直热式阴极构件及其制造方法

    公开(公告)号:CN1084924C

    公开(公告)日:2002-05-15

    申请号:CN95121819.0

    申请日:1995-12-28

    CPC classification number: H01J1/28 H01J2201/281

    Abstract: 一种直热式阴极构件,包括:多孔粒料,渗有阴极材料;第一金属构件,固定在多孔粒料的下表面;第二金属构件,与第一金属构件焊接;一个灯丝,夹在第一与第二金属构件间。该阴极构件的制造工序:制取多空腔的多孔粒料;将第一金属构件焊接到多孔粒料的下表面;令电子发射材料渗透粒料的空腔中;将第二金属构件与第一金属构件焊接起来,灯丝配置在第一和第二金属构件间。由于热电子没有通过粒料表面发射出,因而延长了阴极构件的使用寿命。

    直热式阴极构件及其制造方法

    公开(公告)号:CN1133483A

    公开(公告)日:1996-10-16

    申请号:CN95121819.0

    申请日:1995-12-28

    CPC classification number: H01J1/28 H01J2201/281

    Abstract: 一种直热式阴极构件,包括:多孔粒料,渗有阴极材料;第一金属构件,固定在多孔粒料的下表面;第二金属构件,与第一金属构件焊接;一个灯丝,夹在第一与第二金属构件间。该阴极构件的制造工序;制取多空腔的多孔粒料;将第一金属构件焊接到多孔粒料的下表面;令电子发射材料渗透粒料的空腔中;将第二金属构件与第一金属构件焊接起来,灯丝配置在第一和第二金属构件间,由于热电子没有通过粒料表面发射出,因而延长了阴极构件的使用寿命。

    Filament assembly having reduced electron beam time constant
    4.
    发明授权
    Filament assembly having reduced electron beam time constant 有权
    长丝组件具有减小的电子束时间常数

    公开(公告)号:US07539286B1

    公开(公告)日:2009-05-26

    申请号:US11942656

    申请日:2007-11-19

    Abstract: A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

    Abstract translation: 公开了一种用于x射线发射装置或其它含灯丝装置的灯丝组件。 在一个实施例中,公开了一种X射线管,其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括在管操作期间发射电子束的灯丝组件。 灯丝组件包括散热器和多个灯丝段。 灯丝段被配置为同时发射用于冲击阳极的靶表面的电子束,并且串联电连接。 每个细丝段包括热连接到散热器的第一和第二端部,以及可以配置有用于优先电子发射的修改功函数的中心部分。

    FILAMENT ASSEMBLY HAVING REDUCED ELECTRON BEAM TIME CONSTANT
    5.
    发明申请
    FILAMENT ASSEMBLY HAVING REDUCED ELECTRON BEAM TIME CONSTANT 有权
    具有减少电子束时间的薄膜组件

    公开(公告)号:US20090129550A1

    公开(公告)日:2009-05-21

    申请号:US11942656

    申请日:2007-11-19

    Abstract: A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

    Abstract translation: 公开了一种用于x射线发射装置或其它含灯丝装置的灯丝组件。 在一个实施例中,公开了一种X射线管,其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括在管操作期间发射电子束的灯丝组件。 灯丝组件包括散热器和多个灯丝段。 灯丝段被配置为同时发射用于冲击阳极的靶表面的电子束,并且串联电连接。 每个细丝段包括热连接到散热器的第一和第二端部,以及可以配置有用于优先电子发射的修改功函数的中心部分。

    Directly heated cathode structure
    6.
    发明授权
    Directly heated cathode structure 失效
    直接加热阴极结构

    公开(公告)号:US5701052A

    公开(公告)日:1997-12-23

    申请号:US579519

    申请日:1995-12-27

    CPC classification number: H01J1/28 H01J2201/281

    Abstract: A directly heated cathode structure includes a porous pellet impregnated with a cathode material, a first metal member fixed to a surface of the porous pellet, a second metal member welded to the first metal member, and a filament interposed between the first and second metal members. A method for manufacturing a directly heated cathode structure includes manufacturing a porous pellet having a multiplicity of cavities, welding a first metal member to a surface of the porous pellet with a brazing layer, impregnating the cavities of the pellet with an electron radiating material, and welding a second metal member to the first metal member with a filament disposed between the first and second metal members. The useful life of the cathode structure is prolonged since thermions are not emitted through the surface of the pellet covered by the metal member.

    Abstract translation: 直接加热的阴极结构包括浸渍有阴极材料的多孔颗粒,固定到多孔颗粒的表面的第一金属构件,焊接到第一金属构件的第二金属构件和插入在第一和第二金属构件之间的细丝 。 制造直接加热的阴极结构的方法包括制造具有多个空腔的多孔颗粒,用钎焊层将第一金属构件焊接到多孔颗粒的表面,用电子辐射材料浸渍颗粒的空腔,以及 用设置在第一和第二金属构件之间的细丝将第二金属构件焊接到第一金属构件。 阴极结构的使用寿命延长,因为不会通过由金属构件覆盖的颗粒的表面发射热量。

    CATHODE-HEATING DEVICE FOR ELECTRON-RAY TUBE
    7.
    发明申请
    CATHODE-HEATING DEVICE FOR ELECTRON-RAY TUBE 审中-公开
    用于电子管的阴极加热装置

    公开(公告)号:WO1991003831A1

    公开(公告)日:1991-03-21

    申请号:PCT/SU1989000229

    申请日:1989-08-29

    CPC classification number: H01J1/22 H01J1/16 H01J2201/281

    Abstract: A cathode-heating device comprises an emitter (1) secured on central sections (3) of at least two filament-like heating elements (4), whose peripheral sections (5) are oriented at the same sharp angle ( alpha ) to the longitudinal geometrical axis (2) of the emitter (1) and are secured by their ends to current supply buses (6). The ends of the peripheral sections (5) are located at the vertices of a polygon with two mutually perpendicular axes (8, 9) of symmetry, one of which passes through the axes of the current supply buses (6) and whose intersection point lies on the axis (2) of the emitter (1).

    Abstract translation: 阴极加热装置包括固定在至少两个丝状加热元件(4)的中心部分(3)上的发射器(1),其周边部分(5)以与纵向方向相同的锐角(α) 发射器(1)的几何轴(2),并通过它们的端部固定到电流供应总线(6)。 周边部分(5)的端部位于具有两个相互垂直的对称轴线(8,9)的多边形的顶点,其中一个轴线通过电流供应总线(6)的轴线,并且其交叉点位于 在发射器(1)的轴线(2)上。

    Directly heated cathode structure and manufacturing method thereof
    9.
    发明公开
    Directly heated cathode structure and manufacturing method thereof 失效
    Direkt gehitzte Kathodenstruktur und Verfahren zur Herstellung

    公开(公告)号:EP0720198A1

    公开(公告)日:1996-07-03

    申请号:EP95309471.1

    申请日:1995-12-27

    CPC classification number: H01J1/28 H01J2201/281

    Abstract: A directly heated cathode structure includes a porous pellet (500) in which cathode material is impregnated, a first metal member (510) being fixed to the lower surface of the porous pellet (500), a second metal member (520) being welded with the first metal member (510), and a filament (600) being interposed between the first and second metal members. A method for manufacturing a directly heated cathode structure includes the steps of manufacturing a porous pellet (500) having a multiplicity of cavities, welding a first metal member (510) to the lower surface of the porous pellet by a brazing layer (700), impregnating electron radiating material (600) into the cavities of the pellet, and welding a second metal member (520) to the first metal member (510) so that a filament (600) is disposed between the first and second metal members. Life of the cathode structure is prolonged by this because thermions are not emitted through the lower surface of the pellet.

    Abstract translation: 直接加热的阴极结构包括其中浸渍有阴极材料的多孔颗粒(500),固定到多孔颗粒(500)的下表面的第一金属构件(510),第二金属构件(520) 第一金属构件(510)和插入在第一和第二金属构件之间的细丝(600)。 制造直接加热的阴极结构体的方法包括以下步骤:制造具有多个空腔的多孔颗粒(500),通过钎焊层(700)将第一金属构件(510)焊接到多孔颗粒的下表面; 将电子辐射材料(600)浸渍到颗粒的空腔中,并将第二金属构件(520)焊接到第一金属构件(510),使得细丝(600)设置在第一和第二金属构件之间。 阴极结构的寿命由此延长,因为热不会通过颗粒的下表面发射。

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