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公开(公告)号：US07639783B1
公开(公告)日：2009-12-29
申请号：US12131341
申请日：2008-06-02
CPC分类号： G01N23/207 , G01T1/185
摘要： An X-ray detector is formed with a geometry in the form of a spherical polygon, including an entrance window, a grid and an anode. The spherical polygonal entrance window and the grid form a spherical polygonal drift region between them. The electric field in this region is radial and eliminates parallax broadening. A spherical polygonal amplification region between a resistive anode on an insulating support and the grid allows very high gas amplification and good protection against spark discharges. A readout electrode on the back side of the anode insulator detects induced charges and protects the readout electronics against sparks.
摘要翻译： 形成具有球形多边形形状的X射线检测器，其包括入口窗，栅格和阳极。 球形多边形入口窗和网格在它们之间形成一个球形多边形漂移区域。 该区域的电场是径向的，消除视差变宽。 绝缘支架上的电阻式阳极与电网之间的球形多边形放大区允许非常高的气体放大和良好的防止火花放电的保护。 阳极绝缘体背侧的读出电极检测感应电荷，并保护读出电子元件免受火花。
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公开(公告)号：US08153988B2
公开(公告)日：2012-04-10
申请号：US12844960
申请日：2010-07-28
申请人： Yacouba Diawara , Menyhert Kocsis
发明人： Yacouba Diawara , Menyhert Kocsis
IPC分类号： G01T3/06
摘要： A neutron detector employs a porous material layer including pores between nanoparticles. The composition of the nanoparticles is selected to cause emission of electrons upon detection of a neutron. The nanoparticles have a maximum dimension that is in the range from 0.1 micron to 1 millimeter, and can be sintered with pores thereamongst. A passing radiation generates electrons at one or more nanoparticles, some of which are scattered into a pore and directed toward a direction opposite to the applied electrical field. These electrons travel through the pore and collide with additional nanoparticles, which generate more electrons. The electrons are amplified in a cascade reaction that occurs along the pores behind the initial detection point. An electron amplification device may be placed behind the porous material layer to further amplify the electrons exiting the porous material layer.
摘要翻译： 中子检测器采用包括纳米颗粒之间的孔的多孔材料层。 选择纳米颗粒的组成以在检测到中子时引起电子的发射。 纳米颗粒的最大尺寸在0.1微米至1毫米的范围内，并且可以在其上与孔烧结。 通过的辐射在一个或多个纳米颗粒处产生电子，其中一些纳米颗粒被散射到孔中并被引向与所施加的电场相反的方向。 这些电子穿过孔并与另外的纳米颗粒碰撞，这产生更多的电子。 电子在沿着初始检测点后面的孔发生的级联反应中扩增。 电子放大装置可以放置在多孔材料层后面，以进一步放大离开多孔材料层的电子。
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