Patent ID: 7038216

Claim:
A electrostatic shape-shifting ion optics, comprising: an outer electrode defining an interior region between first and second opposed open ends; a first inner electrode positioned within the interior region of said outer electrode at about the first open end of said outer electrode; a second inner electrode positioned within the interior region of said outer electrode at about the second open end of said outer electrode; a first end cap electrode positioned at about the first open end of said outer electrode so that the first end cap electrode substantially encloses the first open end of said outer electrode; a second end cap electrode positioned at about the second open end of said outer electrode so that the second end cap electrode substantially encloses the second open end of said outer electrode; and a voltage source operatively connected to each of said outer electrode, said first and second inner electrodes, and said first and second end cap electrodes, said voltage source applying voltage functions to each of said electrodes to produce an electric field within an interior space enclosed by said electrodes.