ТЕОРИЯ ДИФФУЗИИ „ЛОК АЛИЗОВАННЫХ“ ЭКСИТО НОВ В ТВЕРДЫХ ТЕЛАХ

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Zum Verlauf der „Reptation“-Erscheinung

Ohne Zusammenfassung     

Der „unechte“ ΔG-Effekt bei Nickel

Ohne Zusammenfassung

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G-

     

Zur Frage der „Exoelektronen“-Emission bei Metallen

Ohne Zusammenfassung

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Bemerkungen zum „Regenbogeneffekt“ bei der Streuung von Atomen

The “rainbow” singularity in the differential scattering cross section for molecular collisions is a good means to get the potential depthε of the scattering potential in question. The connection between the “experimental” parameters (“rainbow”-angle, -width, and impact parameter) and the potential parameters of a given type of potential has to be given in tabular form. In this note such a table is given for the Kihara potential (2). Furthermore, it is shown that under conditions likely to occur in experiments, the usual approximation to the scattering cross section will have a nonnegligible error.     

Untersuchung des „Auroral Afterglow“ und seiner Präparationsstadien

The decay of the continuum of the air afterglow was found to be equal in the whole spectral range used. In the beginning of the afterglow [NO] is not constant. N atoms from the discharge create 0 atoms by reacting with NO and retard the intensity decay. Later [NO] remains constant during the afterglow. The decay curves measured in the nitric oxide, and the Lewis-Rayleigh stage agree with the current theories of recombination of N₂ and NO by three-body collision. If the spectral intensity distribution in the Lewis-Rayleigh afterglow is due to the action of different third bodies, asReinecke suggested, his opinion is to be improved by accepting a two step reaction. The measurements can be interpretated, if the first one is responsible to the rate and the second one to the intensity distribution. No sign could be found for the Cario-Kaplan processes to be more frequent in the neighbourhood of the exciting discharge than that of recombination. On the other hand it could be shown, that the recombination of N atoms is severely hindered by transition into the auroral stage and additional collision processes become effective in the excitation of all transitions of the 1. pos. group.