Energy-stable accelerator with needle-like source and focused particle beam
US4555666A · kind A · utility
Inventor
Key dates
| Filing date | May 19, 1982 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | May 19, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H5/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high voltage particle accelerator and an energy analyzer fed back to the accelerator, in which the beam of extremely small diameter from a particle source of the field-emission or field-ionization type and the energy analyzer function to produce precisely defined high voltages; use of such an accelerator and focusing lenses to produce a microbeam with reduced chromatic aberration; and production of a microbeam by use of such an accelerator and focusing lenses of the achromatic quadrupole type, further compensated for aperture aberration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.