K-shell auger transitions induced by Mo x-rays

L. Kövér, A. Nemethy, L. Cserny, D. Varga

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

For exciting K-Auger transitions of elements with atomic number between 13 and 26, Mo x-rays (Mo bremsstrahlung + Mo Lα, β) from a high voltage (max. 30 kV) source were used. High-resolution K-Auger spectra were measured by the help of a high luminosity hemispherical electron spectrometer. Spectral intensities obtained using the Mo x-ray source are compared to the respective intensities measured using an Al anode and source parameters usual for electron spectrometers. The attainable gain in Auger yields is between 2 and 15 for most elements investigated and reaches a factor of 20.5 in the case of P KLL. Optimum conditions of K-Auger excitation (regarding the atomic number region mentioned) are also discussed. As an example for application, the phosphorus K-Auger parameter has been determined for GaP, taking an advantage of the presence of the P 1s (Mo Lα) photoelectron line in the spectra excited by Mo x-rays. The higher analytical sensitivity, attainable by measuring Mo x-ray-induced P KLL Auger electrons compared to the sensitivity of the conventional XPS (Al Kα excited P 2p), is demonstrated in the case of a phosphoric compound (corrosion inhibitor) adsorbed on a polycrystalline Fe surface.

Original languageEnglish
Pages (from-to)659-665
Number of pages7
JournalSurface and Interface Analysis
Volume20
Issue number8
Publication statusPublished - Jul 1993

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X rays
spectrometers
Spectrometers
Electrons
Transition Elements
electrons
x rays
x ray sources
sensitivity
bremsstrahlung
inhibitors
phosphorus
high voltages
corrosion
photoelectrons
Corrosion inhibitors
anodes
Photoelectrons
luminosity
Phosphorus

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Kövér, L., Nemethy, A., Cserny, L., & Varga, D. (1993). K-shell auger transitions induced by Mo x-rays. Surface and Interface Analysis, 20(8), 659-665.

K-shell auger transitions induced by Mo x-rays. / Kövér, L.; Nemethy, A.; Cserny, L.; Varga, D.

In: Surface and Interface Analysis, Vol. 20, No. 8, 07.1993, p. 659-665.

Research output: Contribution to journalArticle

Kövér, L, Nemethy, A, Cserny, L & Varga, D 1993, 'K-shell auger transitions induced by Mo x-rays', Surface and Interface Analysis, vol. 20, no. 8, pp. 659-665.
Kövér L, Nemethy A, Cserny L, Varga D. K-shell auger transitions induced by Mo x-rays. Surface and Interface Analysis. 1993 Jul;20(8):659-665.
Kövér, L. ; Nemethy, A. ; Cserny, L. ; Varga, D. / K-shell auger transitions induced by Mo x-rays. In: Surface and Interface Analysis. 1993 ; Vol. 20, No. 8. pp. 659-665.
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