Variable-focus magnetostatic lens
US10998158B1 · kind B1 · utility
2Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J3/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Variable-focus solenoidal lenses for charged particle beams with integrated emittance filtering are disclosed. The emittance may be controlled via selection of collimating irises. The focal length may be changed by altering the spacing between two permanent ring magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.