Mass spectrometers having segmented electrodes and associated methods

US11081331B2 · kind B2 · utility

Assignee

• Duke University · US

Inventors

• Zach Russell · Durham, US
• Michael Gehm · Durham, US
• Jeffrey T. Glass · Apex, US
• Shane Di Dona · Durham, US
• Evan CHEN · San Diego, US
• Charles Parker · Mebane, US
• Jason Amsden · Durham, US
• David Jones Brady · Durham, US

Key dates

• Filing date: Oct 28, 2016
• Grant date: Aug 3, 2021
• Expiry date: Oct 28, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J49/322
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Disclosed herein are mass spectrometers having segmented electrodes and associated methods. According to an aspect, an apparatus or mass spectrometer includes an ion source configured to generate ions from a sample. The apparatus also includes a detector configured to detect a plurality of mass-to-charge ratios associated with the ions. Further, the apparatus includes segmented electrodes positioned between the ion source and the detector. The apparatus also includes a controller configured to selectively apply a voltage across the segmented electrodes for forming a predetermined electric field profile.