10 research outputs found
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Coulomb Field Effect on Plasma Focusing and Wake Field Acceleration
It is shown that the fields generated by relativistic electron (positron) bunches moving in overdense cold plasma have two components -- wake and Coulomb. The existence of the Coulomb component is caused by the absence of the Debay screening of the charge moving in plasma with the velocity greater than the thermal velocity of the plasma electrons. It is shown that at some conditions the contribution of the Coulomb component to focusing and self-focusing of the electron (positron) bunches, and wake field generation could be essential. This conclusion is valid for different descriptions of cold plasma-relativistic electron bunch system
Excitation Of Nonlinear Wake Waves In Under Dense And Over dense Plasmas by A Relativistic Electron Bunch
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Investigation of Focusing of Relativistic Electron and Positron Bunches Moving in Cold Plasma. Final Report
This document is the final report on a project to study focusing effects of relativistic beams of electrons and positrons interacting with a cold plasma. The authors consider three different models for the overdense cold plasma - electron bunch interaction. They look at coulomb effects, wakefield effects, bunch parameters, and the effects of trains of pulses on focusing properties