Kinetics of high pressure beam-produced heavy inert gas plasmas

Bedenkov, N. V.; Romanenko, V. A.; Solodky, S.; Kudryavtsev, A. A.

doi:10.1088/0031-8949/53/4/012

Cited by 5 publications

(7 citation statements)

References 28 publications

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“…We use xenon gas with a chemistry mechanism that was described in detail in [28] and [29]. The model accounts for three effective excited levels of xenon, which contains several actual excited electron states with close energies (Table I).…”

Section: B Plasma-chemical Modelmentioning

confidence: 99%

“…The model accounts for three effective excited levels of xenon, which contains several actual excited electron states with close energies (Table I). Table I presents the bond energies for Xe atoms and molecules [28], [29]. Thus, for a Xe atom, the level Xe corresponds to the ground state 5 p 6 1 S 0 , Xe * combines the 6s states, Xe * * combines the 6s states, and Xe * * * combines the 6 p states [28], [29].…”

Section: B Plasma-chemical Modelmentioning

confidence: 99%

“…In Table II, a list of reactions is presented, which was used in [28] and [29] to simulate discharges in xenon.…”

Section: B Plasma-chemical Modelmentioning

confidence: 99%

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2-D Modeling of Orificed Hollow Cathodes of Stationary Plasma Thrusters SPT-100

Liu

Ning

et al. 2015

IEEE Trans. Plasma Sci.

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In this paper, 2-D extended fluid model for the simulation of orificed hollow cathode (OHC) discharge in xenon flow of SPT-100 thruster was built using Comsol Multiphysics. Self-consistent discharge model is based on fluid description of ions and excited neutral species and uses drift-diffusion approximation for the particle fluxes. Electron transport and rates of electron-induced plasma-chemical reactions are calculated using Boltzmann equation for electron energy distribution function and corresponding collision cross sections. A reasonable set of plasma-chemical processes with electrons, ions, and excited and neutral particles were considered. The model accounts for gas flow and heating. Self-consistent electric field is calculated from the Poisson equation. The model geometry reproduces that of the experimental OHC for stationary plasma thruster SPT-100, which was studied in Harbin Institute of Technology. Simulations were carried out for different operational modes of the OHC. Distributions of key discharge parameters were obtained. A comparison between the simulation results and experimental data was conducted and showed good agreement.

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Section: B Plasma-chemical Modelmentioning

confidence: 99%

Section: B Plasma-chemical Modelmentioning

confidence: 99%

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2-D Modeling of Orificed Hollow Cathodes of Stationary Plasma Thrusters SPT-100

Liu

Ning

et al. 2015

IEEE Trans. Plasma Sci.

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“…Thus, D ef ; ea , and ee are calculated for this value of energy (or temperature) of electrons. 31,32…”

Section: Models With a Nonlocal Ionization Sourcementioning

confidence: 99%

Account of nonlocal ionization by fast electrons in the fluid models of a direct current glow discharge

2012

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“…In this study, we use xenon gas with a chemistry mechanism that is basically the same as in [14]. We used a simplified energy scheme of Xe atoms and molecules as recommended in [15] and connected with unification of closely located levels into one effective level.…”

Section: Description Of the Discharge Modelmentioning

confidence: 99%

Simulation of pulsed dielectric barrier discharge xenon excimer lamp

Bogdanov

Kudryavtsev

Arslanbekov

et al. 2004

J. Phys. D: Appl. Phys.

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Recently, it has been shown that the efficiency of excimer lamps can be drastically increased in a pulsed regime. A one-dimensional simulation of pulsed excimer lamps has been performed by Carman and Mildren (2003 J. Phys. D: Appl. Phys. 36 19) (C&M). However, some computational results of the work of C&M are questionable and need to be revisited. In this paper, a dielectric barrier discharge (DBD) in xenon has been simulated for operating conditions similar to those of C&M to better understand plasma dynamics in a pulsed regime. Our simulation results differ considerably from the computational results of C&M. Although these differences do not affect profoundly the plasma macro parameters measured in the C&M experiments, they offer a better understanding of plasma dynamics in pulsed DBDs and form a solid foundation for computational optimization of excimer lamps. It was found that the dynamics of breakdown and the current pulse depend significantly on the initial densities of species after a previous pulse, and so it is important to accurately simulate the plasma evolution in both the afterglow and active stages. It seems possible to modify the power deposition in the plasma by varying external discharge parameters such as the amplitude and the rise time of the applied voltage, and to modify the plasma composition by changing the pulse repetition rate and plasma decay in the afterglow stage.

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Kinetics of high pressure beam-produced heavy inert gas plasmas

Cited by 5 publications

References 28 publications

2-D Modeling of Orificed Hollow Cathodes of Stationary Plasma Thrusters SPT-100

2-D Modeling of Orificed Hollow Cathodes of Stationary Plasma Thrusters SPT-100

Account of nonlocal ionization by fast electrons in the fluid models of a direct current glow discharge

Simulation of pulsed dielectric barrier discharge xenon excimer lamp

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