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ionization |
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ionization: see ion ion, atom or group of atoms having a net electric charge .
Positive and Negative Electric ChargesA neutral atom or group of atoms becomes an ion by gaining or losing one or more electrons or protons. ..... Click the link for more information. . ionizationProcess by which electrically neutral atoms or molecules are converted to electrically charged atoms or molecules (ions) by the removal or addition of negatively charged electrons. It is one of the principal ways in which radiation transfers energy to matter, and hence of detecting radiation. In general, ionization occurs whenever sufficiently energetic charged particles or radiant energy travels through gases, liquids, or solids. A certain minimal level of ionization is present in the earth's atmosphere because of continuous absorption of cosmic rays from space and ultraviolet radiation from the sun. |
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| Standard equipment includes an ionization blower to eliminate static buildup. However, at the relatively low energies of solar photons, subtleties related to electron motion largely prevent the exciton-to-electron energy transfers, so only negligible impact ionization occurs, Nozik notes. 3]He ionization chamber with the position sensitive, charged particle collection methods of a MicroMegas detector. |
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ionization
