Patent · US Active

Ion injection to an electrostatic trap

US11328922B2 · kind B2 · utility

1Cited by

1References

22Claims

0Family size

Assignee

THERMO FISHER SCIENTIFIC (BREMEN) GMBH · DE

Inventors

Mikhail E. Belov · Richland, US
Eduard V. Denisov · Bremen, DE
Gregor Quiring · Hamburg, DE
Dmitry Grinfeld · Bremen, DE

Key dates

Filing date	May 22, 2017
Grant date	May 10, 2022
Priority date	—
Expiry date	May 22, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/4295
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Ions are injected into an orbital electrostatic trap. An ejection potential is applied to an ion storage device, to cause ions stored in the ion storage device to be ejected towards the orbital electrostatic trap. Synchronous injection potentials are applied to a central electrode of the orbital electrostatic trap and a deflector electrode associated with the orbital electrostatic trap, to cause the ions ejected from the ion storage device to be captured by the electrostatic trap such that they orbit the central electrode. Application of the ejection potential and application of the synchronous injection potentials are each started at respective different times, the difference in times being selected based on desired values of mass-to-charge ratios of ions to be captured by the orbital electrostatic trap.

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