Imaging by point absorption of radiation
    3.
    发明授权
    Imaging by point absorption of radiation 失效
    通过点吸收辐射成像

    公开(公告)号:US4085324A

    公开(公告)日:1978-04-18

    申请号:US756634

    申请日:1977-01-04

    IPC分类号: G03B41/00 G03B42/02

    CPC分类号: G03B42/028 G03B41/00

    摘要: Radiation is partially blocked by a pointlike absorber to establish a patterned flux whose intensity distribution is a function of source geometry. The flux strikes a receptor having a proper contrast to spatial frequency characteristic to map an image that is topologically equivalent to the source at an acceptable level of contrast and acuity.Apparatus is disclosed that is capable of practicing the invention in the X-ray and light regions of the electromagnetic spectrum.

    摘要翻译: 辐射被点状吸收体部分阻挡,以建立其强度分布是源几何的函数的图案化通量。 磁通量与具有与空间频率特性的适当对比度的受体撞击,以在可接受的对比度和敏锐度水平上映射与源的拓扑学等效的图像。