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  • 1
    Electronic Resource
    Electronic Resource
    Production of N, H, and NH active species in N2-H2 dc flowing discharges (1995)
    Springer
    Plasma chemistry and plasma processing 15 (1995), S. 721-731 
    Details
    ISSN: 1572-8986
    Keywords: Laser-induced fluorescence ; flowing dc discharge ; N2-H2 mixture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract Densities of N, H, and NH active species have been detected by laser-induced fluorescence (LIF) in N2-xH2 dc flowing discharges. A peak value of N atom densities far x = 0.2–0.5% and a plateau value of H atom densities between x = 1% and 90% in post-discharge conditions (Δ∼0.05 sec, p = 2 torr) has been found. Comparison between LIF measurements of N atoms and the trend of the N2(B, v = II) population shows that the emission from this state can be used for monitoring N atoms. The NH radical has only been detected inside the discharge region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01447069
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    CN chemiluminescence in N2 + CH4 Flowing afterglow at low temperatures (1994)
    Springer
    Plasma chemistry and plasma processing 14 (1994), S. 197-208 
    Details
    ISSN: 1572-8986
    Keywords: Nitrogen afterglow ; CN chemiluminescence ; recombination ; hydrocarbon trace detection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract The spectra of flowing microwave post-discharge excited in N2 and N2 + CH4(N2 + C2H2) gas mixtures have been studied at low temperature (77 K). The molecular spectra of CN emitted by the collision-induced N + C and N + CH chemiluminescent reactions in the low-temperature afterglow system have been thoroughly investigated. The intensity of different CN (B2Σ+-X2Σ+) vibrational bands is very sensitive to low hydrocarbon concentration in nitrogen used as the working gas. Detection of hydrocarbon species has been demonstrated from concentrations of CH4 and C2H2 in N2 greater than 1010 molecules · cm−3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01447078
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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