Speaker
Vladimir Vysotskii
(Kiev National Shevchenko Univ, Kiev, Ukraine)
Description
The work considers the mechanism of self-controlled autocollimation of a beam of positive ions during their channeling in crystals, which can lead to a significant reduction in the angular dispersion of the ions beam. The autocollimation process is associated with elastic ion scattering and stepwise transfer of the transverse energy E_\perp of a channeled ion to groups N \approx \Lambda / 2 <d_z> of crystal atoms that are localized in regions \Lambda / 2 = v_z /2 \omega of alternating reflections on each channel wall. This process can significantly compensate and reduce the effect of dechanneling of positive ions and increase the length of dechanneling in planar and axial crystal channels.
Primary author
Vladimir Vysotskii
(Kiev National Shevchenko Univ, Kiev, Ukraine)
Co-authors
Dr
Mykhaylo Vysotskyy
(Taras Shevchenko National University of Kyiv)
Mykola Maksyuta
(Taras Shevchenko National University of Kyiv, Ukraine)
Sultan Dabagov
(Istituto Nazionale di Fisica Nucleare)
