Influence of gas heating on high pressure dc microdischargeI–Vcharacteristics

Autor:	Demetre J. Economou, Sergey G. Belostotskiy, Vincent M. Donnelly
Rok vydání:	2008
Předmět:	Scaling law Chemistry chemistry.chemical_element Thermodynamics Gas heating Condensed Matter Physics Cathode law.invention law High pressure Torr Atomic physics Layer (electronics) Helium
Zdroj:	Plasma Sources Science and Technology. 17:045018
ISSN:	1361-6595 0963-0252
DOI:	10.1088/0963-0252/17/4/045018
Popis:	Experimental I?V characteristics of dc microdischarges in helium at different operating pressures (p = 300?800?Torr) reveal that the classical scaling law of the cathode layer (sheath) does not apply. It is shown that a modified semi-analytical model of the cathode layer that accounts for neutral gas heating is able to reproduce the trends of the experimental I?V characteristics. The model can also be used to quantify the influence of gas heating on microdischarge characteristics and to estimate conditions for stable operation of microdischarges.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b12d5a6c4028120f0ca69e6b86e3c480 https://doi.org/10.1088/0963-0252/17/4/045018 Zobrazit plný text záznamu