Three dimensional filamentary structures of a relativistic electron beam   in Fast Ignition plasmas
  The filamentary structures and associated electromagnetic fields of a relativistic electron beam have been studied by three dimensional particle-in-cell (PIC) simulations in the context of Fast Ignition fusion. The simulations explicitly include collisions in return plasma current and distinctly examine the effects of beam temperature and collisions on the growth of filamentary structures generated. 
Anupam Karmakar, Naveen Kumar, Oleg Polomarov, Gennady Shvets,   Alexander Pukhov