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1. 发明申请

WO2007070500A2 ELECTRON SOURCE FOR IONIZATION WITH LEAKAGE CURRENT SUPPRESSION 审中-公开
标题翻译：用于泄漏电流抑制的电子源
公开(公告)号：WO2007070500A2
公开(公告)日：2007-06-21
申请号：PCT/US2006/047342
申请日：2006-12-12
申请人： VARIAN, INC. , WELLS, Gregory, J. , MARQUETTE, Edward, G.
发明人： WELLS, Gregory, J. , MARQUETTE, Edward, G.
IPC分类号： H01J49/14
CPC分类号： H01J49/14 , H01J3/024 , H01J49/08
摘要： ABSTRACT OF THE DISCLOSURE An electron source includes a first electrode, a second electrode, a thermionic element interposed between and electrically isolated from the first electrode and the second electrode, and a guard electrode interposed between and electrically isolated from the first electrode and the second electrode. The thermionic element and the guard electrode may be at substantially the same voltage. Another electron source includes a first electrode, a second electrode, a thermionic element interposed between and electrically isolated from the first electrode and the second electrode, and a thermal expansion component interposed between and electrically isolated from the first electrode and the second electrode. The thermal expansion component may be heated to cause expansion. The heating may be cycled to cause alternating expansion and contraction.
摘要翻译：发明内容电子源包括插入在第一电极和第二电极之间并且与第一电极和第二电极电绝缘的第一电极，第二电极和热离子元件，以及插入在第一电极和第二电极之间并与之隔离的保护电极。热电子元件和保护电极可以处于基本上相同的电压。另一电子源包括介于第一电极和第二电极之间并与之电隔离的第一电极，第二电极和热离子元件，以及介于第一电极和第二电极之间并与之电隔离的热膨胀部件。可以加热热膨胀组分以引起膨胀。可以循环加热以引起交替的膨胀和收缩。

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