Electron impact single and double ionization and dissociation: revisiting CF<sub>4</sub> and CHF<sub>3</sub> with an improved experimental method
The absolute total and partial ionization cross sections resulting from electron collisions with fluorinated molecules CF<sub>4</sub> and CHF<sub>3</sub> were obtained by recoil-ion momentum spectroscopy with full acceptance for energetic ionic fragments. For absolute normalization the relative-flow technique was applied. The cross sections for single and double ionization as well as for dissociation were measured for electron energies from 20 eV to 1 keV. The data are compared with previous experiments and model calculations. The dissociation channel specific differences between CF<sub>4</sub> and CHF<sub>3</sub> are discussed. The present data are relevant for the evaluation of the electron interaction on these potent greenhouse gases with a high global warming potential in the Earth biosphere and in plasma and other industrial applications.
Authors
- Alexander Dorn (ORCID: https://orcid.org/0000-0002-8024-224X)
- Deepthy Maria Mootheril (ORCID: https://orcid.org/0000-0002-2949-2286)
- Mevlüt Doğan (ORCID: https://orcid.org/0000-0003-1730-0715)
- Thomas Pfeifer (ORCID: https://orcid.org/0000-0002-5312-3747)
- W. Wolff
Institutions
- Universidade Federal do Rio de Janeiro (BR)
- Max Planck Institute for Nuclear Physics (DE)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cp00746a
- Citations
- 2
- Primary Topic
- Atomic and Molecular Physics
- Type
- article
- Field-Weighted Citation Impact
- 2.49