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    • 30. 发明授权
    • Inverted magnetron ion source
    • 倒置磁控管离子源
    • US4542321A
    • 1985-09-17
    • US397527
    • 1982-07-12
    • Bawa SinghDavid Boyarsky
    • Bawa SinghDavid Boyarsky
    • H01J27/08H01J27/14H01J37/08H01J7/24
    • H01J37/08H01J27/08H01J27/14
    • The present invention provides, in a preferred embodiment, a cylindrical stainless steel cathode with end pieces thereon to form a cathode chamber within. In addition, in a preferred embodiment, there is a stainless steel rod which passes axially through the cathode chamber and which is electrically insulated therefrom at the end pieces. The stainless steel cathode has first and second apertures formed therein with the first to be connected to a source of ionizable gas and the second to act as the opening through which there passes a stream of ions to an ion beam target. A magnetic flux source is coupled to the cathode chamber to pass magnetic flux therethrough and a voltage source is connected between the anode and the cathode to provide an electrostatic field therebetween whereby when ionizable gas is fed into the cathode chamber, it is ionized and a stream of ions emanates from the second aperture. In a preferred embodiment there is further provided an electrostatic ion focusing means to focus the ion stream emanating from the second aperture.
    • 在优选实施例中,本发明提供一种圆柱形不锈钢阴极,其上具有端部件以在其内形成阴极室。 此外,在一个优选实施例中,存在一个不锈钢棒,其轴向通过阴极室并且在端部件处与其电绝缘。 不锈钢阴极具有形成在其中的第一和第二孔,其中第一和第二孔形成有第一和第二孔,第一和第二孔与第一可连接的可电离气体源连接,而第二孔用作开口,通过该开口将离子流传递到离子束靶。 磁通源耦合到阴极室以通过其中的磁通,并且电压源连接在阳极和阴极之间以在其间提供静电场,由此当将可电离气体馈送到阴极室中时,将其电离并流 的离子从第二孔发出。 在优选实施例中,还提供了一种用于聚焦从第二孔发出的离子流的静电离子聚焦装置。