Patent · US Expired

Hybrid mass spectrometer

US4536652A · kind A · utility

13Cited by

2References

11Claims

0Family size

Assignee

Finnigan MAT GmbH · DE

Inventors

Graham Cooks · West Lafayette, US
Michael S. Story · Los Gatos, US
Gerhard Jung · Delmenhorst, DE
Peter Dobberstein · Bremen, DE

Key dates

Filing date	Oct 14, 1983
Grant date	Aug 20, 1985
Priority date	—
Expiry date	Oct 14, 2003

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/004
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a hybrid mass spectrometer, a high-energy collision chamber (8) is arranged in a field-free region (12) which, in the direction of travel of the ions, is located after the first stage (1 to 6). A lens arrangement (9) serves for decelerating daughter ions of different energies to a fixed energy, and preferably at the same time also for shaping the ion beam. Preferably, the hybrid mass spectrometer is of BEQQ configuration.

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