Review of Advanced Implementation of Doppler Backscattering Method in Globus-M

Doppler backscattering (DBS) is a microwave diagnostics method typically used to study the plasma rotation velocity. Apart from conventional techniques, more advanced forms of DBS implementation were suggested on Globus-M. More specifically variety oscillating processes was performed using DBS. In this review we present detailed description all methods and techniques employed in Globus-M alongside results obtained years up until shutdown tokamak. These include research similar that done other devices into properties such phenomena like geodesic acoustic modes or limit cycle oscillations, along with innovative works regarding detection investigation Alfven eigenmodes filaments first their kind provided important novel results. that, specific aspects application spherical tokamak are discussed. An in-depth look gradual change improvement also presented paper.