Field-emission microscope

The field-emission microscope employs a fine needle tip in a high vacuum to emit electrons, creating highly magnified images on a fluorescent screen. It made possible the visualization of single atoms.
Erwin Wilhelm-Mueller United States 1937
Field-emission microscope

The field-emission microscope employs a fine needle tip in a high vacuum to emit electrons, creating highly magnified images on a fluorescent screen. It made possible the visualization of single atoms.