477 research outputs found
Evolution of vacancy pores in bounded particles
In the present work, the behavior of vacancy pore inside of spherical
particle is investigated. On the assumption of quasistationarity of diffusion
fluxes, the nonlinear equation set was obtained analytically, that describes
completely pore behavior inside of spherical particle. Limiting cases of small
and large pores are considered. The comparison of numerical results with
asymptotic behavior of considered limiting cases of small and large pores is
discussed.Comment: 25 pages, 10 figure
Radiation back-reaction in relativistically strong and QED-strong laser fields
The emission from an electron in the field of a relativistically strong laser
pulse is analyzed. At the pulse intensities of \ge 10^{22} W/cm^2 the emission
from counter-propagating electrons is modified by the effects of Quantum
ElectroDynamics (QED), as long as the electron energy is sufficiently high: E
\ge 1 GeV. The radiation force experienced by an electron is for the first time
derived from the QED principles and its applicability range is extended towards
the QED-strong fields.Comment: 4 pages, 4 figure
Emission and its back-reaction accompanying electron motion in relativistically strong and QED-strong pulsed laser fields
The emission from an electron in the field of a relativistically strong laser
pulse is analyzed. At pulse intensities of J > 2 10^22 W/cm2 the emission from
counter-propagating electrons is modified by the effects of Quantum
ElectroDynamics (QED), as long as the electron energy is sufficiently high: E >
1 GeV. The radiation force experienced by an electron is for the first time
derived from the QED principles and its applicability range is extended towards
the QED-strong fields.Comment: 14 pages, 5 figures. Submitted to Phys.Rev.
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