Study by a Monte Carlo simulation of the influence of a background gas on the expansion dynamics of a laser-induced plasma plume

1999 ◽  
Vol 69 (1) ◽  
pp. 45-50 ◽  
Author(s):  
F. Garrelie ◽  
C. Champeaux ◽  
A. Catherinot
1998 ◽  
Author(s):  
Florence Garrelie ◽  
J. Aubreton ◽  
Corinne Champeaux ◽  
Alain Catherinot

1995 ◽  
Vol 397 ◽  
Author(s):  
H.C. Le ◽  
D. Zeitoun ◽  
Y. Burtschell ◽  
W. Marine ◽  
M. Sentís ◽  
...  

ABSTRACTAn axisymmetric two-dimensional modeling of plasma expansion in background gas is carried out to provide a better understanding of pulsed laser deposition (PLD) processes. This model takes into account the plasma plume dynamics just after the laser ablation pulse. It is shown that hydrodynamic behaviour and thermal relaxation of the plasma are strongly dependent on the nature and the pressure of background gas. In good agreement with experimental results backward movement of particles is clearly identified at a late expansion stage (≥ 2 μs).


2006 ◽  
Vol 20 (10) ◽  
pp. 1233-1242 ◽  
Author(s):  
A. SETTAOUTI ◽  
L. SETTAOUTI

The electron transport of air in a uniform electric field is investigated by a Monte–Carlo simulation. The simulation results obtained are compared with the available data in the literature. The result of Monte–Carlo simulation shows that electron molecule collision cross sections adopted in the simulation result in good agreement with the experimental values over the range of E/N investigated (E is the electric field and N is the gas number density of background gas molecules).


Author(s):  
A. Settaouti

<span>The electron swarm parameters in gases are necessary for the simulations of plasma processes. The sulfur hexafluoride (SF6) has enormous applications suitability, because of its excellent dielectric properties, it is a gas used extensively as an insulating gas in various electric devices. Consequently, we must dedicate a significant attention to studying the physical properties of this gas. An investigation has brought into effect on the electron swarms parameters in SF6 gas in time varying electric fields using a Monte Carlo simulation. Swarm parameters as a function of instantaneous E/N (E is the electric field and N the gas number density of background gas molecules) for different dE/dt are determined.</span>


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