material is selected from a group including silicon, boron, boron carbide or silicon carbide. The fourth material is disposed between the third layer of multilayer period n and the first layer of multilayer period n−1.