Accession Number : AD0484615

Title :   EXPERIMENTAL STUDY OF KINETIC SECONDARY ELECTRON EMISSION.

Descriptive Note : Summary technical rept. 1 Aug 63-31 Oct 65,

Corporate Author : PARIS-11 UNIV ORSAY (FRANCE)

Personal Author(s) : Castaing, R. ; Jumeau, D.

Report Date : MAY 1966

Pagination or Media Count : 52

Abstract : The kinetic secondary electron emission of a single crystal of aluminum bombarded with Al(+) ions has been measured as a function of the orientation of the beam with respect to the crystal lattice, the energy of the ions, and the temperature of the target. The Al(+) ion beam is purified by magnetic filtering; its current density, of the order of 1 microA/sq mm, is high enough to maintain a clean target surface during the course of the bombardment. Teh results are interpreted in terms of the opacity of the crystal for the impinging ions. The influence of the overlapping of atoms and the validity of the hard sphere model is discussed. (Author)

Descriptors :   (*SECONDARY EMISSION, ELECTRONS), ALUMINUM, SINGLE CRYSTALS, ION BOMBARDMENT, CRYSTAL LATTICES, ION SOURCES, ION BEAMS, SPHERES, KINETIC ENERGY, WORK FUNCTIONS, IONIZATION CHAMBERS, AZIMUTH, IONIZATION POTENTIALS.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE