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Molecular Beam Studies of Hyperthermal Atomic Oxygen and Argon Interactions with Polymer Surfaces and Gas-phase Molecules

Amy Leigh Brunsvold

出版	Montana State University--Bozeman, 2007
URL	http://books.google.com.hk/books?id=LasKtwAACAAJ&hl=&source=gbs_api

註釋

Experiments on the dynamics of gas-phase collisions at hyperthermal collision energies found that inelastic collisions may transfer large amounts of energy into internal degrees of freedom. The scattering dynamics of the reactive 16OC product from the 16O(3P) + C18O - 16OC + 18O reaction were quite unexpected, with 16OC predominantly forward scattered. Experiments on the reactions of O(3P) with H2O demonstrated the occurrence of a previously unobserved reaction pathway, O(3P) + H2O - HO2 + H, with a barrier determined to be ~2.6 eV. These studies of hyperthermal processes with molecular beam techniques have enabled us to identify a promising new material and to understand the detailed collision dynamics in model gas-surface and gasphase systems. In each case, the experiments have revealed new chemical or energy transfer processes that were not considered earlier. These previously unknown processes reveal trends in hyperthermal collisions that will undoubtedly be critical to the planning and design of missions that put space vehicles in contact with the outer reaches of the Earth's atmosphere.