Study of the critical angle of channeling of active metal ions through thin aluminum films
Isakhanov Z. A. 1, Umirzakov B. E. 2, Nasriddinov S. S. 3, Мuhtarov Z. E. 1, Yorkulov R. M. 1
1Institute of Ion-Plasma Technologies, Academy of Sciences of Uzbekistan, Tashkent, Uzbekistan
2Tashkent State Technical University, Tashkent, Uzbekistan
3Mirzo Ulug’bek National University of Uzbekistan, Tashkent, Uzbekistan
Email: za.isakhanov@gmail.com

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The spatial distributions of ions (K+, Na+) passed through thin polycrystalline and single-crystalline Al films with the thickness from 180 to 600 Angstrem and critical channeling angles have been studied. The ion energies have been varied within the range E0=10-30 keV. It has been shown that an increase in the energy of the primary ion beam leads to a decrease in the width of the maxima of the angular distribution, which is associated with a decrease in the critical channeling angle psicr. It has been found that the value psicr does not exceed 4-50 for axial channeling and 9-100 for planar channeling Keywords: critical angle, passage of ions, angular distribution, channeling, spatial distribution.
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