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Автор M K Srivastava
Автор S V Lawande
Автор B K Sinha
Дата выпуска 1990-06-01
dc.description Hydrodynamic equations for the free expansion of a quasineutral plasma with two-electron temperatures are solved using the self-similarity method. The nature of the solutions over a wide range of tau , the temperature ratio and rho <sub>0</sub>, the initial density ratio of the hot to cold electrons are discussed. For tau < tau *=5+ square root 24 (a threshold value), the ion current profile shows a double peak structure which can be measured experimentally. Subsequent comparison of this with the theoretical formulation is proposed for evaluating the temperatures and initial densities of the electrons. For tau > tau *, the solutions are discontinuous with respect to the self-similarity variable xi signifying the onset of a rarefaction shock (RS). The RS solution predicts the vanishing of ion current in a certain range of ion velocities. For rho <sub>0</sub>> rho * (a critical value) the RS emerges in the ambient plasma itself. Based on these signatures of the shock, a general diagnostic technique is proposed for a laser-produced two-temperature plasma.
Формат application.pdf
Издатель Institute of Physics Publishing
Название Rarefaction shocks and diagnostics of a two-temperature plasma
Тип paper
DOI 10.1088/0741-3335/32/5/005
Electronic ISSN 1361-6587
Print ISSN 0741-3335
Журнал Plasma Physics and Controlled Fusion
Том 32
Первая страница 359
Последняя страница 376
Аффилиация M K Srivastava; Bhabha Atomic Res. Centre, Bombay, India
Аффилиация S V Lawande; Bhabha Atomic Res. Centre, Bombay, India
Аффилиация B K Sinha; Bhabha Atomic Res. Centre, Bombay, India
Выпуск 5

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