Abstract
We study the triple-differential cross section (TDCS) for the electron-impact ionization of the highest occupied molecular orbital of tetrahydrofuran at a projectile energy E0=91eV. The experimental data were measured using a reaction microscope, which covers a large part of the full solid angle for the secondary electron emission with energies ranging from 6 to 15 eV, and projectile scattering angles ranging from -10° to -20°. The experimental TDCSs are internormalized across all measured scattering angles and ejected energies. They are compared with predictions from the multicenter distorted-wave (MCDW) approximation and a modified MCDW-Nee method which includes the post collision interaction (PCI) using the Ward-Macek factor. Additional calculations were obtained using a molecular three-body distorted-wave (M3DW) approach which accounts for PCI in an exact treatment. Generally, the MCDW-Nee and M3DW models show better agreement with experiment than the MCDW calculations. This shows the importance of accounting for PCI for low-energy outgoing electrons in electron-impact ionization processes.
Recommended Citation
E. Wang et al., "Triple-differential Cross Sections for (e,2e) Electron-impact Ionization Dynamics of Tetrahydrofuran at Low Projectile Energy," Physical Review A, vol. 102, no. 6, article no. 062813, American Physical Society, Dec 2020.
The definitive version is available at https://doi.org/10.1103/PhysRevA.102.062813
Department(s)
Physics
Publication Status
Open Access
International Standard Serial Number (ISSN)
2469-9934; 2469-9926
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 American Physical Society, All rights reserved.
Publication Date
16 Dec 2020
Comments
Alexander von Humboldt-Stiftung, Grant RE 2966/3-1