Creating multiple electron beams with a photocathode film
US12283453B2 · kind B2 · utility
0Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2022 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jul 7, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/2448
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron-beam device includes a laser and a photocathode film. The photocathode film has a front side and a back side and emits a plurality of electron beamlets when illuminated from the back side using the laser. The electron-beam device also includes electrodes to extract the plurality of electron beamlets from the front side of the photocathode film and to control shapes of the plurality of electron beamlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.