https://doi.org/10.1140/epjd/s10053-024-00862-2
Regular Article - Atomic and Molecular Collisions
Total cross section measurements of electron scattering from NH3 in the intermediate-energy region
Institute of Plasma Technology, Korea Institute of Fusion Energy, 37 Dongjangsan-Ro, 54004, Gunsan, Jeollabuk-Do, Republic of Korea
Received:
4
March
2024
Accepted:
7
May
2024
Published online:
30
May
2024
We present measurements of the total cross section (TCS) for electron scattering by ammonia in the energy range of 18.5 − 90 eV using a transmission attenuation technique. The overall TCS values were below 18.3 × 10–16 cm2 and exhibited a decreasing trend with increased electron energy within the measuring energy region. The total uncertainty of this measurement was evaluated to be in the range of 3.8 − 18.3%, which varied with the incident electron energies. The measured TCS values were mostly consistent with previous experimental and theoretical results, demonstrating the reliability of our experimental findings. Minor discrepancies observed in comparison with other studies at relatively high energy levels may be attributed to differences in the experimental conditions and uncertainties. This study highlights the significance of precise TCS measurements in enhancing our understanding of electron–molecule interactions in ammonia within the intermediate-energy range of 18.5 − 90 eV. Although an overall agreement exists between theory and experiment, there are still discrepancies, particularly at higher energies, warranting further investigation.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
