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2014 | 125 | 2 | 442-444
Article title

Double Differential Cross-Section Measurements for Methane Molecule at 350 eV

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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.
Physical description
  • Afyon Kocatepe University, Department of Physics, e -COL Laboratory, Afyon, Turkey
  • Mehmet Akif Ersoy University, Department of Physics, Burdur, Turkey
  • Afyon Kocatepe University, Department of Physics, e -COL Laboratory, Afyon, Turkey
  • Afyon Kocatepe University, Department of Physics, e -COL Laboratory, Afyon, Turkey
  • Afyon Kocatepe University, Department of Physics, e -COL Laboratory, Afyon, Turkey
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