A Spectrographic Study of the Nitrogen Afterglow PDF Download
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Author: Alfred Clark
Publisher:
ISBN:
Category : Nitrogen
Languages : en
Pages : 6
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Author: Alfred Clark
Publisher:
ISBN:
Category : Nitrogen
Languages : en
Pages : 6
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Author: Georges Déjardin
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Category :
Languages : en
Pages : 0
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Author: Gerald Norman Hays
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ISBN:
Category :
Languages : en
Pages : 200
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Author: Richard H. Bishop
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Category : Electric discharges through gases
Languages : en
Pages : 120
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Author: Roger Edward Lund
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Category : Nitrogen
Languages : en
Pages : 362
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The temporal behavior of the N(+), N2(+), N3(+) and N4(+) ions in decaying nitrogen plasmas as well as that of the afterglow light intensity was studied in the pressure range of about 0.1 Torr to 1.7 Torr. The plasma container was a glass cylinder covered by a molybdenum film. An electric quadrupole mass spectrometer was used for the ion density studies while a light spectrometer allowed a determination of the spectral distribution of the afterglow light. The analysis of the light intensity decay curves resulted in a method of measuring the surface catalytic efficiency for the recombination of nitrogen atoms at the plasma boundary. An analysis of the N2(+) density decay curves at low pressures revealed that these ions are produced in the afterglow by collisions between metastable molecules N2(x) and N2(y). These metastable molecules are (1) very ineffectively destroyed at the plasma boundary, (b) produced in the afterglow period by the atomic recombination process and (c) responsible for part of the afterglow light emission. The value of the electron temperature, determined through consideration of the losses of the N(+) ions, varied from 1600K to 4500K in the pressure range studied. Evidence was obtained for afterglow electron heating by ionizing collisions between metastable molecules and by superelastic collisions between electrons and vibrationally excited ground state molecules. (Author).
Author:
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Category :
Languages : en
Pages : 736
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Author: K. C. Stotz
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Category : Afterglow (Physics)
Languages : en
Pages : 112
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Author: Allan René de Monchy
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Category :
Languages : nl
Pages : 155
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Author: Allan René de Monchy
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ISBN:
Category : Ionization
Languages : en
Pages : 155
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Author: National Academy of Sciences (U.S.)
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ISBN:
Category : Electronic journals
Languages : en
Pages : 568
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The Proceedings of the National Academy of Sciences (PNAS) publishes research reports, commentaries, reviews, colloquium papers, and actions of the Academy. PNAS is a multidisciplinary journal that covers the biological, physical, and social sciences.
