Energy partitioning in collisions of slow polyatomic ions with carbon surfaces

摘要: Abstract Energy transfer in collisions of slow polyatomic ions with carbon surfaces (Tore Supra tile and highly oriented pyrolytic graphite) was investigated over the incident energy range 10–23 eV. Mass spectra translational angular distributions product were used to determine partitioning projectile ion into internal excitation projectile, energy, fraction absorbed by surface. The ethanol molecular as a model ion. For angle 60° (with respect surface normal) peak values respective fractions 6% for 24%–28% 70%–66% Similar found earlier at stainless steel covered hydrocarbons self-assembled monolayer (SAM) C 12 alkane chains. occurrence chemical reaction products (protonated its fragment ions) formed H-atom from material all above mentioned (the surfaces, hydrocarbon layer, SAM) indicated that layer hydrocarbons, too, thus present results provide information interest on tiles films fusion research.