Orifice ring ion beam neutralizer
US4933546A · kind A · utility
4Cited by
16References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Aug 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H3/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A beam of negatively charged ions is neutralized by impinging jets which dislodge elctrode electrons from the ions. Gas jets are created by orifices circumferentially located around a ring. The symmetrical radial distribution of the orifices does not create a net radial thrust on the ring, which is an important consideration in low-gravity outer space. Further, maximized gas dynamics creates a neutralized beam with a uniform gas density at the exit thereof and an optimized neutralized ion fraction, as compared with the population of ions in the introduced beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.