Albert Crewe
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Albert Victor Crewe was a British-born American physicist and inventor of the modern scanning transmission electron microscope capable of taking still and motion pictures of atoms, a technology that p
Crewe (right, facing camera) explains the ZGS's Cockroft-Walton preaccelerator.
Field emission gun
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A field emission gun is a type of electron gun in which a sharply pointed Müller-type emitter is held at several kilovolts negative potential relative to a nearby electrode, so that there is sufficien
Albert Crewe
…to leave Argonne and return to the university's physics faculty, which had granted him a full professorship in 1963. In 1964 Crewe developed the first field emission electron gun in collaboration with Hitachi, a new type of electron source that enabled much higher optical quality than had previously been possible. This gun…
Schottky-emitter electron source of an Electron microscope