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Analytical X-ray apparatus provided with a solid state position sensitive X-ray detector

机译：设置有固态位置敏感型X射线检测器的分析型X射线设备

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摘要

Each detector element 44 in a solid state position sensitive detector (PSD) could provide a low charge efficiency per X-ray quantum; moreover, a comparatively high stray capacitance 104 could exist between the take-off electrode 90 and the semiconductor material 86, 88, 92 whereto it is connected. These effects will give rise to a low signal-to-noise ratio, thus degrading the signal. According to the invention, the analog charge amplifiers 58 are constructed in integrated bipolar technology and their read-out circuitry 48 is embodied in digital technology, preferably in a BICMOS process in the form of the Current Mode Logic (CML) technique. Moreover, the digital signal processing circuitry may be accommodated on the same substrate as the charge amplifiers.

机译：固态位置灵敏探测器（PSD）中的每个探测器元素 44 可能会降低每个X射线量子的充电效率;此外，在引出电极 90 与半导体材料 86、88、92 之间可能存在较高的杂散电容 104 。连接的。这些影响将导致较低的信噪比，从而使信号降级。根据本发明，模拟电荷放大器 58 以集成双极技术构造，并且其读出电路 48 以数字技术实现，优选地，在BICMOS工艺中以数字技术实现。电流模式逻辑（CML）技术的一种形式。而且，数字信号处理电路可以被容纳在与电荷放大器相同的基板上。 展开▼

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公开/公告号US6815684B2

专利类型

公开/公告日2004-11-09

原文格式PDF

申请/专利权人 PANALYTICAL B.V.;
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申请/专利号US20010008335

发明设计人 RAYMOND WILHELMUS HERMAN JOHANNES VERBRUGGEN;
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申请日2001-11-08

分类号G01T12/40;

国家 US

入库时间 2022-08-21 23:17:58

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机译： X射线图像记录系统的操作方法，涉及控制和调节光圈单元，使得取决于x射线源和x射线检测器的位置的x射线敏感区域的部分区域被照射在该位置。

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