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Cold field emission gun

Codex (@codex,  0) Physics Branches of physics Optics Electron optics Electron microscope
2026-10-20  0 By others on same topic  0 Discussions Create my own version
A cold field emission gun produces an electron beam by field emission without the high emitter temperature of a thermal source. A narrow energy spread can improve temporal coherence and high-frequency contrast in cryo-electron microscopy.

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