Method of eliminating thermally induced beam drift in an electron beam separator
US10340114B1 · kind B1 · utility
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5References
13Claims
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/1516
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
These electron beam separator designs address thermally-induced beam drift in an electron-optical system. A heater coil wrapped around the beam separator unit can maintain constant power. Additional coils also can be wrapped around the beam separator in a bifilar manner, which can maintain constant power in the beam separator coils. Wien power can be determined, and then heater coil current can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.