Patent 8481963 was granted and assigned to Agilent Technologies on July, 2013 by the United States Patent and Trademark Office.
Described herein is an ion slicer that: a) accelerates an ion beam towards a first electrode comprising an ion entrance slit, where the first electrode blocks a portion of ions with high displacement from the axis of the ion beam, thereby slicing the ion beam; and then b) decelerates the ion beam after it is sliced.