Modification of the damping rate of the oscillations of a dust particle levitating in a plasma due to the delayed charging effect.
Dependence of the damping rate of the oscillations of the dust particles levitating in the sheath on the plasma parameters is investigated both theoretically and experimentally. Significant deviations of the damping rate from the values predicted by the Epstein formula are found in the experiment. The delayed charging effect is applied for the theoretical explanation of the experimental results. Qualitative agreement between the theoretical and experimental data is obtained.
Pustylnik
M Y
MY
Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Japan.
Ohno
N
N
Takamura
S
S
Smirnov
R
R