# Cathode surface 1

- By: Pavel.Somov
- Date: 2020-05-20
- Classification: Photograph
- Credit line: File:Cathode surface 1.png
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cathode_surface_1.jpg)
- Rights: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/d/d1/Cathode_surface_1.jpg/1920px-Cathode_surface_1.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Color-enhanced scanning electron microscopy (SEM) image of a field emission cathode surface after use. Field of view = 13,2 𝜇μm. Captured with a TESCAN LYRA3.