Work

Differential ionization cross sections of ethanol by electron impact: Experiment and theoretical analysis

Year: 2025

Type: article

Abstract: Doubly differential ionization cross sections (DDCSs) of ethanol were measured for incident electron energies ranging from 60 eV to 1 keV, over an angular range of 30 ∘ – 135 ∘ . The energies of the secondary electrons spanned from 4 eV up to approximately half of the primary electron energy. The experimental results were compared with calculations based on the distorted-wave Born approximation, including postcollision interaction between the two outgoing electrons. Overall, the experimental and theoretical data show reasonably good agreement within the experimental uncertainties. Singly differential ionization cross sections (SDCSs) were derived by integrating the DDCSs over the emission angles. These SDCSs are well reproduced by the generalized binary-encounter Bethe (GBEB) model. Total ionization cross sections (TICSs), obtained by integrating the SDCSs over the secondary electron energy, also show good agreement with the predictions of the GBEB model.

Source: Physical Review A

DOI: 10.1103/cslk-f5l2

Authors: M. Dinger, W. Y. Baek

Institutions: Physikalisch-Technische Bundesanstalt, Federal Institute For Materials Research and Testing, Heidelberg University

Language: English

Topic: Atomic and Molecular Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,675

Funder: European Partnership on Metrology