Zur Untersuchung von Teilchenströmen aus Plasmen

Schmidt, Martin; Hinzpeter, G.

doi:10.1002/ctpp.19700100208

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1971

2012

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Cited by 5 publications

References 108 publications

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Über die Wandverluste an ähnlichen positiven Säulen der Neon‐Niederdruck‐Glimmentladung

Schmidt¹

1971

Contrib Plasma Phys

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In positive columns of neon low pressure glow discharges ion wall current densities are measured by sampling the ions through a small hole in the wall of the discharge tube. The results are compared for different discharge conditions and agree with the predictions of the B‐invariant similarity rules given by Rutscher et al. The values of the wall current densities are compared with theoretical wall losses calculated from the charge carrier balance of neon low pressure column in low current region.

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Über die Wandverluste an ähnlichen positiven Säulen der Neon‐Niederdruck‐Glimmentladung

Schmidt¹

1971

Contrib Plasma Phys

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Collisional Relaxation Processes for the n=3 States of Helium. II. Associative Ionization

Wellenstein

Robertson

1972

The Journal of Chemical Physics

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Rate constants for the associative ionization reaction He * + He → He 2 + + e have been measured, where He* represents the n=3 states of helium. By line absorption from the metastable 21S and 23S states, the n=3 states in the positive column of a dc discharge in helium were selectively and periodically modulated. Using phase-sensitive detection, the changes in excited-state populations were determined spectroscopically while the corresponding in-phase variations in the concentration of He 2 + were measured with a quadrupole mass filter. The cross sections for associative ionization in units of 10−16 cm2 were determined to be: σ (3 3 P) = 1.6 ± 0.1, σ (3 1 P) = 3.1 ± 1, σ (3 3D) = 4.5 ± 0.5, and σ (3 1D) = 20 ± 4. σ (3 3S) and σ(31S) were apparently zero.

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Ambipolar Diffusion in a Nonuniorm Plasma Containing Different Positive Ion Components

Wunderer¹

1978

IEEE Trans. Plasma Sci.

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Zur Untersuchung von Teilchenströmen aus Plasmen

Cited by 5 publications

References 108 publications

Über die Wandverluste an ähnlichen positiven Säulen der Neon‐Niederdruck‐Glimmentladung

Über die Wandverluste an ähnlichen positiven Säulen der Neon‐Niederdruck‐Glimmentladung

Collisional Relaxation Processes for the n=3 States of Helium. II. Associative Ionization

Ambipolar Diffusion in a Nonuniorm Plasma Containing Different Positive Ion Components

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