Comparative experimental study of x-ray absorption spectroscopy and electron energy loss spectroscopy on passivated U surfaces

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X-ray absorption spectroscopy and electron energy loss spectroscopy are complementary analytical techniques on energy and spatial resolution. These techniques are based on the same fundamental physical process of core excitation with either an incident photon or incident electron. In the proper experimental configuration the electron and photon inelastic scattering amplitudes are comparable and thus the x-ray and electron absorption edges look identical. We have applied these two complementary analytical techniques to investigate the electronic structure of C ion implanted U. Implantation of C{sup +} ions into U{sup 238} has been shown to produce a physically and chemically modified surface layer ... continued below

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7 p. (0.3 MB)

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Nelson, A; Moberlychan, W; Bliss, R A; Siekhaus, W; Felter, T & Denliner, J December 11, 2006.

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X-ray absorption spectroscopy and electron energy loss spectroscopy are complementary analytical techniques on energy and spatial resolution. These techniques are based on the same fundamental physical process of core excitation with either an incident photon or incident electron. In the proper experimental configuration the electron and photon inelastic scattering amplitudes are comparable and thus the x-ray and electron absorption edges look identical. We have applied these two complementary analytical techniques to investigate the electronic structure of C ion implanted U. Implantation of C{sup +} ions into U{sup 238} has been shown to produce a physically and chemically modified surface layer that passivates the surface preventing further air oxidation and corrosion. Comparison of the resultant spectra reveal that transitions between the initial state and a series of final states yield numerous strong features at the absorption edge that can provide structural information and information on the local chemical environment, including the character of the U 5f state.

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7 p. (0.3 MB)

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PDF-file: 7 pages; size: 0.3 Mbytes

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  • Presented at: 2006 MRS Fall Meeting, Boston, MA, United States, Nov 27 - Dec 01, 2006

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  • Report No.: UCRL-PROC-226789
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 902332
  • Archival Resource Key: ark:/67531/metadc882569

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  • December 11, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • April 17, 2017, 12:57 p.m.

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Nelson, A; Moberlychan, W; Bliss, R A; Siekhaus, W; Felter, T & Denliner, J. Comparative experimental study of x-ray absorption spectroscopy and electron energy loss spectroscopy on passivated U surfaces, article, December 11, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc882569/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.