Ionization chamber and mass spectrometer having a corona needle which is externally removable from a closed ionization chamber
US5726447A · kind A · utility
23Cited by
3References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jul 12, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an ionization chamber. More particularly, the invention relates to a mass spectrometer system having an ionization chamber incorporating a corona needle removable from outside the closed ionization chamber. In preferred embodiments, the corona needle is self-positioning and engages and disengages operational or safety electrical connections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.