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Related Concept Videos

Mixtures of Acids03:27

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Updated: Jan 30, 2026

Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence
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Material mixture solution analysis by a hybrid L-edge/L-XRF densitometer.

Sungyeop Joung1, Yewon Kim1, Seunghoon Park1

  • 1Korea Institute of Nuclear Nonproliferation and Control, Yuseong-daero 1534, Yuseong-gu, Daejeon 34054, Republic of Korea.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|January 25, 2019
PubMed
Summary

A new hybrid L-edge/L-XRF densitometer (HLED) accurately measures nuclear material concentrations in solutions. This method combines L-edge densitometry (LED) and X-ray fluorescence (XRF) for reliable multi-element analysis.

Keywords:
L-XRFL-edgeNuclear material solutionX-ray absorptionX-ray fluorescence

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Area of Science:

  • Nuclear Chemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Accurate quantification of nuclear materials in solutions is critical for nuclear safeguards and waste management.
  • Existing methods may have limitations in multi-element analysis or require complex sample preparation.
  • Hybrid techniques offer potential for enhanced accuracy and efficiency.

Purpose of the Study:

  • To evaluate the feasibility of a hybrid L-edge/L-XRF densitometer (HLED) for multi-element nuclear material assay.
  • To characterize major analytes using L-edge densitometry (LED) within the HLED system.
  • To develop and validate an exponential calibration method for L-XRF analysis considering matrix effects.

Main Methods:

  • Development of a hybrid L-edge/L-XRF densitometer (HLED).
  • Utilized nonradioactive surrogate solutions (gold and lead) for feasibility studies.
  • Applied L-edge densitometry (LED) for major analyte characterization.
  • Proposed and verified an exponential calibration method for L-XRF, accounting for total density and matrix effects.

Main Results:

  • Demonstrated the feasibility of HLED for multi-element nuclear material assay using surrogate solutions.
  • Successfully characterized the major analyte (gold) using LED.
  • The proposed exponential calibration method for L-XRF showed good performance, validated against uncertainties, biases, and International Target Values (ITV).

Conclusions:

  • The hybrid L-edge/L-XRF densitometer (HLED) is a viable technique for accurate nuclear material concentration determination.
  • The developed calibration method enhances the reliability of L-XRF analysis in complex matrices.
  • This hybrid approach offers a promising solution for nuclear material assay.