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    • 1. 发明授权
    • Method of using an areal array of tubular electron sources
    • 使用管状电子源的面阵列的方法
    • US4438557A
    • 1984-03-27
    • US343023
    • 1982-01-27
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • H01J1/13H01J29/46H01J31/12H01J37/06G01N23/00H01J37/00
    • H01J1/13B82Y10/00B82Y40/00H01J29/46H01J31/128H01J37/06H01J37/3177H01J2237/061
    • An areal array of tubular electron sources is disclosed for producing multiple directed electron beams. Sources (10) are located in a parallel array between a conductive back plate (12) at a closed end of the tubes and a conductive face plate (14) having holes therein aligned with the second open end of each of the electrode tubes (10). An electrical current source (30) is connected between the back plate (12) and face plate (14) to resistively heat each of the sources (10) to a temperature high enough for thermionic electron emission. Electron beams (34) are produced from within each of the tubular electrodes (10). Extraction means which may include a magnetic field from a coil (29) and an extraction lens (18) tends to withdraw the electrons from within the sources (10) in an intense, collimated beam (34). Beams (34) are accelerated toward a target (28) through a beam deflection unit (22) having holes (24) associated with each of the electron beams (34 ). Beam deflection plates (26) within each of the holes (24) deflect the electron beams (34) to impact selected points on a target (28).
    • 公开了一种用于产生多个定向电子束的管状电子源的面阵列。 源(10)位于管的封闭端的导电背板(12)和导电面板(14)之间的平行阵列中,导电面板(14)具有与每个电极管(10)的第二开口端对准的孔 )。 电流源(30)连接在背板(12)和面板(14)之间,以将每个源(10)电阻加热到足够高的热电子发射温度。 从每个管状电极(10)内产生电子束(34)。 可以包括来自线圈(29)和提取透镜(18)的磁场的提取装置倾向于在强烈的准直光束(34)中从源(10)内撤出电子。 光束(34)通过具有与每个电子束(34)相关联的孔(24)的光束偏转单元(22)朝向目标(28)加速。 每个孔(24)内的光束偏转板(26)使电子束(34)偏转以冲击目标(28)上的选定点。
    • 2. 发明授权
    • Areal array of tubular electron sources
    • 管状电子源的面阵列
    • US4333035A
    • 1982-06-01
    • US34984
    • 1979-05-01
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • Donald L. ParkerWilbur A. PorterRobert C. Rogers
    • H01J1/13H01J29/46H01J31/12H01J37/06H01J29/70
    • H01J1/13B82Y10/00B82Y40/00H01J29/46H01J31/128H01J37/06H01J37/3177H01J2237/31774
    • An areal array of tubular electron sources is disclosed for producing multiple directed electron beams. Sources (10) are located in a parallel array between a conductive back plate (12) at a closed end of the tubes and a conductive face plate (14) having holes therein aligned with the second open end of each of the electrode tubes (10). An electrical current source (30) is connected between the back plate (12) and face plate (14) to resistively heat each of the sources (10) to a temperature high enough for thermionic electron emission. Electron beams (34) are produced from within each of the tubular electrodes (10). Extraction means which may include a magnetic field from a coil (29) and an extraction lens (18) tends to withdraw the electrons from within the sources (10) in an intense, collimated beam (34). Beams (34) are accelerated toward a target (28) through a beam deflection unit (22) having holes (24) associated with each of the electron beams (34 ). Beam deflection plates (26) within each of the holes (24) deflect the electron beams (34) to impact selected points on a target (28).
    • 公开了一种用于产生多个定向电子束的管状电子源的面阵列。 源(10)位于管的封闭端的导电背板(12)和导电面板(14)之间的平行阵列中,导电面板(14)具有与每个电极管(10)的第二开口端对准的孔 )。 电流源(30)连接在背板(12)和面板(14)之间,以将每个源(10)电阻加热到足够高的热电子发射温度。 从每个管状电极(10)内产生电子束(34)。 可以包括来自线圈(29)和提取透镜(18)的磁场的提取装置倾向于在强烈的准直光束(34)中从源(10)内撤出电子。 光束(34)通过具有与每个电子束(34)相关联的孔(24)的光束偏转单元(22)朝向目标(28)加速。 每个孔(24)内的光束偏转板(26)使电子束(34)偏转以冲击目标(28)上的选定点。