The paper is devoted to the Thomson scattering (TS) diagnostics recently
developed for the Globus-M2 spherical tokamak and prototyping the ITER divertor
TS diagnostics. The distinctive features of the system are the use of
spectrometers, acquisition system and lasers that meet the base requirements
for ITER TS diagnostics. The paper describes the diagnostic system that allows
precise measurements of TS signals, as well as the results of the first
measurements of electron temperature and density in both central region of the
plasma column and scrape-off layer. The system provides measurements of
electron temperature Teβ in the range of 5 eV to 5 keV and density neβ
in the range of 5β 1017Γ·3.25β 1020mβ3. The use of
two ITER-grade probing lasers of different wavelengths (Nd:YAG 1064.5 nm and
Nd:YLF 1047.3 nm) allows reliable measurement of Teβ in multi-colour mode,
i.e., assuming that spectral calibration is unknown