Anion generating and electron capture dissociation apparatus using cold electrons
US9230791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2011 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Nov 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An anion generating and electron capture dissociation apparatus using cold electrons, which comprises a cold electron generation module configured to generate a large quantity of cold electrons from ultraviolet photons radiated into a mass spectrometer vacuum chamber which is in a high vacuum state has a plurality of ultraviolet diodes configured to emit the ultraviolet photons in the mass spectrometer vacuum chamber. Micro-channel plate (MCP) electron multiplier plates induce and amplify initial electron emissions of the ultraviolet photons from the ultraviolet diodes, and generate a large quantity of electron beams from a rear plate. An electron focusing lens is configured to focus the electron beams amplified through the MCP electron multiplier plates. A grid is configured to adjust energy and an electric current of the electron beams together with the electron focusing lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.