Influence of plasma diffusion losses on dust charge relaxation in discharge afterglow

Journal Article · Sun Sep 07 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2996828· OSTI ID:21251226

Coueedel, L ^[1]; Samarian, A A ^[1]; Mikikian, M; Boufendi, L ^[2]

---

1. School of Physics, University of Sydney, NSW 2006 (Australia)
2. GREMI, CNRS/Universite d'Orleans, 14 rue d'Issoudun, BP6744, 45067 Orleans Cedex 2 (France)

The influence of diffusive losses on residual dust charge in a complex plasma afterglow has been investigated. The dust residual charges were simulated based on a model developed to describe complex plasma decay. The experimental and simulated data show that the transition from ambipolar to free diffusion in the decaying plasma plays a significant role in determining the residual dust particle charges. The presence of positively charged dust particles is explained by a broadening of the charge distribution function in the afterglow plasma.

• OSTI ID: 21251226
• Journal Information: AIP Conference Proceedings, Vol. 1041, Issue 1; Conference: 5. international conference on the physics of dusty plasmas, Ponta Degada, Azores (Portugal), 18-23 May 2008; Other Information: DOI: 10.1063/1.2996828; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AFTERGLOW
CHARGE DISTRIBUTION
COMPUTERIZED SIMULATION
DIFFUSION
DISTRIBUTION FUNCTIONS
DUSTS
FLUCTUATIONS
FOKKER-PLANCK EQUATION
PARTICLES
PLASMA
PLASMA DENSITY
PLASMA SIMULATION
RELAXATION
RF SYSTEMS