Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Evolution of the density profiles and flows of charged particles during the diffusive decay of an electronegative gas plasma. / Bogdanov, E. A.; Kudryavtsev, A. A.; Tsendin, L. D.
в: Technical Physics, Том 46, № 4, 01.04.2001, стр. 404-410.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Evolution of the density profiles and flows of charged particles during the diffusive decay of an electronegative gas plasma
AU - Bogdanov, E. A.
AU - Kudryavtsev, A. A.
AU - Tsendin, L. D.
PY - 2001/4/1
Y1 - 2001/4/1
N2 - Different scenarios of the spatiotemporal evolution of the parameters of the diffusive decay of a pulsed electronegative gas plasma in the absence of plasma chemical processes are studied. It is shown that non-linear diffusion in a plasma with negative ions occurs in several stages. The rate of electron density decay increases with time and, in the beginning of the second stage, almost all the electrons escape from the discharge volume. On the other hand, the ion density profile is smoothed out due to ion-ion amhipolar diffusion and the flow of negative ions toward the wall is absent in the first stage of decay. In the second stage, the main diffusion mode is first established and then the ion-ion (electronless) plasma decays exponentially with a characteristic time determined by ion-ion ambipolar diffusion.
AB - Different scenarios of the spatiotemporal evolution of the parameters of the diffusive decay of a pulsed electronegative gas plasma in the absence of plasma chemical processes are studied. It is shown that non-linear diffusion in a plasma with negative ions occurs in several stages. The rate of electron density decay increases with time and, in the beginning of the second stage, almost all the electrons escape from the discharge volume. On the other hand, the ion density profile is smoothed out due to ion-ion amhipolar diffusion and the flow of negative ions toward the wall is absent in the first stage of decay. In the second stage, the main diffusion mode is first established and then the ion-ion (electronless) plasma decays exponentially with a characteristic time determined by ion-ion ambipolar diffusion.
UR - http://www.scopus.com/inward/record.url?scp=0035531377&partnerID=8YFLogxK
U2 - 10.1134/1.1365462
DO - 10.1134/1.1365462
M3 - Article
AN - SCOPUS:0035531377
VL - 46
SP - 404
EP - 410
JO - Technical Physics
JF - Technical Physics
SN - 1063-7842
IS - 4
ER -
ID: 42902556