Study of energy transfer during the collision of a molecular stream with a surface

A method of direct study of the energy transfer between a molecular stream and the surface of a solid body is described. The energy loss of particles (Ar, CO₂) colliding with metal surfaces (Cu, Fe, Ta) was measured at various temperatures. The capture of the molecules by these surfaces was observed, and the corresponding adsorption times were measured.The author wishes to thank N. V. Kamyshov for his part in this research.