Two-dimensional electrode constructions for ion processing

An electrode structure for manipulating ions, comprising:

• a plurality of electrodes coaxially disposed about a central axis, each electrode having an axial length extending generally in the direction of the central axis, each electrode including a first axial end, a second axial end, an outside surface generally facing away from an interior space of the electrode structure, and an inside surface generally facing the interior space and axially extending from the first axial end to the second axial end, wherein:
• at least one of the electrodes is an apertured electrode having an aperture axially extending in the axial direction and radially extending from the inside surface to the outside surface;
• and
• the inside surface of the apertured electrode includes a surface profile, the surface profile is uniform along a uniform section length in the axial direction, the aperture is positioned along the uniform section length, and the uniform section length is greater than the axial length of the aperture.

An electrode for generating an electric field in an ion processing device, the electrode comprising:

• a body including a first axial end, an opposing second axial end, an elongated length extending from the first axial end to the second axial end, a thickness lying in a cross-sectional plane orthogonal to the elongated length, and an outer surface extending from the first axial end to the second axial end, the outer surface including a curved section extending from the first axial end to the second axial end, wherein:
• the body is segmented into a first end section, a central section axially spaced from the first end section by a first gap, and a second end section axially spaced from the central section by a second gap;
• and
• at least a portion of the first gap and at least a portion of the second gap are oriented at an angle relative the cross-sectional plane.