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1. 发明授权

US06463124B1 Miniature energy transducer for emitting x-ray radiation including schottky cathode 有权
标题翻译：用于发射包括肖特基阴极的X射线辐射的微型能量换能器
公开(公告)号：US06463124B1
公开(公告)日：2002-10-08
申请号：US09596530
申请日：2000-06-19
申请人： Effraim Weisman , Nathan Sela , Dan Hashimshony , Uriel Halavee , Guy Shinar , Gilad Marcus
发明人： Effraim Weisman , Nathan Sela , Dan Hashimshony , Uriel Halavee , Guy Shinar , Gilad Marcus
IPC分类号： H01J3506
CPC分类号： A61N5/1001 , A61N5/1002 , H01J35/065 , H01J35/32 , H01J2201/342 , H01J2235/06 , H01J2235/164
摘要： An apparatus provides in-situ radiation treating utilizing a miniature energy transducer to produce x-rays, wherein the energy transducer includes a Schottky cathode tip. More specifically, the energy transducer includes a transducer body, an anode provided at a first end of the transducer body, and a cathode provided at a second end of the transducer body opposite the anode. The energy transducer is coupled to an energy source by a flexible insertion device. The energy source provides electrical and/or light signals to the energy transducer via the flexible insertion device. Light transmitted from the energy source to the energy transducer by the flexible insertion device is focused on a Schottky cathode tip of the cathode by the optical fiber provided in the hollow core of the anode. The application of the light signal to the cathode tip results in heating of the tip and along with the electric field generated by the acceleration voltage it leads to electron Schottky emission and electron acceleration towards the anode. In another preferred embodiment, an electrical current, transmitted from the energy source to the energy transducer by the flexible insertion device, is applied to the Schottky cathode tip of the cathode, causing thermo-emission. The electrons generated due to this process are accelerated towards the anode across a voltage difference between the anode and the cathode.
摘要翻译：一种装置利用微型能量换能器提供原位辐射处理以产生X射线，其中能量换能器包括肖特基阴极尖端。更具体地，能量换能器包括换能器主体，设置在换能器主体的第一端的阳极和设置在换能器本体的与阳极相对的第二端的阴极。能量传感器通过柔性插入装置耦合到能量源。能量源通过柔性插入装置向能量换能器提供电和/或光信号。通过柔性插入装置从能量源传递到能量换能器的光通过设置在阳极中空芯中的光纤聚焦在阴极的肖特基阴极尖端上。将光信号施加到阴极尖端导致尖端的加热以及由加速电压产生的电场，从而导致电子肖特基发射和朝向阳极的电子加速。在另一个优选实施例中，通过柔性插入装置从能量源传递到能量换能器的电流被施加到阴极的肖特基阴极尖端，引起热发射。由于该过程产生的电子在阳极和阴极之间的电压差上被朝向阳极加速。

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