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1. 发明申请

WO2004097886A2 X-RAY TUBES 审中-公开
标题翻译： X射线管
公开(公告)号：WO2004097886A2
公开(公告)日：2004-11-11
申请号：PCT/GB2004/001731
申请日：2004-04-23
申请人： CRX LIMITED , MORTON, Edward, James , LUGGAR, Russell, David , DE ANTONIS, Paul
发明人： MORTON, Edward, James , LUGGAR, Russell, David , DE ANTONIS, Paul
IPC分类号： H01J29/00
CPC分类号： H01J35/04 , H01J35/08 , H01J2235/086 , H01J2235/087 , H01J2235/12 , H01J2235/168
摘要： An X-ray tube comprises an electron source in the form of a cathodE (12), and an anode (14) within a housing (10). The anode (14) is a thin film anode, so that most of the electrons which do not interact with it to produce X-rays pass directly through it. X-rays can be collected through a first window (16) directly behind the anode (14), or a second window (18) to one side of the anode. A retardation electrode 20 is located behind the anode 4 and is held at a potential which is negative with respect to the anode 14, and slightly positive with respect to the cathode (12). This retardation electrode (20) produces an electric field which slows down electrons passing through the anode (14) so that, when they interact with it, they are at relatively low energies. This reduces the heat load on the tube.
摘要翻译： X射线管包括阴极E（12）形式的电子源和在壳体（10）内的阳极（14）。阳极（14）是薄膜阳极，使得与其不相互作用以产生X射线的大多数电子直接通过它。可以通过阳极（14）正后方的第一窗口（16）或阳极一侧的第二窗口（18）来收集X射线。延迟电极20位于阳极4的后面并且被保持在相对于阳极14为负的电位，并且相对于阴极（12）稍微为正。该延迟电极（20）产生电场，其减慢通过阳极（14）的电子，使得当它们与其相互作用时，它们处于相对低的能量。这减少了管上的热负荷。

2. 发明申请

WO2004097386A1 CONTROL MEANS FOR HEAT LOAD IN X-RAY SCANNING APPARATUS 审中-公开
标题翻译： X射线扫描装置中的负载控制装置
公开(公告)号：WO2004097386A1
公开(公告)日：2004-11-11
申请号：PCT/GB2004/001729
申请日：2004-04-23
申请人： CRX LIMITED , MORTON, Edward, James , LUGGAR, Russell, David , DE ANTONIS, Paul
发明人： MORTON, Edward, James , LUGGAR, Russell, David , DE ANTONIS, Paul
IPC分类号： G01N23/04
CPC分类号： A61B6/032 , A61B6/4007 , A61B6/4014 , A61B6/4021 , G01N23/046 , G01N2223/419 , G01V5/0016 , H01J35/04 , H01J35/045 , H01J35/24
摘要： An X-ray scanning apparatus comprises a number of multi-focus X-ray tubes (25) spaced around an axis X and arranged to emit X-rays through an object on the axis which are detected by sensors (52). Each tube (25) can emit X-rays from a plurality of source positions. In each scanning cycle, in which each of the source positions in each of the tubes is used once, the ordering of the positions used is arranged so as to minimize the thermal load on the tubes (25). This is achieved by ensuring that each source position is non-adjacent to the previously active one and the next active one.
摘要翻译： X射线扫描装置包括围绕轴线X间隔开的多个多焦点X射线管（25），并被布置成通过由传感器（52）检测到的轴上的物体发射X射线。每个管（25）可以从多个源位置发射X射线。在每个扫描周期中，其中每个管中的每个源位置被使用一次，所使用的位置的排列被布置成使得管（25）上的热负载最小化。这是通过确保每个源位置与先前活动的位置和下一个活动的位置不相邻来实现的。

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