Topics in classical kinetic transport theory with applications to the sputtering and sputter-induced mass fractionation of solid surfaces and planetary atmospheres

Details Topics in classical kinetic transport theory with applications to the sputtering and sputter-induced mass fractionation of solid surfaces and planetary atmospheres Topics in classical kinetic transport theory with applications to the sputtering and sputter-induced mass fractionation of solid surfaces and planetary atmospheres

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phdt........27w&link_type=abstract

Ph.D. Thesis Yale Univ., New Haven, CT.

Statistics

Applications

Applications Of Mathematics, Energy Transfer, Erosion, Particle Collisions, Planetary Atmospheres, Sputtering, Surface Reactions, Transport Theory, Boltzmann Transport Equation, Emission, Ion Sources, Mars Atmosphere, Momentum Transfer, Solar Wind, Spatial Distribution, Uranium, Venus Atmosphere

Scientific paper

The effect of the spatial correlations of particles at high densities on the collisional transfer of momentum in a hard sphere gas is considered. The mutual shielding of nearest neighbors is found to enhance head-on encounters, producing a collisional chaining effect. The problem of nonstoichimetric sputter-erosion in multicomponent media is addressed. The domination of the emerging flux by those atoms which couple more efficiently, in terms of collisional energy transfer, to the bulk of the medium is proposed. The erosion of gravitationally bound gas by sputtering is considered. In this context, the exobase of an energetic ion flux, e.g., the solar wind is discussed. Cascade-type sputtering in the exobase region and the direct ejection of primary recoils from the upper exposphere are considered. Preferential sputtering of planetary atmospheres is considered.

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