To provide a hollow cathode that has high heat insulation property even in an axial direction and is less likely to deteriorate over time.SOLUTION: A hollow cathode includes: a cathode tube; a heater provided on an inside or outside of the cathode tube; a thermal shield enclosing the cathode tube and the heater; and a keeper electrode enclosing the thermal shield. The thermal shield includes: an inner cylinder made of a ceramic fiber-molded body including a ceramic coating at the surface thereof; and an outer cylinder made of a metallic foil.SELECTED DRAWING: Figure 1

    【課題】軸方向においても高い断熱性を有し、経年劣化し難いホローカソードを提供する。【解決手段】カソードチューブと、カソードチューブの内側又は外側に備えられたヒータと、カソードチューブ及びヒータを囲繞する熱シールドと、熱シールドを囲繞するキーパー電極とを備え、熱シールドが、表面にセラミック被覆を有する、セラミック繊維の成形体からなる内筒と、金属箔からなる外筒とを含むホローカソードである。【選択図】図1


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    Title :

    HOLLOW CATHODE


    Additional title:

    ホローカソード


    Contributors:

    Publication date :

    2023-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / F03H PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR , Erzeugung von Vortriebskraft [Schub] nach dem Prinzip des Rückstoßes, soweit nicht anderweitig vorgesehen



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