Chemical Sputtering of Fusion Plasma-Facing Carbon Surfaces

Journal Article · Fri Dec 01 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2406029· OSTI ID:20898634

Krstic, P S; Reinhold, C O ^[1]; Stuart, S J ^[2]

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1. Oak Ridge National Laboratory, Physics Division, P.O. Box 2008, Oak Ridge, TN 37831-6372 (United States)
2. Clemson University, Department of Chemistry, Clemson, SC 29634 (United States)

We perform molecular dynamics simulations of the chemical sputtering of deuterated amorphous carbon surfaces irradiated by low energy deuterium atoms and molecules ({<=} 30 eV/D). Particular attention was paid to the proper preparation of the surfaces, as well as to the internal (rovibrational) state of impinging molecules. Sputtered hydrocarbons are analyzed with respect to their mass, kinetic energy and angular distribution. The sputtering yields are in good agreement with recent experimental results.

• OSTI ID: 20898634
• Journal Information: AIP Conference Proceedings, Vol. 876, Issue 1; Conference: 23. summer school and international symposium on the physics of ionized gases, National Park Kopaonik (Serbia), 28 Aug - 1 Sep 2006; Other Information: DOI: 10.1063/1.2406029; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANGULAR DISTRIBUTION
CARBON
COMPUTERIZED SIMULATION
DEUTERIUM
EV RANGE 10-100
FIRST WALL
HYDROCARBONS
KINETIC ENERGY
MOLECULAR DYNAMICS METHOD
PLASMA
PLASMA CONFINEMENT
SPUTTERING