Accession Number : AD0674289

Title :   ON THE BEHAVIOUR OF A MOLECULAR BEAM SCATTERED BY A SOLID SURFACE: THEORETICAL STUDY FOR NORMAL INCIDENCE.

Descriptive Note : Technical note,

Corporate Author : POLITECNICO DI TORINO (ITALY) ISTITUTO DI MECCANICA APPLICATA

Personal Author(s) : Nocilla,Silvio ; Piat,M. Grazia Chiado

Report Date : SEP 1967

Pagination or Media Count : 21

Abstract : The paper deals with the problem of the scattering of a molecular beam normally incident on a solid surface. By means of a suitable interaction model which takes into account the thermal motion of the surface atoms and the surface roughness at molecular scale 'the velocity distribution function of the free-molecule surface source' formed by the re-emitted molecules is determined. Successively the corresponding spatial distribution functions of the number of molecules, of their momentum and of their energy are calculated. (Author)

Descriptors :   (*MOLECULAR BEAMS, SCATTERING), SOLIDS, SURFACE PROPERTIES, SECONDARY EMISSION, DISTRIBUTION FUNCTIONS, RAREFIED GAS DYNAMICS, ITALY

Subject Categories : Aerodynamics
      Physical Chemistry
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE