| Popis: |
Reproducibility of charge-referenced line energy data can be markedly improved by (1) calibrating the instrument voltage scale with natural lines, and (2) gathering data in such a way that drifts in charging can be corrected. Data on a variety of aluminum-silicon-oxygen compounds appear to be reproducible among different laboratories to within 0.10 eV. Such reproducibility, combined with recording of Auger energies by using the bremsstrahlung component of the radiation, makes possible identification of most such chemical states by line energies alone, even though the ranges in chemical shifts are only 2–3 eV. |
