Calculations of the electron-energy-loss probability in thin uniaxial crystals at oblique incidence

Journal Article · Thu Nov 01 04:00:00 EST 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.20.3605· OSTI ID:5851591

Chen, C H; Silcox, J

The complete differential electron-energy-loss probability is calculated for scattering of a fast electron by a thin uniaxial crystal foil at oblique incidence. Retardation effects are considered in the present calculation. In the long-wavelength limit the local dielectric tensor lim/sub q/..-->..o epsilon-arrow-right (q,..omega..) is expected to give a good description of the response of the electron gas in solids to the fields of the incident electron. Using this dielectric approach, the scattering cross section of both volume and surface excitations are obtained. Plasmon anisotropy and the excitation of both extraordinary and ordinary Cerenkov radiation are discussed. The dispersion relations for both extraordinary and ordinary surface waves are also obtained and studied in detail. As an example, we have calculated the scattering probability distribution function for a 500-A-thick graphite foil under normal incidence of 75-keV electrons.

• Research Organization: School of Applied and Engineering Physics and Materials Science Center, Cornell University, Ithaca, New York 14853
• OSTI ID: 5851591
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 20:9; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANISOTROPY
CARBON
CHARGED-PARTICLE TRANSPORT
CHERENKOV RADIATION
CROSS SECTIONS
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
FERMIONS
FOILS
GRAPHITE
KEV RANGE
KEV RANGE 10-100
LEPTONS
LOSSES
NONMETALS
PLASMONS
QUASI PARTICLES
RADIATION TRANSPORT
RADIATIONS
SCATTERING