Accession Number : AD0701405

Title :   AN INVESTIGATION OF THE REFLECTION OF SLOW ELECTRONS FROM SURFACES.

Descriptive Note : Final rept. 1 Jun 66-30 Nov 69,

Corporate Author : WESTERN KENTUCKY UNIV BOWLING GREEN

Personal Author(s) : Russell,Marvin W.

Report Date : 30 DEC 1969

Pagination or Media Count : 59

Abstract : Reflection coefficient vs. electron energy measurements have been made for polycrystalline tungsten and tungsten coated stainless steel. A crossed-field trochoidal trajectory method was developed to achieve reliable operation below 1 eV and to accomplish greater versatility in measurement technique. The measurements have been extended from 10 eV down to 0.2 eV. Reflection coefficients increased almost linearly with energy in the 0.2 - 1 eV range. The effects of changes in surface conditions on reflections have been investigated. Values of R ranging from 0.08 to 0.7 were detected. The feasibility of utilizing the trochoidal trajectory method to study ion reflection phenomena is discussed. (Author)

Descriptors :   (*TUNGSTEN, SURFACES), (*ELECTRONS, REFLECTION), STAINLESS STEEL, CRYSTALS, METAL COATINGS, PARTICLE TRAJECTORIES

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE