Influence of several types of inelastic collision on the electron energy distribution in helium

Postma, A.J.

doi:10.1016/0031-8914(70)90073-x

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…For the noble gases the Z l k ( k 3 2), Ple and P2e rate coefficients have been calculated as a functions of E/nl and ne/nl (Aleksandrov et a1 1980, Nighan 1978, Postma 1970. Hence one may conclude that Xk,2zlk = z12.…”

Section: The Collisional Radiative Modelmentioning

confidence: 99%

Ionisation kinetics in low-temperature plasma of noble gases

Kudrjavtsev

Musienko

Skrebov

1987

J. Phys. D: Appl. Phys.

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The theoretical and experimental study of the ionisation kinetics at the rapid growth of the external electric field has been performed in a low-temperature plasma. The initial electron density ne0 was between 109 and 1011 cm-3, the density of the ground-state atoms n1 was between 1016 and 1019 cm-3 and the E/n1 parameter was within the limits 3-300 Td. The theoretical model of the ionisation kinetics taking into account the most important collisional and radiative processes together with the diffusion phenomena was improved. The electron density growth was found to be of an explosive character. It has been shown that the ionic-molecular processes in a given range of the ne, n1 and E/n1 parameters are not significant for the electron density variation. Approximate analytical expressions were obtained for the ionisation development. Calculation and experiment were compared and showed good agreement.

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Section: The Collisional Radiative Modelmentioning

confidence: 99%

Ionisation kinetics in low-temperature plasma of noble gases

Kudrjavtsev

Musienko

Skrebov

1987

J. Phys. D: Appl. Phys.

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“…Refs. [9][10][11][12][13]): In the glow, the diffusion term of plasma electrons has been taken into account, whereas the term describing the energy gain of electrons in an electric field has been neglected. In the positive column, the opposite usually is the case.…”

Section: The Influence Of Ambipolar Diffusion On Thermal Equilibriummentioning

confidence: 99%

Isotopic effects in the establishment of thermal equilibrium of stationary H2- and D2-glow plasmas

Franck

Elsner²

1973

Z. Physik

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In stationary glow plasmas, thermal equilibrium of the electron gas with the neutral gas is established, if, with increasing gas pressure, the diffusion lifetime of plasma electrons becomes high enough. In Dz-plasmas, thermal equilibrium sets in at higher pressures than in H 2. Equal electron temperatures are measured in H 2-and D2-glows, if the corresponding gas pressures are in the ratio pD2/PI-h= 1.22. This isotopic effect of electron temperature and of thermal equilibrium is compared with calculations of the Boltzmann equation, taking into account the influence of ambipolar diffusion on the electron velocity distribution. There is a good agreement between measurement and theory.

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