Interplay of collisions and temperature on the filamentary structures of a relativistic electron beam in plasmas |
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| Authors: | Naveen Kumar A Karmakar A Pukhov and G Shvets |
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| Institution: | (1) Physics Division, School of Engineering and Physics, The University of the South Pacific, Suva, Fiji;(2) Space Physics Laboratory, Department of Physics, Barkatullah University, Bhopal, 462 026, India |
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| Abstract: | A systematic study on the Weibel instability induced filamentation of a relativistic electron beam is made by including the
effects of collisions and temperature. The stabilization and de-stabilization of the beam filamentation due to beam temperature
and plasma collisions, respectively, is explored through an analytical model and PIC simulations. The de-stabilization of
the beam filamentation is attributed to the collision driven negative energy wave generation in the beam plasma system. |
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