Journal ArticleDOI
Principles and procedures for determining absolute differential electron-molecule (atom) scattering cross sections
TLDR
In this article, the absolute elastic and inelastic differential cross sections (DCS) for electron impact on molecular (atomic) species are described and illustrated by examples, and a method of determining absolute differential electron-molecule scattering cross sections is generally applicable and provides reliable results.Abstract:
Procedures and calibration techniques for measuring the absolute elastic and inelastic differential cross sections (DCS) for electron impact on molecular (atomic) species are described and illustrated by examples. The elastic DCS for the molecule under study is first determined by calibration against helium using the relative flow technique. The second step involves the production of energy-loss spectra for the instrument response function, the unfolding of overlapping inelastic structures and the normalization of inelastic intensities to the elastic cross sections. It is concluded that this method of determining absolute differential electron-molecule (atom) scattering cross sections is generally applicable and provides reliable results.read more
Citations
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Journal ArticleDOI
Studies on GeF4 Valence and Rydberg States by Electron Impact Spectroscopy and Ab Initio Calculations
Shohei Ohtomi,Masamitsu Hoshino,Atsushi Suga,Hidetoshi Kato,Denis Duflot,Denis Duflot,Paulo Limão-Vieira,Paulo Limão-Vieira,H. Tanaka +8 more
TL;DR: The Rydberg series converging to the (lowest) ionization energy limits of GeF4 are identified according to the magnitude of the quantum defects (δ).
Journal ArticleDOI
Oscillator strengths and integral cross sections of the valence-shell excitations of sulfur dioxide studied by fast electron impact
Journal ArticleDOI
Oscillator strengths and integral cross-sections of the valence-shell excitations of CH3Cl studied by fast electron scattering
TL;DR: In this paper, the generalized oscillator strengths of the valence-shell excitations of CH3Cl have been determined at an incident electron energy of 1500 eV and an energy resolution of about 70 meV.
Journal ArticleDOI
Absolute differential cross sections for elastic electron scattering from small biomolecules
TL;DR: In this article, the results of an experimental investigation of electrons colliding with a set of biomolecules that are assumed to be analogues of the building blocks of DNA (furan, 3- hydroxytetrahydrofuran and pyrimidine) and proteins (formamide, N-methylformamide) are presented and compared for these different targets.
Journal ArticleDOI
Cross sections for valence-shell excitations of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant="normal">O</mml:mi></mml:mrow></mml:math> in the 9.85–12.15-eV energy-loss range studied by high-energy inelastic electron scattering
TL;DR: Xu et al. as mentioned in this paper proposed a simplified theoretical model to calculate the generalized oscillator strength of the two excitations at large momentum transfer within the second Born approximation, but the differences still exist.
References
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Absolute elastic differential electron scattering cross sections for He - A proposed calibration standard from 5 to 200 eV
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