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Chinese Physics, 2004, Vol. 13(3): 373-378    DOI: 10.1088/1009-1963/13/3/020
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES Prev   Next  

Energy loss of a fast-electron beam due to the excitation of collective oscillation in hot plasma

Ma Jin-Yi (马瑾怡)a, Qiu Xi-Jun (邱锡钧)a, Zhu Zhi-Yuan (朱志远)b
a Department of Physics, Shanghai University, Shanghai 200436, China; b Shanghai Institution of Nuclear Research, Shanghai 201800, China
Abstract  Energy loss due to a fast-electron beam interacting with the hot plasma at a high density is analysed theoretically. By splitting the particle density fluctuations into the individual part due to the random thermal motion of the individual electrons and the collective part due to plasma-wave excitation, we are concerned with the collective interaction of the relativistic plasma electrons resulting from the Coulomb interactions. Consequently, we derive the frequency of the hot plasma and the "Debye length" with the modification of the relativistic effect. And finally we calculate the energy loss of a fast-electron beam due to the excitation of collective oscillation in the hot plasma.
Keywords:  fast-electron beam      excitation of collective oscillation      hot plasma  
Received:  07 March 2003      Revised:  21 August 2003      Accepted manuscript online: 
PACS:  52.40.Mj (Particle beam interactions in plasmas)  
  52.35.-g (Waves, oscillations, and instabilities in plasmas and intense beams)  
  52.27.Ny (Relativistic plasmas)  
Fund: Project supported by the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No. KJCX2-SW-N02).

Cite this article: 

Ma Jin-Yi (马瑾怡), Qiu Xi-Jun (邱锡钧), Zhu Zhi-Yuan (朱志远) Energy loss of a fast-electron beam due to the excitation of collective oscillation in hot plasma 2004 Chinese Physics 13 373

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