System and method for generating microfocused laser-based x-rays for mammography
    3.
    发明授权
    System and method for generating microfocused laser-based x-rays for mammography 有权
    用于生成用于乳房X线照相术的基于微焦点的基于激光的X射线的系统和方法

    公开(公告)号:US06980625B2

    公开(公告)日:2005-12-27

    申请号:US10227704

    申请日:2002-08-26

    CPC分类号: H05G2/001 A61B6/502

    摘要: The present invention concerns x-ray sources for mammography. A microfocused x-ray source of small size (30 μm and smaller) with x-ray spectrum optimized for enhanced mammography is obtained with a method and system according to the invention. The proposed x-ray source is based on the use of plasmas created by the energy distribution of suprathermal electrons that are produced during the interaction of the laser beam with a solid target. These hot electrons penetrate the surface layer of cold plasma and interact with the solid core of the target. The method and system according to the present invention allows optimizing the x-ray source size, its spectral distribution, and the conversion efficiency in the 17.3-28.5 keV range (adapted to the breast thickness).

    摘要翻译: 本发明涉及用于乳房X线摄影的X射线源。 使用根据本发明的方法和系统获得用于增强乳房X线照相术优化的x射线光谱的小尺寸(30μm和更小)的微焦点x射线源。 所提出的x射线源基于使用由激光束与固体靶相互作用期间产生的超热电子的能量分布产生的等离子体。 这些热电子穿透冷等离子体的表面层并与靶的实心核相互作用。 根据本发明的方法和系统允许在17.3-28.5keV范围(适应于乳房厚度)中优化x射线源尺寸,其光谱分布和转换效率。