Berkeley Lab Highlights
 
onization by electron impact is what happens when an electron hits an atom with enough energy to knock loose one or more of the atomís own orbiting electrons. Such interactions are among the most fundamental phenomena in atomic physics, responsible for everything from the glow of fluorescent lights to the plasmas that engrave silicon chips. As with all scattering problems, the electron-ionization of a hydrogen atom begins with a particle incoming at a certain velocity.
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