Speaker
Dr
Anton Babaev
(Tomsk Polytechnic University)
Description
The channeled ion interacts with the continuous planar electric
field. This electric field not only defines the trajectory of the
ion but also acts on the electrons of ion. Hence, electronic
energy levels are shifted and are split due to Stark effect. The
influence of Stark effect depends on the position of ion in the
planar channel.
In this work the influence of trajectory-dependent Stark effect on
electronic energy levels is analyzed for relativistic He-like Fe
ions. The calculations for the inhomogeneous electric field of
crystallographic planes are carried out in the first and second
orders of the perturbation theory. The first order is defined by
the gradient of strength of electric field and it is proportional
to relativistic factor. The main contribution to the second order
comes mainly from the second degree of strength and this order is
proportional to the second degree of relativistic factor.
Hence, the second order for relativistic channeled ion having
several electrons can play the significant role in the electronic
states forming. This situation differs from the case of
hydrogen-like ions, where electronic states is defined by
the first order. This fact influences on both the excitation of
channeled ion and radiation from the excited ion.
Primary author
Dr
Anton Babaev
(Tomsk Polytechnic University)
Co-author
Prof.
Yury Pivovarov
(Tomsk Polytechnic University)
