Publication detail
On the influence of uncertainties in scattering potentials on quantitative analysis using keV ions
BRUCKNER, B. STRAPKO, T. SORTICA, M. BAUER, P. PRIMETZHOFER, D.
English title
On the influence of uncertainties in scattering potentials on quantitative analysis using keV ions
Type
journal article in Web of Science
Language
en
Original abstract
Experimental spectra from Medium-Energy Ion Scattering were compared to Monte-Carlo simulations (employing the TRBS code) to obtain information on the scattering potential. The impact of uncertainties in the interatomic potential on quantification of sample properties such as thickness, composition or electronic stopping was investigated for different scattering geometries: backscattering and transmission. For backscattered He ions with tens of keV primary energy the scattering potential was found to overestimate the multiple scattering background in the energy spectra resulting in an uncertainty of < 3 % in quantitative analysis. Light ions transmitted through a sample for equivalent path length in the medium are only affected minorly by changes in the scattering potential. This effect becomes more distinct for heavier primary ions.
English abstract
Experimental spectra from Medium-Energy Ion Scattering were compared to Monte-Carlo simulations (employing the TRBS code) to obtain information on the scattering potential. The impact of uncertainties in the interatomic potential on quantification of sample properties such as thickness, composition or electronic stopping was investigated for different scattering geometries: backscattering and transmission. For backscattered He ions with tens of keV primary energy the scattering potential was found to overestimate the multiple scattering background in the energy spectra resulting in an uncertainty of < 3 % in quantitative analysis. Light ions transmitted through a sample for equivalent path length in the medium are only affected minorly by changes in the scattering potential. This effect becomes more distinct for heavier primary ions.
Keywords in English
Medium-Energy Ion Scattering; Low-Energy Ion Scattering; Interaction potential; Screening corrections; Monte-Carlo simulations
Released
01.05.2020
Publisher
ELSEVIER
Location
AMSTERDAM
ISSN
0168-583X
Volume
470
Number
1
Pages from–to
21–27
Pages count
7
BIBTEX
@article{BUT177353,
author="Barbara {Bruckner} and Tomáš {Strapko} and Mauricio {Sortica} and Peter {Bauer} and Daniel {Primetzhofer},
title="On the influence of uncertainties in scattering potentials on quantitative analysis using keV ions",
year="2020",
volume="470",
number="1",
month="May",
pages="21--27",
publisher="ELSEVIER",
address="AMSTERDAM",
issn="0168-583X"
}