发明名称 |
Field emission cold cathode |
摘要 |
A field emission cold cathode for use in vacuum tubes. A carbon velvet material is coated with a low work function cesiated salt and bonded to a cathode surface. The cathode will emit electrons when an electric field is applied. The carbon velvet material is comprised of high aspect ratio carbon fibers embedded perpendicular to a base material.
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申请公布号 |
US6683399(B2) |
申请公布日期 |
2004.01.27 |
申请号 |
US20010681703 |
申请日期 |
2001.05.23 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
SHIFFLER, JR. DONALD A. |
分类号 |
H01J1/304;(IPC1-7):H01J19/06 |
主分类号 |
H01J1/304 |
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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