### Abstract

Quantitative microanalysis by electron energy-loss spectrometry requires knowledge of partial inner-shell ionization cross-sections. Data for the L_{23}-edges of the elements strontium to molybdenum are not well known. We have therefore measured cross-section ratios (k-factors) for the L_{23}-edges of the elements Sr to Mo using thin film oxide-standards. The experimental values are compared with calculations derived from a modified hydrogenic and a Hartree-Slater model. The results are presented in terms of an integrated dipole oscillator strength to facilitate both comparisons between theory and experiment, and calculations of cross-sections for particular experimental conditions. While hydrogenic theory oscillator-strength values deviate from the experimental ones by more than 30%, there is good agreement between Hartree-Slater theory and experiment. We have also compared the relative microanalytical sensitivities for the M_{45}- and L_{23}-ionization edges of these elements.

Original language | English (US) |
---|---|

Pages (from-to) | 239-245 |

Number of pages | 7 |

Journal | Ultramicroscopy |

Volume | 63 |

Issue number | 3-4 |

DOIs | |

State | Published - Jul 1996 |

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### ASJC Scopus subject areas

- Materials Science(all)
- Instrumentation

### Cite this

_{23}-edges of the elements Sr to Mo for quantitative EELS analysis.

*Ultramicroscopy*,

*63*(3-4), 239-245. https://doi.org/10.1016/0304-3991(96)00042-3

**Ionization cross-sections for the L _{23}-edges of the elements Sr to Mo for quantitative EELS analysis.** / Hofer, Ferdinand; Kothleitner, Gerald; Rez, Peter.

Research output: Contribution to journal › Article

_{23}-edges of the elements Sr to Mo for quantitative EELS analysis',

*Ultramicroscopy*, vol. 63, no. 3-4, pp. 239-245. https://doi.org/10.1016/0304-3991(96)00042-3

_{23}-edges of the elements Sr to Mo for quantitative EELS analysis. Ultramicroscopy. 1996 Jul;63(3-4):239-245. https://doi.org/10.1016/0304-3991(96)00042-3

}

TY - JOUR

T1 - Ionization cross-sections for the L23-edges of the elements Sr to Mo for quantitative EELS analysis

AU - Hofer, Ferdinand

AU - Kothleitner, Gerald

AU - Rez, Peter

PY - 1996/7

Y1 - 1996/7

N2 - Quantitative microanalysis by electron energy-loss spectrometry requires knowledge of partial inner-shell ionization cross-sections. Data for the L23-edges of the elements strontium to molybdenum are not well known. We have therefore measured cross-section ratios (k-factors) for the L23-edges of the elements Sr to Mo using thin film oxide-standards. The experimental values are compared with calculations derived from a modified hydrogenic and a Hartree-Slater model. The results are presented in terms of an integrated dipole oscillator strength to facilitate both comparisons between theory and experiment, and calculations of cross-sections for particular experimental conditions. While hydrogenic theory oscillator-strength values deviate from the experimental ones by more than 30%, there is good agreement between Hartree-Slater theory and experiment. We have also compared the relative microanalytical sensitivities for the M45- and L23-ionization edges of these elements.

AB - Quantitative microanalysis by electron energy-loss spectrometry requires knowledge of partial inner-shell ionization cross-sections. Data for the L23-edges of the elements strontium to molybdenum are not well known. We have therefore measured cross-section ratios (k-factors) for the L23-edges of the elements Sr to Mo using thin film oxide-standards. The experimental values are compared with calculations derived from a modified hydrogenic and a Hartree-Slater model. The results are presented in terms of an integrated dipole oscillator strength to facilitate both comparisons between theory and experiment, and calculations of cross-sections for particular experimental conditions. While hydrogenic theory oscillator-strength values deviate from the experimental ones by more than 30%, there is good agreement between Hartree-Slater theory and experiment. We have also compared the relative microanalytical sensitivities for the M45- and L23-ionization edges of these elements.

UR - http://www.scopus.com/inward/record.url?scp=0030199091&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030199091&partnerID=8YFLogxK

U2 - 10.1016/0304-3991(96)00042-3

DO - 10.1016/0304-3991(96)00042-3

M3 - Article

AN - SCOPUS:0030199091

VL - 63

SP - 239

EP - 245

JO - Ultramicroscopy

JF - Ultramicroscopy

SN - 0304-3991

IS - 3-4

ER -