发明名称 |
Vacuum Encapsulated Hermetically Sealed Diamond Amplified Cathode Capsule and Method for Making Same |
摘要 |
A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first cold-weld ring disposed between the cathode element and the annular insulating spacer and a second cold-weld ring disposed between the annular insulating spacer and the diamond window element. The cathode capsule is formed by a vacuum cold-weld process such that the first cold-weld ring forms a hermetical seal between the cathode element and the annular insulating spacer and the second cold-weld ring forms a hermetical seal between the annular spacer and the diamond window element whereby a vacuum encapsulated chamber is formed within the capsule. |
申请公布号 |
US2014117837(A1) |
申请公布日期 |
2014.05.01 |
申请号 |
US201214115534 |
申请日期 |
2012.05.09 |
申请人 |
BROOKHAVEN SCIENCE ASSOCIATES, LLC |
发明人 |
RAO TRIVENI;WALSH JOHN;GANGONE ELIZABETH |
分类号 |
H01J29/04;H01J9/12;H01J9/18 |
主分类号 |
H01J29/04 |
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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