ELECTRON REFLECTION COEFFICIENT AT ZERO ENERGY I: EXPERIMENTS,
Abstract
The zero energy reflection coefficient of electrons at a freshly evaporated silver surface has been measured to be 7% + or 1%. The coefficient rises linearly with 39% e/V over more than 0.5 eV. Particular care is taken that only those electrons which have actually interacted with the surface are counted; those which have been reflected by the applied field without interaction with the surface are not counted. This is accomplished by (1) use of a total energy spectrometer and (2) simultaneous recording of the energy spectrum and target current. Therefore, the reflection coefficient determined is essentially that for orthogonal incidence. This report is intended as a critical discussion of the experimental method; the measured coefficient is thought to be caused by reflection in the patches, and agrees with the value to be reported in a subsequent paper. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1967
- Accession Number
- AD0652223
Entities
People
- H. Heil
- J. V. Hollweg
Organizations
- HRL Laboratories