Inventors:
Jun Zhang - Albuquerque NM
Benjamin D. Gardner - Albuquerque NM
Christie G. Enke - Albuquerque NM
Assignee:
Science Technology Corporation UNM - Albuquerque NM
International Classification:
H01J 4900
Abstract:
Novel ion mirrors comprising, in a preferred embodiment, three cylinders, rectangles or truncated cones to improve the resolving power in the time-of-flight mass spectrometers over broad ion kinetic energy ranges. The achieved electric field is non-linear along the mirror axis and relatively homogeneous in the mirror off-axis directions. Combined with dimension optimization, in a preferred embodiment, the adjustment of only two parameters of element voltages can yield preferred electric field distribution to fit different ion optical systems.