Three-Dimensional Striations of a Glow Discharge

Новопашин, С. А.; Radchenko, V. V.; Sakhapov, S. Z.

doi:10.1109/tps.2008.923902

Cited by 16 publications

(11 citation statements)

References 5 publications

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“…H2 + e - H2 + + 2e -(3) H2(v=0) + e - H2(v=1) + e -(4) H2(v) + e - H2(v+1) + e - (5) H2(v) + e - H + H -(6) H2 + + e - 2H 7H -+ H  H2 + e -(8) H -+ H2 +  H2 + H…”

Section: B Hydrogen Plasma Chemistry and The Double Layersunclassified

Study of striations in a spherically symmetric hydrogen discharge

Morgan

Childs²

2015

Plasma Sources Sci. Technol.

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Experiments on a high power spherically symmetric positive corona discharge in molecular hydrogen are reported upon. These are collisional plasmas in the H2 pressure range of about 0.75 Torr to 3 Torr. Applied voltages ranged up to 600 V on the anode with currents ranging up to 3 A. As in prior published experiments going back to 1997 we observed spherically symmetric striations or double layers. Others have observed such striations in O2, CO2, and mixtures of N2 and acetone or methanol, or benzene. Like H2 all these gases, except N2 itself, readily dissociate and form negative ions by dissociative attachment with electrons. We propose that the striations are instabilities arising from copious formation of negative ions that modify the radial space charge and electric field distributions in such high aspect ratio spherical discharges.

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“…H2 + e - H2 + + 2e -(3) H2(v=0) + e - H2(v=1) + e -(4) H2(v) + e - H2(v+1) + e - (5) H2(v) + e - H + H -(6) H2 + + e - 2H 7H -+ H  H2 + e -(8) H -+ H2 +  H2 + H…”

Section: B Hydrogen Plasma Chemistry and The Double Layersunclassified

Study of striations in a spherically symmetric hydrogen discharge

Morgan

Childs²

2015

Plasma Sources Sci. Technol.

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“…The formation of alternating dark and bright regions (striations) in the positive column of a glow discharge is a universal property of discharges in tubes [1]. This phenomenon is observed in atomic and molecular gases.…”

Section: Introductionmentioning

confidence: 99%

Striations in an ethyl alcohol glow discharge

Reyes

Gómez

Torres

et al. 2015

J. Phys.: Conf. Ser.

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“…To monitor the temperature and the process of the plasma processing apparatus, transparent window glass has been placed in the apparatus and quartz has been applied commercially for its high transparency and strong chemical durability [6][7][8]. However, quartz is very vulnerable to fluorine plasma, because it mainly consists of SiO 2 , and Si atoms can be very easily vaporized by the fluorine plasma [9].…”

Section: Introductionmentioning

confidence: 99%