ELECTRON TUBE
    2.
    发明公开
    ELECTRON TUBE 有权
    ELEKTRONENRÖHRE

    公开(公告)号:EP1670032A1

    公开(公告)日:2006-06-14

    申请号:EP04787795.6

    申请日:2004-09-09

    IPC分类号: H01J40/04 H01J40/14 H01J9/233

    CPC分类号: H01J9/233 H01J40/16

    摘要: A photocathode (11) is formed on a predetermined portion of the internal surface of an envelope (2) of an electric tube (1). An APD (15) is provided inside the envelope (2). The APD (15) is surrounded by a cover (71) and a tubular inner wall (72). A manganese bead (17) and an antimony bead (19) serving as evaporation sources are disposed in the vicinity outside the inner wall (72). The manganese bead (17) and the antimony bead (19) are surrounded by a tubular outer wall (74). The manganese bead (17) and the antimony bead (19) generate metal vapor to thereby form the photocathode (11). In forming the photocathode (11), the cover (71), inner wall (72), outer wall (74) prevent the metal vapor from being deposited on the APD (15) or an unintended portion inside the electron tube (1).

    摘要翻译: 光电阴极(11)形成在电管(1)的外壳(2)的内表面的预定部分上。 APD(15)设置在信封(2)的内部。 APD(15)由盖(71)和管状内壁(72)包围。 用作蒸发源的锰珠(17)和锑珠(19)设置在内壁(72)的外侧附近。 锰珠(17)和锑珠(19)被管状外壁(74)包围。 锰珠(17)和锑珠(19)产生金属蒸气,从而形成光电阴极(11)。 在形成光电阴极(11)时,盖(71),内壁(72),外壁(74)防止金属蒸气沉积在电子管(1)内的APD(15)或非预期部分上。