Direct evidence for dynamic broadening of the energy spectra associated with the later ateps of an auger cascade

R. Sundaramoorthy, A. H. Weiss, S. L. Hulbert, Robert Bartynski

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Auger cascade decay processes are of critical importance in x-ray-induced biological damage, chemical reactions, and desorption. Here, we report the first measurements of the isolated energy spectra of electrons emitted during the later steps of an Auger cascade process in a solid (MnO). The large widths and energy gains observed in cascade-induced Mn MVV Auger spectra (as compared to the spectra resulting from direct photoexcitation of the M core hole) provide strong evidence that valence holes created in previous cascade steps participate dynamically in later cascade steps.

Original languageEnglish (US)
Article number127601
JournalPhysical review letters
Volume101
Issue number12
DOIs
StatePublished - Sep 19 2008

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cascades
energy spectra
photoexcitation
chemical reactions
desorption
damage
valence
decay
electrons
x rays
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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abstract = "Auger cascade decay processes are of critical importance in x-ray-induced biological damage, chemical reactions, and desorption. Here, we report the first measurements of the isolated energy spectra of electrons emitted during the later steps of an Auger cascade process in a solid (MnO). The large widths and energy gains observed in cascade-induced Mn MVV Auger spectra (as compared to the spectra resulting from direct photoexcitation of the M core hole) provide strong evidence that valence holes created in previous cascade steps participate dynamically in later cascade steps.",
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Direct evidence for dynamic broadening of the energy spectra associated with the later ateps of an auger cascade. / Sundaramoorthy, R.; Weiss, A. H.; Hulbert, S. L.; Bartynski, Robert.

In: Physical review letters, Vol. 101, No. 12, 127601, 19.09.2008.

Research output: Contribution to journalArticle

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AU - Hulbert, S. L.

AU - Bartynski, Robert

PY - 2008/9/19

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N2 - Auger cascade decay processes are of critical importance in x-ray-induced biological damage, chemical reactions, and desorption. Here, we report the first measurements of the isolated energy spectra of electrons emitted during the later steps of an Auger cascade process in a solid (MnO). The large widths and energy gains observed in cascade-induced Mn MVV Auger spectra (as compared to the spectra resulting from direct photoexcitation of the M core hole) provide strong evidence that valence holes created in previous cascade steps participate dynamically in later cascade steps.

AB - Auger cascade decay processes are of critical importance in x-ray-induced biological damage, chemical reactions, and desorption. Here, we report the first measurements of the isolated energy spectra of electrons emitted during the later steps of an Auger cascade process in a solid (MnO). The large widths and energy gains observed in cascade-induced Mn MVV Auger spectra (as compared to the spectra resulting from direct photoexcitation of the M core hole) provide strong evidence that valence holes created in previous cascade steps participate dynamically in later cascade steps.

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