Image: Electron avalanche

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Description: Visualisation of an electron avalanche, also known as a Townsend discharge or a townsend avalanche. The applied electric field accelerates free electrons to collide with other atoms and release further electrons, causing an avalanche. This phenomena is used in a variety of radiation and particle detection instruments where the gas multiplication effect is used. This includes Geiger-Muller counters and Proportional counters.
Title: Electron avalanche
Credit: Own work
Author: Dougsim
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes

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