System and method for enhanced ion pump lifespan
US10665437B2 · kind B2 · utility
2Cited by
44References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2015 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Mar 12, 2036 |
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.