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 |