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Sputtering of rough surfaces: a 3D simulation study
- Source :
- Physica Scripta
- Publication Year :
- 2017
- Publisher :
- IOP Publishing, 2017.
-
Abstract
- The lifetime of plasma-facing components is critical for future magnetic confinement fusion power plants. A key process limiting the lifetime of the first-wall is sputtering by energetic ions. To provide a consistent modeling of the sputtering process of realistic geometries, the SDTrimSP-code has been extended to enable the processing of analytic as well as measured arbitrary 3D surface morphologies. The code has been applied to study the effect of varying the impact angle of ions on rough surfaces on the sputter yield as well as the influence of the aspect ratio of surface structures on the 2D distribution of the local sputtering yields. Depending on the surface morphologies reductions of the effective sputter yields to less than 25% have been observed in the simulation results.
- Subjects :
- Surface (mathematics)
Materials science
Yield (engineering)
Impact angle
Magnetic confinement fusion
Condensed Matter Physics
3d simulation
01 natural sciences
Molecular physics
Aspect ratio (image)
Atomic and Molecular Physics, and Optics
010305 fluids & plasmas
Ion
Physics::Plasma Physics
Sputtering
0103 physical sciences
010306 general physics
Mathematical Physics
Subjects
Details
- ISSN :
- 14024896 and 00318949
- Database :
- OpenAIRE
- Journal :
- Physica Scripta
- Accession number :
- edsair.doi.dedup.....b966c38d3189744ef25408fb05e1e447