Postcollision interactions in the Auger decay of the ArLshell
| Autor: | Z. X. He, D. Hansen, W. C. Stolte, J. N. Cutler, James A. R. Samson |
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| Rok vydání: | 1996 |
| Předmět: |
Physics
Auger effect Electron capture Electron Photoionization Atomic and Molecular Physics and Optics L-shell symbols.namesake Autoionization Excited state Physics::Space Physics Physics::Atomic and Molecular Clusters symbols Astrophysics::Solar and Stellar Astrophysics Atomic physics Radioactive decay |
| Zdroj: | Physical Review A. 54:2099-2106 |
| ISSN: | 1094-1622 1050-2947 |
| Popis: | The photoionization cross sections for ${\mathrm{Ar}}^{+}$ through ${\mathrm{Ar}}^{4+}$, produced by the Auger decay of a 2p hole in argon, have been measured between 242 eV and 253 eV by the use of synchrotron radiation. The high resolution of the monochromator has allowed a detailed study of the postcollision interactions that occur in this spectral region. The concept of photoelectron recapture by ${\mathrm{Ar}}^{2+}$ to produce the ${\mathrm{Ar}}^{+}$ continuum is studied. The relative values of the quantum-mechanical calculations of the photoelectron recapture probability are shown to be in excellent agreement with the present data. The magnitude and shape of the ${\mathrm{Ar}}^{2+}$ continuum has been explained on the basis that about 67% of the recaptured photoelectrons produce excited states of ${\mathrm{Ar}}^{+}$ which subsequently reemit the electrons by autoionization. \textcopyright{} 1996 The American Physical Society. |
| Databáze: | OpenAIRE |
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