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Thermionic cloud

  1. Mar 23, 2014 #1
    Hello:

    I would like to include a diagram for my presentation showing a thermionic cloud. I've looked on the computer for something to get me started and have come to a dead end. Does anyone know where I can look to get some ideas of what a thermionic cloud looks like?

    My understanding is that it is a cloud of negatively charged electrons around the cathode (negative) end.

    Thank you
     
  2. jcsd
  3. Mar 23, 2014 #2

    Redbelly98

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    Welcome to Physics Forums.

    I suggest a google image search.

    https://www.google.com/imghp

    Just type thermionic cloud in the search box. Several ways of representing the electrons come up among the choices.

    Thermionic space charge is another good search phrase.
     
    Last edited: Mar 23, 2014
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