Patent · US Active

Mirror lens for directing an ion beam

US9818591B2 · kind B2 · utility

0Cited by

5References

26Claims

0Family size

Assignee

THERMO FISHER SCIENTIFIC (BREMEN) GMBH · DE

Inventors

Johannes Schwieters · Ganderkesee, DE
Gerhard Jung · Delmenhorst, DE

Key dates

Filing date	Aug 3, 2016
Grant date	Nov 14, 2017
Priority date	—
Expiry date	Aug 3, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/061
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrostatic dual-mode lens assembly is provided for selectively transmitting or reflecting an ion beam in a mass spectrometer. The assembly comprises at least one electrode that provides a switchable electric field that, during a first mode of operation, directs an ion beam that enters the assembly along a first path so that the beam is transmitted through the assembly along the first path, and during a second mode of operation, directs an ion beam that enters the assembly along the first path so that the ion beam is reflected by the electric field and exits the assembly along a second path. Methods for operating a mass spectrometer using an electrostatic lens are also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.