Electron multiplier electrode and terahertz radiation source using the same
US7768181B2 · kind B2 · utility
2Cited by
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19Claims
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Key dates
| Filing date | Jan 8, 2008 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Jul 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J43/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are an electron multiplier electrode using a secondary electron extraction electrode and a terahertz radiation source using the electron multiplier electrode. The electron multiplier electrode includes: a cathode; an emitter disposed on the cathode and extracting electron beams; a gate electrode for switching the electron beams, the gate electrode being disposed on the cathode to surround the emitter; and a secondary electron extraction electrode disposed on the gate electrode and including a secondary electron extraction layer extracting secondary electrons due to collision of the electron beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.