Patent · US Expired

Apparatus and method for using a volume conductive electrode with ion optical elements for a time-of-flight mass spectrometer

US6924480B2 · kind B2 · utility

1Cited by

11References

27Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Wytze E. van der Veer · Irvine, US
Matthew F. Appel · Irvine, US
Thorsten Benter · Haan, DE

Key dates

Filing date	Feb 13, 2003
Grant date	Aug 2, 2005
Priority date	—
Expiry date	Oct 4, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A technique employing volume conductive electrodes for the generation of linear or non-linear electric fields is provided for devices used in charged ion optics. A hollow cylinder of a conductive polymer, which is loaded with conductive carbon particles or inherently conductive, and which is used to improve the performance of a dual stage gridless reflectron. Instrumental resolution measurements comparing a conventional discrete ring reflectron with a hybrid polymeric/discrete ring validate the design.

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