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Ludwig, G.O.; Ferreira, J.L.; Montes, A.
Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil)1987
Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil)1987
AbstractAbstract
[en] Small amplitudes steady-state ion-acoustic double layers are observed to form in a plasma transversed by a beam of cold electrons. The importance of turbulence in maintaining the double layer is demonstrated. The measured wave spectrum is in approximate agreement with models deriveted from renornalized turbulence theory. The general features of the double layer are compared with results from particle simulation studies. (author)
[pt]
Observam-se camadas duplas acustico-ionicas estacionarias de pequenas amplitudes para formar um plasma transverso por um feixe de eletrons frios. Mostra-se a importancia da turbulencia na manutencao da camada dupla. O espectro de onda medido esta aproximadamente de acordo com modelos deduzidos da teoria da turbulencia renormalizada. As caracteristicas gerais da camada dupla sao comparadas com resultados obtidos de estudos de simulacao da particula. (M.C.K.)Primary Subject
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Aug 1987; 12 p
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