University of Oulu

Ozon, M., Tumashevich, K., Lin, J. J., & Prisle, N. L. (2023). Inversion model for extracting chemically resolved depth profiles across liquid interfaces of various configurations from XPS data: PROPHESY. Journal of Synchrotron Radiation, 30(5), 941–961. https://doi.org/10.1107/S1600577523006124

Inversion model for extracting chemically resolved depth profiles across liquid interfaces of various configurations from XPS data : PROPHESY

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Author: Ozon, Matthew1; Tumashevich, Konstantin1; Lin, Jack J.1;
Organizations: 1Center for Atmospheric Research, University of Oulu, PO Box 4500, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.4 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe20231013140041
Language: English
Published: International Union of Crystallography, 2023
Publish Date: 2023-10-13
Description:

Abstract

PROPHESY, a technique for the reconstruction of surface-depth profiles from X-ray photoelectron spectroscopy data, is introduced. The inversion methodology is based on a Bayesian framework and primal-dual convex optimization. The acquisition model is developed for several geometries representing different sample types: plane (bulk sample), cylinder (liquid microjet) and sphere (droplet). The methodology is tested and characterized with respect to simulated data as a proof of concept. Possible limitations of the method due to uncertainty in the attenuation length of the photo-emitted electron are illustrated.

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Series: Journal of synchrotron radiation
ISSN: 0909-0495
ISSN-E: 1600-5775
ISSN-L: 0909-0495
Volume: 30
Issue: 5
Pages: 941 - 961
DOI: 10.1107/S1600577523006124
OADOI: https://oadoi.org/10.1107/S1600577523006124
Type of Publication: A1 Journal article – refereed
Field of Science: 115 Astronomy and space science
Subjects:
Funding: The following funding is acknowledged: H2020 European Research Council (grant No. 717022); Academy of Finland (grant No. 308238; grant No. 314175; grant No. 316743; grant No. 335649; grant No. 331532; grant No. 351476).
EU Grant Number: (717022) SURFACE - The unexplored world of aerosol surfaces and their impacts.
Academy of Finland Grant Number: 308238
314175
316743
335649
331532
351476
Detailed Information: 308238 (Academy of Finland Funding decision)
314175 (Academy of Finland Funding decision)
316743 (Academy of Finland Funding decision)
335649 (Academy of Finland Funding decision)
331532 (Academy of Finland Funding decision)
351476 (Academy of Finland Funding decision)
Copyright information: © The Author(s) 2023. Published under a CC BY 4.0 licence.
  https://creativecommons.org/licenses/by/4.0/