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    • 3. 发明申请
    • MICROWAVE TUBE WITH DEVICE FOR EXTRACTING IONS PRODUCED IN THE TUBE
    • 带有用于提取管中产生的离子的装置的微波管
    • US20110266951A1
    • 2011-11-03
    • US13120069
    • 2009-08-24
    • Frederic Andre
    • Frederic Andre
    • H01J25/16
    • H01J25/34H01J23/02H01J23/34H01J25/10
    • An electron tube includes: a microwave structure having an evacuated envelope including two ends, the microwave structure being at a reference potential, an electron gun including a cathode for providing a beam of electrons, along an axis, at one end of the evacuated envelope, an electron collector for gathering electrons of the beam at the other end of the evacuated envelope, and at least one high-voltage power supply for applying to the cathode a negative high-voltage potential with respect to the reference potential. The tube includes between the cathode and the microwave structure a device for extracting the positive ions including at least one electrode carried to a negative potential with respect to the reference potential so as to extract positive ions from the evacuated envelope, these positive ions being produced by the impacting of the electrons of the electron beam with molecules of residual gas in the evacuated envelope. The invention has application to microwave electron tubes, klystron TWT etc. using a cylindrical electron beam.
    • 电子管包括:微波结构,其具有包括两端的真空外壳,所述微波结构处于参考电位;电子枪,包括用于在所述抽真空的外壳的一端沿轴线提供电子束的阴极, 用于在所述抽真空的外壳的另一端收集所述光束的电子的电子收集器,以及用于向所述阴极施加相对于所述参考电位的负高电压电位的至少一个高压电源。 该管在阴极和微波结构之间包括用于提取正离子的装置,其包括相对于参考电位携带到负电位的至少一个电极,以从抽真空的外壳中提取正离子,这些正离子由 电子束的电子与抽空的外壳中剩余气体分子的碰撞。 本发明适用于使用圆柱形电子束的微波电子管,速调管TWT等。