Step photoionization as a mechanism responsible for the Raether paradox

Autor:	I A Kossyi, V P Silakov
Rok vydání:	2005
Předmět:	Chemistry Ionization Excited state Molecule Photoionization Plasma Radiation Atomic physics Condensed Matter Physics Mechanism (sociology) Electric discharge in gases
Zdroj:	Plasma Sources Science and Technology. 14:594-598
ISSN:	1361-6595 0963-0252
Popis:	An attempt is made to explain the phenomenon known as a 'Raether paradox' which consists of the abnormally deep penetration of ionization-causing radiation from a localized gas discharge into the surrounding high-pressure gas. Based on a theory worked out (by the example of the interaction of equilibrium radiation with molecular nitrogen), it is shown that a model accounting for the step ionization of metastables offers a plausible explanation of the deep-penetration effect. The model implies that the gas molecules (or atoms) can exist in excited electronic states that are stable against different de-excitation processes (for N2 this state is ). The long-lived level can be populated primarily through upper levels that are more efficiently excited by radiation in deeper gas layers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a9803d76068a0ed11cdccd5a78fd7617 https://doi.org/10.1088/0963-0252/14/3/024 Zobrazit plný text záznamu