Electron ionization source
The invention provides an electron ionization source, including an electron source, a repulsion electrode and an ion lens, and further including a first cylindrical component, an annular component and a second cylindrical component, wherein the electron source is arranged at the side part of the fir...
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The invention provides an electron ionization source, including an electron source, a repulsion electrode and an ion lens, and further including a first cylindrical component, an annular component and a second cylindrical component, wherein the electron source is arranged at the side part of the first cylindrical component, the repulsion electrode is arranged in the first cylindrical component with two open ends, the annular component is arranged on one side of the first cylindrical component, one side, far away from the first cylindrical component, of the annular component is provided with an outlet, and the inner diameter of the hollow inner part of the annular component is gradually reduced along the emitting direction of ions, the second cylindrical component is arranged in the outlet, and the iron lens is arranged on one side of the second cylindrical component along the emitting direction of the ions. The electron ionization source has the advantage of being high in ion emitting efficiency. |
|---|