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    • 3. 发明申请
    • FAST WARM-UP CATHODE ARRANGEMENT
    • 快速加热阴谋布置
    • WO1988004468A1
    • 1988-06-16
    • PCT/US1987002447
    • 1987-09-28
    • HUGHES AIRCRAFT COMPANY
    • HUGHES AIRCRAFT COMPANYMANOLY, Arthur, E.
    • H01J23/04
    • H01J23/04H01J1/13H01J1/135
    • A dish-shaped dispenser cathode (28) is mounted at one end of a cathode housing (10), with a heater wire coil (42) mounted behind the cathode (28). A warm-up power supply (70) electrically connected between the central region and the periphery of the cathode (28) causes heating current to flow through the cathode (28) during a short period of time at the start of cathode operation to provide rapid warm-up of the cathode (28). A sustaining power supply (76) electrically connected between the respective ends of the heater wire coil (42) causes sustaining current to flow through the heater wire coil (42) to provide sustaining heat to the cathode (28) by radiation from the heater coil (42) to maintain the cathode (28) at its desired operating temperature.
    • 碟形分配器阴极(28)安装在阴极壳体(10)的一端,加热器线圈(42)安装在阴极(28)的后面。 电连接在阴极(28)的中心区域和周边之间的预热电源(70)在阴极操作开始时的短时间内使加热电流流过阴极(28),以提供快速 预热阴极(28)。 电连接在加热器线圈(42)的各个端部之间的维持电源(76)使得维持电流流过加热器线圈(42),以通过来自加热器线圈的辐射向阴极(28)提供持续的热量 (42)以将阴极(28)保持在其期望的操作温度。
    • 7. 发明申请
    • THERMIONIC ELECTRON EMITTER AND X-RAY SOURCE INCLUDING SAME
    • THERMIONIC电子发射器和X射线源,包括它们
    • WO2009013677A1
    • 2009-01-29
    • PCT/IB2008/052868
    • 2008-07-17
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.HAUTTMANN, Stefan
    • HAUTTMANN, Stefan
    • H01J35/06H01J1/13
    • H01J35/06H01J1/13
    • A thermionic electron emitter (1) is proposed comprising an inner part (2) including a heatable flat emission surface (3) and an outer part (4) including a surrounding surface (6) substantially enclosing the emission surface and a heating arrangement for heating the emission surface to a temperature for thermionic electron emission. The outer part is mechanically connected to the inner part in a connection region (10) apart from the emission surface. Furthermore, the surrounding surface is thermally isolated, e.g. by a gap (14), from the emission surface in an isolation region apart from the connection region. By providing a surrounding surface enclosing the emission surface which may be on a similar electrical potential as the emission surface but which can have a substantially lower temperature than the emission surface without influencing the temperature distribution within the emission surface, an improved electron emission distribution and homogeneity can be obtained.
    • 提出了一种热离子电子发射器(1),其包括包括可加热平坦发射表面(3)的内部部分(2)和包括基本上包围发射表面的周围表面(6)的外部部分(4)和用于加热的加热装置 发射表面达到热离子电子发射的温度。 外部部分在离开发射表面的连接区域(10)中机械地连接到内部部分。 此外,周围的表面是热隔离的,例如。 通过间隙(14)从离开连接区域的隔离区域中的发射表面。 通过提供包围发射表面的周围表面,其可以与发射表面处于类似的电势,但是可以具有比发射表面显着更低的温度而不影响发射表面内的温度分布,改善的电子发射分布和均匀性 可以获得。