Electron impact ionization of U88+-U91+
作者： Nelson Claytor , B. Feinberg , Harvey Gould , Curtis E. Bemis , Jorge Gomez del Campo
DOI: 10.1103/PHYSREVLETT.61.2081
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摘要: We channeled 405-MeV/nucleon uranium ions in Si single crystals to determine the electron impact ionization cross section for berylliumlike-hydrogenlike by 222-keV electrons, Our sections are 3.9, 11.0, 16.0, and 31.0 b (+100%, -50%), respectively, ionizing $1s$, ${1s}^{2}$, $2s$, ${2s}^{2}$ electrons. $1s$ ${1s}^{2}$ results disagree with present theory. $2s$ not accurate enough distinguish between theories.
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