Two-electrode design for electrostatic ion trap integrable in polar coordinates

Abstract

Field with additive quadratic dependence on one of coordinates guarantees charged particle motion equation integrability was studied. Ion motion finiteness conditions in electrostatic ion trap are found. As a result, the ability to build ion trap was shown. Potential parameter values providing sufficient workspace between two field-defining electrodes was detected. The algorithm of optimal coordination of beam characteristics and electrode configuration was built.

Keywords

• mass spectrometry
• ion trap
• ideal focusing