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Wyszukujesz frazę "Özer, Z." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Secondary Electron Distribution of Atmospheric Nitrogen Molecule by 350 eV Electron Impact
Autorzy:
Ozer, Z.
Ulu, M.
Dogan, M.
Powiązania:
https://bibliotekanauki.pl/articles/1398662.pdf
Data publikacji:
2016-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.80.Gs
Opis:
Electron collisions with nitrogen molecules have an important role for example in ionospheric and auroral phenomena in the upper atmosphere of the Earth. These processes are important in electrical discharges involving atmospheric gases. Due to the key features electron collisions with N₂ have been under particular interest and extensively studied for last decades. Cross-section data is extremely useful in understanding the systematic of the ionization process. Since the earliest cross-section measurements of N₂, there have been a great number of improvements and new developments on theoretical and experimental methods. A crossed-beam apparatus so called electron spectrometer that has an effusive gas source and electron gun is used to obtain the cross-sections. Scattered and ejected electrons are analyzed by hemispherical electron analyzer. Here we report recent measurements of double differential cross-section for N₂ as a function of electron angle at incident electron energy of 350 eV.
Źródło:
Acta Physica Polonica A; 2016, 129, 1; 20-22
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Double Differential Cross-Section Measurements for Methane Molecule at 350 eV
Autorzy:
Yavuz, M.
Isik, N.
Ozer, Z.
Ulu, M.
Doğan, M.
Powiązania:
https://bibliotekanauki.pl/articles/1194671.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.80.Gs
Opis:
Double differential cross-sections have been measured after ionizing electron collisions with methane at primary energy of 350 eV using a conventional electron spectrometer. An electrostatic analyzer was used to measure angular distributions of secondary electrons with energies between 25 eV and 300 eV. Angles of emission were 25° to 130°. It was found that the outgoing electrons belong to one of the two energetically separated groups, either the fast electrons which are scattered mainly in forward direction or the slow electrons which are distributed isotropically into all angles. For higher ejection energies the maxima shifted towards smaller angles as expected from binary type collision.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 442-444
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Experimental and Theoretical Double Differential Cross Sections of CH₄ at 250 eV Impact Energy
Autorzy:
Isik, N.
Yavuz, M.
Aksoy, E.
Ozer, Z.
Ulu, M.
Sahlaoui, M.
Boumediene, L.
Bouamoud, M.
Dogan, M.
Powiązania:
https://bibliotekanauki.pl/articles/1401296.pdf
Data publikacji:
2015-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
34.80.Gs
Opis:
In this study, experimental and theoretical double differential cross section (DDCS) data for methane-electron interaction mechanism after the impact of a 250 eV electron have been comprehensively determined for a wide energy range of the detected electron, from 50 to 225 eV. The first Born-One Coulomb wave modeling with Gamow factor has been calculated to analyze experimental DDCS results for a correct description of the electron impact ionization of methane molecule. It is found that these theoretical calculations are successful to describe the post-collision interaction effects due to the Coulomb long-range interaction between the outgoing electrons in the final state. A considerable agreement is found between experimental and theoretical results.
Źródło:
Acta Physica Polonica A; 2015, 127, 4; 1112-1114
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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