发明名称 |
Apparatus for producing secondary electrons, a secondary electrode, and an acceleration electrode |
摘要 |
An apparatus includes a primary electrode and an acceleration electrode. The acceleration electrode or, alternatively, an additional secondary electrode contains a slot that extends obliquely through the acceleration electrode or through the secondary electrode. This measure allows secondary electrons to be produced in a highly effective manner.
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申请公布号 |
US2004104657(A1) |
申请公布日期 |
2004.06.03 |
申请号 |
US20030718777 |
申请日期 |
2003.11.21 |
申请人 |
KYEK ANDREAS |
发明人 |
KYEK ANDREAS |
分类号 |
H01J37/02;H01J37/06;H01J43/02;(IPC1-7):H01J1/02 |
主分类号 |
H01J37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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