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公开(公告)号：US20090304157A1
公开(公告)日：2009-12-10
申请号：US12478052
申请日：2009-06-04
申请人： Jens Fuerst , Stefan Popescu , Georg Wittmann
发明人： Jens Fuerst , Stefan Popescu , Georg Wittmann
CPC分类号： H01J3/021 , H01J35/065 , H01J35/26 , H01J35/305
摘要： A field emission cathode has a field emitter and an extraction grid, and the field emitter and the extraction grid can be moved relative to one another. Such a field emission cathode is highly durable and exhibits a longer lifespan. An x-ray tube has a field emission cathode composed of a field emitter and an extraction grid that can be moved relative to one another. Such an x-ray tube is highly durable and exhibits a longer lifespan.
摘要翻译： 场发射阴极具有场发射器和提取栅格，并且场发射器和提取栅格可以相对于彼此移动。 这种场致发射阴极具有高耐久性，寿命更长。 X射线管具有由场发射器和可相对于彼此移动的提取栅格组成的场致发射阴极。 这种X射线管是高度耐用的并且具有更长的寿命。
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公开(公告)号：US20110075802A1
公开(公告)日：2011-03-31
申请号：US12568703
申请日：2009-09-29
申请人： Moritz Beckmann , Jens Fuerst , Peter Schardt , Frank Sprenger , Otto Zhou
发明人： Moritz Beckmann , Jens Fuerst , Peter Schardt , Frank Sprenger , Otto Zhou
IPC分类号： G01N23/083 , H01J35/30 , H01J35/06
CPC分类号： H01J35/065 , H01J35/08 , H01J35/14 , H01J35/30 , H01J2235/062 , H01J2235/068 , H01J2235/086
摘要： An x-ray imaging system has an x-ray source having an electron field emission source that emits an x-ray beam that strikes an elongated, stationary anode in an evacuated housing. A magnetic deflection system steers the electron beam between the electron field emission source and the anode, so that the electron beam can strike the anode at different locations, thereby causing x-rays to be emitted from those different locations, by controlling the degree of magnetic deflection. A radiation detector detects the x-rays after attenuation by an examination subject, and generates signals dependent on the detected radiation that represent an image of the subject.
摘要翻译： x射线成像系统具有x射线源，该X射线源具有电子场发射源，该电子场发射源发射在抽真空壳体中撞击细长固定阳极的x射线束。 磁偏转系统将电子束引导到电子场发射源和阳极之间，使得电子束可以在不同的位置撞击阳极，从而通过控制磁场的程度使得从这些不同位置发射X射线 偏转。 放射线检测器通过检查对象检测衰减后的X射线，并且产生取决于检测到的辐射的信号，该信号表示被检体的图像。
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3.发明申请DEVICE AND METHOD FOR X-RAY EXAMINATION OF AN OBJECT FOR MATERIAL DEFECTS BY MEANS OF X-RAYS 审中-公开通过X射线对材料缺陷进行X射线检测的装置和方法公开(公告)号：US20110058651A1
公开(公告)日：2011-03-10
申请号：US12878106
申请日：2010-09-09
IPC分类号： G01B15/06
CPC分类号： H01J35/065 , G01N23/046 , G01N2223/419 , H01J35/04 , H01J2235/02 , H01J2235/062 , H01J2235/068
摘要： In a device and a method for testing an object for material defects, a multi-emitter x-ray source, at least one x-ray detector and a control system to activate emitters of the multi-emitter x-ray source are thereby used. A selective activation of individual emitters or of a portion of the emitters is conducted according to the requirements of at least one item of information related to the tested object. The Flexible and low-cost materials testing is achieved.
摘要翻译： 在用于测试材料缺陷的物体的装置和方法中，由此使用多发射体x射线源，至少一个X射线检测器和用于激活多发射体x射线源的发射体的控制系统。 单个发射器或一部分发射器的选择性激活是根据至少一项与测试对象有关的信息的要求进行的。 实现灵活且低成本的材料测试。
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公开(公告)号：US07778391B2
公开(公告)日：2010-08-17
申请号：US12478052
申请日：2009-06-04
申请人： Jens Fuerst , Stefan Popescu , Georg Wittmann
发明人： Jens Fuerst , Stefan Popescu , Georg Wittmann
IPC分类号： H01J35/00
CPC分类号： H01J3/021 , H01J35/065 , H01J35/26 , H01J35/305
摘要： A field emission cathode has a field emitter and an extraction grid, and the field emitter and the extraction grid can be moved relative to one another. Such a field emission cathode is highly durable and exhibits a longer lifespan. An x-ray tube has a field emission cathode composed of a field emitter and an extraction grid that can be moved relative to one another. Such an x-ray tube is highly durable and exhibits a longer lifespan.
摘要翻译： 场发射阴极具有场发射器和提取栅格，并且场发射器和提取栅格可以相对于彼此移动。 这种场致发射阴极具有高耐久性，寿命更长。 X射线管具有由场发射器和可相对于彼此移动的提取栅格组成的场致发射阴极。 这种X射线管是高度耐用的并且具有更长的寿命。
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