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    • 1. 发明申请
    • ELECTRON EMITTING CONSTRUCT CONFIGURED WITH ION BOMBARDMENT RESISTANT
    • 电子发射构造配置有离子耐火材料
    • WO2015079393A1
    • 2015-06-04
    • PCT/IB2014/066361
    • 2014-11-26
    • NANOX IMAGING PLCMOALEM, Moshe
    • KENMOTSU, HidenoriMASUYA, HitoshiIIDA, Koichi
    • H01J35/02
    • H01J35/065H01J1/3042H01J35/08H01J35/14H01J2235/062H01J2235/086
    • An electron emitting construct design of an x-ray emitter device is disclosed configured to facilitate radiation in the X-ray spectrum and further relates to preventing a cold cathode from being damaged by ion bombardment in high-voltage applications. The electron beam emitted by the emitting construct is focused and accelerated by an electrical field towards an electron anode target operable to attract electron beam to an associated focal spot, wherein the generated ions are accelerated along a trajectory perpendicular to the electric field in parallel to the surface of the electron anode target. More specifically, the present invention relates to realizing a robust cold cathode to avoid ion bombardments damages in high-voltage applications, by means of setting non-emitter zone surrounded by or set between the emitter areas. The system is further configured to provide an angled target anode or a stepped target anode to further reduce the ion bombardment damage.
    • 公开了一种x射线发射器件的电子发射结构设计,其被配置为便于X射线光谱中的辐射,并且还涉及防止冷阴极在高压应用中被离子轰击所损坏。 由发射结构发射的电子束通过电场聚焦并加速到电子阳极靶,可操作以将电子束吸引到相关联的焦点,其中所产生的离子沿垂直于电场的轨迹被平行于 电子阳极靶的表面。 更具体地,本发明涉及通过设置在发射极区域之间包围或设置的非发射极区域来实现坚固的冷阴极,以避免高压应用中的离子轰击损伤。 该系统还被配置为提供成角度的目标阳极或阶梯目标阳极,以进一步减少离子轰击损伤。