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    • 3. 发明申请
    • SUPER MINIATURE X-RAY TUBE USING NANO MATERIAL FIELD EMITTER
    • 超小型X射线管使用纳米材料场发射
    • US20110188635A1
    • 2011-08-04
    • US12898274
    • 2010-10-05
    • Sung Oh ChoSung Hwan Heo
    • Sung Oh ChoSung Hwan Heo
    • H01J35/06
    • H01J35/06
    • A super miniature X-ray tube using the nano material field emitter includes a tip-tip-type cathode electrode having the nano material field emitter formed on one end with a planar section thereof to generate an electron beam, a gate electrode formed in a hollow cylindrical shape and surrounding an outer circumference of the cathode electrode, the gate electrode having a tapered portion formed on one end and inclined from inside to outside, the gate electrode receiving a voltage for generating the electron beam, a high voltage insulating portion formed in a hollow cylindrical shape and surrounding an outer circumference of the gate electrode, a anode electrode formed at a predetermined distance from one end of the high voltage insulating portion and receiving an acceleration voltage to accelerate an electron beam generated at the cathode electrode, and an electric field adjusting electrode formed between the high voltage insulating portion and the anode electrode to vary a pattern of an acceleration electric field, wherein the cathode electrode includes an open portion formed on one side to receive therein the electric field adjusting electrode, and an X-ray generating portion formed on the other side to generate an X-ray by a collision of an accelerated electron beam.
    • 使用纳米材料场发射体的超小型X射线管包括尖端型阴极,其具有在其一端形成有纳米材料场发射体的平面部分以产生电子束,形成在中空的栅电极 圆筒状,并且围绕阴极电极的外周,栅电极具有形成在一端上并从内到外倾斜的锥形部分,栅电极接收用于产生电子束的电压,形成在阴极电极的高压绝缘部分 围绕所述栅电极的外周,形成在与所述高压绝缘部的一端隔开预定距离并接收加速电压以加速在所述阴极产生的电子束的阳极,以及电场 形成在高压绝缘部分和阳极电极之间的调节电极,以改变图案 加速电场,其中所述阴极包括形成在一侧的开口部分,以在其中容纳电场调节电极;以及X射线产生部分,其形成在另一侧以通过加速电子的碰撞产生X射线 光束。
    • 4. 发明授权
    • Super miniature X-ray tube using NANO material field emitter
    • 超小型X射线管采用NANO材料场发射器
    • US08295440B2
    • 2012-10-23
    • US12898274
    • 2010-10-05
    • Sung Oh ChoSung Hwan Heo
    • Sung Oh ChoSung Hwan Heo
    • H01J35/06
    • H01J35/06
    • A super miniature X-ray tube using the nano material field emitter includes a tip-tip-type cathode electrode having the nano material field emitter formed on one end with a planar section thereof to generate an electron beam, a gate electrode formed in a hollow cylindrical shape and surrounding an outer circumference of the cathode electrode, the gate electrode having a tapered portion formed on one end and inclined from inside to outside, the gate electrode receiving a voltage for generating the electron beam, a high voltage insulating portion formed in a hollow cylindrical shape and surrounding an outer circumference of the gate electrode, a anode electrode formed at a predetermined distance from one end of the high voltage insulating portion and receiving an acceleration voltage to accelerate an electron beam generated at the cathode electrode, and an electric field adjusting electrode formed between the high voltage insulating portion and the anode electrode to vary a pattern of an acceleration electric field, wherein the cathode electrode includes an open portion formed on one side to receive therein the electric field adjusting electrode, and an X-ray generating portion formed on the other side to generate an X-ray by a collision of an accelerated electron beam.
    • 使用纳米材料场发射体的超小型X射线管包括尖端型阴极,其具有在其一端形成有纳米材料场发射体的平面部分以产生电子束,形成在中空的栅电极 圆筒状,并且围绕阴极电极的外周,栅电极具有形成在一端上并从内到外倾斜的锥形部分,栅电极接收用于产生电子束的电压,形成在阴极电极的高压绝缘部分 围绕所述栅电极的外周,形成在与所述高压绝缘部的一端隔开预定距离并接收加速电压以加速在所述阴极产生的电子束的阳极,以及电场 形成在高压绝缘部分和阳极电极之间的调节电极,以改变图案 加速电场,其中所述阴极包括形成在一侧的开口部分,以在其中容纳电场调节电极;以及X射线产生部分,其形成在另一侧以通过加速电子的碰撞产生X射线 光束。