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Updated: Dec 2, 2025

Split Point Analysis and Uncertainty Quantification of Thermal-Optical Organic/Elemental Carbon Measurements
Published on: September 7, 2019
Absolute intensity calibration for carbon-edge soft X-ray scattering.
Thomas Ferron1, Devin Grabner1, Terry McAfee1
1Department of Physics and Astronomy, Washington State University, Pullman, WA 99163, USA.
A new method calibrates resonant soft X-ray scattering (RSOXS) to absolute intensity using X-ray fluorescence as a standard. This enables quantitative analysis of nanostructures in soft matter, improving RSOXS measurements.
Area of Science:
- Materials Science
- Soft Matter Physics
- Spectroscopy
Background:
- Resonant soft X-ray scattering (RSOXS) combines structural and chemical analysis of soft matter nanostructures.
- Current RSOXS methods lack reliable absolute intensity calibration, limiting quantitative analysis of composition and interfaces.
Purpose of the Study:
- To introduce a novel technique for calibrating RSOXS to absolute intensity.
- To enable quantitative analysis of complex nanostructures in soft matter.
Main Methods:
- Utilized X-ray fluorescence from a thin polymer film as an angle-independent scattering standard.
- Calibrated RSOXS at the carbon absorption edge.
- Verified absolute intensity by measuring the Flory-Huggins interaction parameter in a polymer melt.
Main Results:
- Successfully developed and demonstrated a method for absolute intensity calibration of RSOXS.
- Showcased the utility of X-ray fluorescence as a reliable scattering standard.
- Enabled quantitative analysis of polymer melt properties.
Conclusions:
- The introduced calibration technique significantly enhances the quantitative capabilities of RSOXS.
- This method provides a reproducible pathway for researchers to improve RSOXS data analysis.
- The findings pave the way for more accurate characterization of soft matter nanostructures.
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