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Journal of Chemical Physics / Volume 49 / Issue 10

J. Chem. Phys. 49, 4624 (1968); http://dx.doi.org/10.1063/1.1669922 (9 pages)

Hydrogen Ions in the Positive Column of a Hydrogen Glow Discharge

Mikiya Yamane

Central Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo, Japan

(Received 28 June 1968)

A mass‐spectrometric technique has been applied to the investigation of the positive column of a hydrogen glow discharge. Ions emerging out of the tube are found to be composed of major components of H+ and H3+ ions and minor component of H2+ ion over a range of E / p (the ratio of electric field strength to pressure) from about 30 to 100 V/cm⋅mm Hg and in a pressure range from 0.2–1.6 mm Hg. The relative density of H+ ions decreases monotonically with increasing pressure from 57% at p  =  0.2mmHg(E / p ≑ 100) to 36% at p  =  1.6mmHg(E / p ≑ 30), while that of H3+ ions increases from 38% at p  =  0.2mmHg(E / p ≑ 100) to 62% at p  =  1.6mmHg(E / p ≑ 30). The H2+ ion density decreases with increasing pressure or with decreasing E / p and is less than 10% of the total ion over the pressure range investigated. It is then found possible to obtain collision frequencies of the reactions H2++H2→H3++H and H2++H2→H++H+H2 as a function of E / p, assuming that these collision processes predominate in the plasma.

© 1968 American Institute of Physics

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1669922

PUBLICATION DATA

ISSN

0021-9606 (print)  
1089-7690 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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