CATHODE LENS WITH ROTATIONAL AND SEXTUPLE FIELD COMPONENTS
Doctor of Physical and Mathematical Sciences, Professor KazNU named after Al-Farabi
Master’s degree KazNU named after Al-Farabi
The paper deals with the problems of correction of certain types of aberrations of focusing electronic lenses and electro-optical assemblies using additional elements containing a sextupole component of the electrostatic potential distribution. Aberration correctors make it possible to significantly improve the technical characteristics of a wide class of analytical instruments and technological installations.
Keywords: electronic lens, focusing, equalization, aberration, sextupole, potential distribution.