magnetic focusing मीनिंग इन हिंदी

Linacs do generally use magnetic focusing, but that is done with addition structures, not the accelerating structures.
For technological applications the divergent beam has to be focused, which is realized by the magnetic field of a coil, the magnetic focusing lens.
Two examples of applications in Atomoscience are efficient isotope separation for medicine and basic research, and magnetic focusing of supersonic beams to create nanoscale structures.
For proper functioning of the electron gun, it is necessary that the beam be perfectly adjusted with respect to the optical axes of the accelerating electrical lens and the magnetic focusing lens.