Ionization Cross Sections by Electron Impact for Single Ionization from the Atomic Ground State

Yan Hua Li

doi:10.4028/www.scientific.net/AMR.998-999.140

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 998-999Ionization Cross Sections by Electron Impact for...

Ionization Cross Sections by Electron Impact for Single Ionization from the Atomic Ground State

Abstract:

Using the empirical formula with three free parameters recently proposed, ionization cross sections are given for the representation of cross sections for single ionization of free atoms from the ground stages by electron impact. Almost all experimental results can be approximated by this formula with 20% over the whole energy range between the threshold and 1 . All experimental results can be approximated with experimental error. The formula proposed is not suitable to regenerate the exact contour of fine structure in the ionization cross section curve. The probable error is estimated to be approximately 20%, but the error is larger than 40% and no fine structures are accounted for near the threshold.

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Periodical:

Advanced Materials Research (Volumes 998-999)

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140-143

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.998-999.140

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Online since:

July 2014

Authors:

Yan Hua Li*

Keywords:

Atom, Cross Section, Electron Impact, Ionization

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References

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