Simulation and experimental validation of atom effusion characteristics for resonance ionization laser ion source geometries
Year: 2026
Type: article
Abstract: A Monte-Carlo-type simulation model has been developed to describe the effusion of atoms from hot cavity tubes for application to high-purity laser resonance ionization ion sources. The model is validated by comparison with theoretical descriptions of low-pressure particle transfer mechanisms and experimental data obtained by probing the spatial evolution of the atom density downstream for different atom source geometries with laser ionization. The numeric studies, in agreement with the experimental validation, quantify possible efficiency improvements in the order of 30% for high-purity resonance ionization laser ion sources, and highlight the significance of closest distance between atom source and active ionization region. The developed simulation model is a stepping stone for further investigations into efficiency, experimental resolution for laser spectroscopy applications, and more sophisticated geometries.
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,810
Funders: Government of the United Kingdom, UK Research and Innovation, Royal Society, European Commission, Bundesministerium für Bildung und Forschung, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, Engineering and Physical Sciences Research Council, HORIZON EUROPE Marie Sklodowska-Curie Actions
Awards: Intuitive decision making and bias: Examination of their role in the initial mental-health intake with ethnically and racially diverse populations, G1040972846, G3349870279, G3523778273, G4467158980, Verbundprojekt 05P2021 (ErUM-FSP T07) - Aufbau von NUSTAR bei FAIR: Entwicklung von Methoden zur hochauflösenden Laserspektroskopie, Laser Ionization and Spectroscopy of Actinide elements
OpenAlex ID: W7118396880