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Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
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Atomic Emission Spectroscopy: Instrumentation

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Atomic Absorption Spectroscopy: Instrumentation

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Related Experiment Video

Updated: Jun 21, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

A unified analytical framework for Mössbauer synchrotron sources.

Krzysztof R Szymański¹

¹Faculty of Physics, University of Bialystok, K. Ciolkowskiego 1L, 15-245 Bialystok, Poland.

Journal of Synchrotron Radiation

|June 19, 2026

Summary

We developed a new analytical framework for Mössbauer spectroscopy, improving the accuracy and speed of analyzing nuclear hyperfine interactions. This method enhances the determination of magnetic and electronic properties in complex materials.

Keywords:

Fisher information analysis X-ray free-electron lasers hyperfine interactions intensity tensor formalism synchrotron Mössbauer source

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Last Updated: Jun 21, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

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Area of Science:

Nuclear Physics
Materials Science
Spectroscopy

Background:

Next-generation Mössbauer spectroscopy requires advanced modeling for nuclear hyperfine interactions.
Synchrotron and X-ray free-electron laser facilities necessitate rapid, accurate, and polarization-aware analysis.

Purpose of the Study:

To present a unified analytical framework for modeling nuclear hyperfine interactions.
To provide exact, rotationally invariant expressions for resonance energies and transition probabilities.
To enable efficient global fitting and modeling of hyperfine interactions in complex materials.

Main Methods:

Developed a unified analytical framework avoiding Hamiltonian diagonalization.
Expressed intensities in terms of hyperfine invariants.
Introduced a quantitative identifiability metric and used Monte Carlo sampling.

Main Results:

Achieved exact, rotationally invariant expressions for simultaneous magnetic dipole and electric quadrupole interactions.
Demonstrated efficient global fitting and modeling of hyperfine interaction distributions.
Showed that polarization control significantly improves hyperfine parameter determination.

Conclusions:

The presented framework offers a mathematically transparent and computationally efficient toolset for modern Mössbauer spectroscopy.
Accelerates studies of iron-based compounds and magnetic/electronic/structural order.
Applicable to extreme conditions and nanoscale geometries.