Energy, angle, and temperature dependencies of the sticking of D atoms on Li surfaces

P. S. Krstic, S. Abe, E. Schiltz-Rouse, E. T. Ostrowski, B. E. Koel

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Detailed experimental and computational information on the response of lithium surfaces to irradiation by slow hydrogenic particles (ions, atoms, molecules) is sparse and mainly speculative. In this work, we present a computational study of the reflection and retention of deuterium (D) atoms at crystalline and amorphous lithium surfaces at 300 and 500 K, where the D atoms have an impact energy in the range of 0.025-5 eV and incident angles of 0° (perpendicular incidence) or 85° (near-grazing incidence). Classical molecular dynamics simulations are performed with the reactive bond-order force field (ReaxFF) potentials. This study provides quantitative information on the deuterium sticking probability and recycling coefficient for lithium surfaces. Our results support the ongoing work at the Lithium Tokamak eXperiment-β fusion experiment as well as relevant experiments in the laboratory setting.

Original languageEnglish (US)
Article number243304
JournalJournal of Applied Physics
Issue number24
StatePublished - Jun 28 2022

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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