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    • 8. 发明申请
    • LARGE-AREA INDIVIDUALLY ADDRESSABLE MULTI-BEAM X-RAY SYSTEM
    • 大面积个别寻址多波束X射线系统
    • WO2003063195A1
    • 2003-07-31
    • PCT/US2003/000537
    • 2003-01-09
    • THE UNIVERSITY OF NORTH CAROLINA - CHAPEL HILLZHOU, Otto, Z.LU, JianpingQIU, Qi
    • ZHOU, Otto, Z.LU, JianpingQIU, Qi
    • H01J35/00
    • H01J35/14A61B6/032A61B6/4028B82Y10/00H01J35/065H01J35/22H01J2201/30469H01J2235/064H01J2235/068H05G1/34
    • A structure to generate x-rays has a plurality of stationary and individually electrically addressable field emissive electron sources (402) with a substrate composed of a field emissive material, such as carbon nanotubes. Electrically switching the field emissive electron sources at a predetermined frequency field emits electrons in a programmable sequence toward an incidence point on a target. The generated x-rays correspond in frequency and in position to that of the field emissive electron source. The large-area target (404) and array or matrix of emitters (402) can image objects (416) from different positions and/or angles without moving the object or the structure (400) and can produce a three dimensional image. The x-ray system is suitable for a variety of applications including industrial inspection/quality control. Analytical instruments, security systems such as airport security inspection systems and medical imaging, such as computed tomography.
    • 用于产生X射线的结构具有多个具有由诸如碳纳米管之类的场发射材料构成的衬底的固定和单独可电寻址的场发射电子源(402)。 以预定频率电场电场切换场致发射电子源以可编程序列朝向目标上的入射点发射电子。 产生的x射线的频率和位置与场发射电子源的频率和位置相对应。 大面积目标(404)和发射器(402)的阵列或矩阵可以从不同位置和/或角度对物体(416)进行成像,而不移动物体或结构(400)并且可以产生三维图像。 x射线系统适用于各种应用,包括工业检测/质量控制。 分析仪器,安全系统,如机场安全检查系统和医学成像,如计算机断层扫描。