Spatial distribution of dynamic mechanical stresses in ionic crystals under the action of a pulsed electron beam

Autor: S. A. Stepanov, V. M. Tolmachev, E. P. Chinkov, V. F. Shtan’ko
Rok vydání: 2012
Předmět:
Zdroj: Technical Physics. 57:225-229
ISSN: 1090-6525
1063-7842
DOI: 10.1134/s1063784212020247
Popis: We report on the results of experimental and theoretical investigation of the shape of an acoustic pulse generated in alkali-halide crystals by a pulsed electron beam with a maximal electron energy of 0.28 MeV and an energy density of 0.10–0.65 J/cm2. It is found that the shape of the acoustic pulse for the given beam parameters substantially differs from the absorbed energy density profile. The formation of the fine structure of the acoustic pulse is associated with local release of energy due to the evolution of multichannel electrical breakdown.
Databáze: OpenAIRE