Article ID Journal Published Year Pages File Type
1567503 Journal of Nuclear Materials 2009 4 Pages PDF
Abstract

We present state-of-the-art molecular dynamics (MD) simulations of high-density plasma-bombardment of carbon, mimicking plasma–wall interactions at the fusion reactor first wall. Bare and hydrogenated amorphous carbon surfaces with temperatures in the range of 300–800 K are bombarded by a distribution of neutral hydrogen molecules representing well-defined center-of-mass and rovibrational temperatures. The MD simulations are benchmarked against experiments in which a heated carbon surface is irradiated with hydrogen molecules from a plasma source. Comparisons between simulations and experiment are presented for the rovibrational distributions upon reflection and the rotational and vibrational accommodation coefficients.

Related Topics
Physical Sciences and Engineering Energy Nuclear Energy and Engineering
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