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Image: Cyclotron motion wider view

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Description: English: Beam of electrons emitted by an electron gun moving in a circle in a magnetic field (cyclotron motion). The electrons themselves are invisible, but their path is made visible by residual air molecules which glow by fluorescence when struck by the fast-moving electrons.
Title: Cyclotron motion wider view
Credit: Own work
Author: Marcin Białek
Usage Terms: GNU Free Documentation License
License: GFDL
License Link: http://www.gnu.org/copyleft/fdl.html
Attribution Required?: Yes

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