Effects of fast neutral particles in low-pressure gas discharges

Z. Donkó, P. Hartmann, K. Kutasi

Research output: Article

2 Citations (Scopus)

Abstract

The effects of fast neutral (heavy) particles on the characteristics of low-pressure noble gas discharges are reviewed. Complementing experimental observations, numerical simulations are applied to demonstrate the importance of these species in the (i) surface reactions causing cathodic electron emission and (ii) gas-phase reactions leading to the creation of charged particles and to light emission through excitation processes. All these processes are found to be important at high values of the electric field to gas density ratio, E/n, under which conditions positive ions - being the primary species creating fast neutrals in collision processes - acquire high energy in the cathode region.

Original languageEnglish
Article number012008
JournalJournal of Physics: Conference Series
Volume71
Issue number1
DOIs
Publication statusPublished - máj. 1 2007

Fingerprint

neutral particles
gas discharges
gas density
positive ions
electron emission
surface reactions
light emission
rare gases
charged particles
low pressure
cathodes
vapor phases
collisions
electric fields
excitation
simulation
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effects of fast neutral particles in low-pressure gas discharges. / Donkó, Z.; Hartmann, P.; Kutasi, K.

In: Journal of Physics: Conference Series, Vol. 71, No. 1, 012008, 01.05.2007.

Research output: Article

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