Recent Studies of Vibrational Excitation of N2 by Electron Impact PDF Download
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Author: G. J. Schulz Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The vibrational excitation of nitrogen molecules by electron impact was studied by analyzing electrons at an angle of 72 degrees. The vibra tional excitation in N2 is interpreted as a process involving a compound state of the nitrogen molecule. The lifetime of the compound state is comparable to the vibration time, i.e., of the order of 10 to the -14th power sec. (Author).
Author: G. J. Schulz Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The vibrational excitation of nitrogen molecules by electron impact was studied by analyzing electrons at an angle of 72 degrees. The vibra tional excitation in N2 is interpreted as a process involving a compound state of the nitrogen molecule. The lifetime of the compound state is comparable to the vibration time, i.e., of the order of 10 to the -14th power sec. (Author).
Author: Anthony A. Haasz Publisher: Institute for Aerospace Studies, University of Toronto ISBN: Category : Electron beams Languages : en Pages : 0
Book Description
Characteristic emission spectra in the 2000A to 6000A wavelength range, induced by 0.6-3 keV energy electrons, were obtained for molecular nitrogen, molecular oxygen and atomic oxygen. To study the atomic oxygen fluorescence, ground state O atoms were produced in the absence of O2 molecules by the N + NO to N2 + O titration reaction. Absolute excitation cross sections were obtained for some of the prominent spectral features of N2, O2 and O; the emissions were selected on the basis of their applicability for upper atmospheric diagnostics with electron beam fluorescence probes. In parallel with the laboratory investigations of the electron beam induced fluorescence in atmospheric gases, an electron beam fluorescence probe (EBFP) has been developed for rocket flight applications in the 80 to 150 km altitude range. The EBFP is capable of measuring vibrational and rotational temperatures as well as species concentrations in the upper atmosphere. The instrument employs a 2.5 keV, 4 mA electron beam to induce fluorescence in the ambient gas of the atmosphere. (Modified author abstract).
Author: G. J. Schulz
Author: G. J. Schulz
Author: Anthony A. Haasz
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Author: Karlheinz Thom
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