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Electron Scattering from NO2: Cross Sections in the Energy Range of 1-1000 eV
Ana I Lozano1,2, Adrián García-Abenza1,3, Jaime Rosado4
1Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain.
Molecules (Basel, Switzerland)
|January 10, 2026
Summary
This study measured total electron scattering cross sections for NO2 molecules from 1-200 eV. Calculated cross sections for elastic, ionization, and excitation were compared with existing literature data.
Area of Science:
- Atomic and Molecular Physics
- Electron Scattering Physics
Background:
- Accurate electron scattering cross section data is crucial for understanding molecular interactions.
- Nitrogen dioxide (NO2) is an important atmospheric molecule, but comprehensive electron scattering data is limited.
Purpose of the Study:
- To experimentally measure Total Electron Scattering cross sections (TCSs) for NO2 molecules.
- To theoretically calculate integral elastic, ionization, and electronic/rotational excitation cross sections for NO2.
- To compare the obtained cross-section data with existing literature values.
Main Methods:
- Experimental measurement of TCSs using a magnetically confined electron beam transmission apparatus (1-200 eV).
- Theoretical calculation using the independent atom model-based screening corrected additivity rule including interference effects (IAM-SCAR+I) method (20-1000 eV).
Main Results:
- Experimental TCS data for NO2 with an estimated uncertainty of ±5%.
- Calculated integral cross sections for elastic scattering, ionization, and electronic/rotational excitation.
- A comprehensive comparison of the new data with recommended literature values.
Conclusions:
- The study provides new experimental and theoretical cross-section data for electron scattering on NO2.
- The results contribute to a more complete understanding of electron-molecule interactions involving NO2.
- The findings facilitate critical evaluation and refinement of existing electron scattering databases.
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