Patent · US Active

Multi-reflection mass spectrometer with deceleration stage

US10141176B2 · kind B2 · utility

21Cited by

1References

40Claims

0Family size

Assignee

THERMO FISHER SCIENTIFIC (BREMEN) GMBH · DE

Inventors

Hamish Stewart · Bremen, DE
Dmitry Grinfeld · Bremen, DE
Alexander A. Makarov · Bremen, DE

Key dates

Filing date	Nov 1, 2017
Grant date	Nov 27, 2018
Priority date	—
Expiry date	Nov 1, 2037

Classification

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

Abstract

Disclosed herein is a multi-reflection mass spectrometer comprising two ion mirrors spaced apart and opposing each other in an X direction, each mirror elongated along a drift direction Y orthogonal to the direction X, and an ion injector for injecting ions as an ion beam into the space between the ion mirrors at an inclination angle to the X direction. Along a first portion of their length in the drift direction Y the ion mirrors converge with a first degree of convergence, and along a second portion of their length in the drift direction Y the ion mirrors converge with a second degree of convergence or are parallel, the first portion of their length being closer to the ion injector than the second portion and the first degree of convergence being greater than the second degree of convergence.

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