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Correlations between Survival Probabilities and Ionization Energies of Slow Ions Colliding with Room-Temperature and Heated Surfaces of Carbon, Tungsten, and Beryllium
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SYSNO ASEP 0334533 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Correlations between Survival Probabilities and Ionization Energies of Slow Ions Colliding with Room-Temperature and Heated Surfaces of Carbon, Tungsten, and Beryllium Title Korelace mezi pravděpodobností přežití a ionizační energií pomalých iontů ve srážkách s povrchy uhlíku, wolframu a berylia za pokojvé teploty a zahřátých Author(s) Herman, Zdeněk (UFCH-W) RID
Žabka, Ján (UFCH-W) RID, ORCID, SAI
Pysanenko, Andriy (UFCH-W) RID, ORCIDSource Title Journal of Physical Chemistry A. - : American Chemical Society - ISSN 1089-5639
Roč. 113, č. 52 (2009), s. 14838-14844Number of pages 7 s. Language eng - English Country US - United States Keywords surface ; carbon ; tungsten ; survival probabilities Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA4040405 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA400400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000273263700084 DOI 10.1021/jp904995p Annotation Survival probabilities, Sa (%), of hydrocarbon ions C1, C2, and C3 and several nonhydrocarbon ions (Ar+, N2+, CO2+) on room-temperature (hydrocarbon-covered) and heated (600 °C) surfaces of carbon (HOPG), tungsten, and beryllium were experimentally determined using the ion−surface scattering method for several incident energies from a few electronvolts up to about 50 eV and for the incident angle of 30° (with respect to the surface). A simple correlation between Sa and the ionization energy (IE) of the incident ions was found in the semilogarithmic plot of Sa versus IE. The plots of the data at 31 eV were linear for all studied surfaces and could be fitted by an empirical equation log Sa = a − b(IE). The values of the parameters a and b were determined for all investigated room-temperature and heated surfaces and can be used to estimate unknown survival probabilities of ions on these surfaces from their ionization energies. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2010
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