System and method for enhanced ion pump lifespan
US11742191B2 · kind B2 · utility
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48References
3Claims
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Key dates
| Filing date | Jun 28, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Jun 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Within an ion pump, accelerated ions leave the center portion of an anode tube due to the anode tube symmetry and the generally symmetrical electric fields present. The apparent symmetry within the anode tube may be altered by making the anode tube longitudinally segmented and applying independent voltages to each segment. The voltages on two adjacent segments may be time varying at different rates to achieve a rasterizing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.