Investigation of the NBI heated plasma on the Globus-M tokamak with the use of Thomson scattering diagnostics

4th International Workshop & Summer School on Plasma Physics 2010

Kurskiev, G.S.^1 ; Tolstyakov, S. Yu.^1 ; Gusev, V.K.^1 ; Kochergin, M.M.^1 ; Khromov, N.A.^1 ; Melnik, A.D.^1 ; Minaev, V.B.^1 ; Mukhin, E.E.^1 ; Patrov, M.I.^1 ; Petrov, Yu. V.^1 ; Sakharov, N.V.^1 ; Semenov, V.V.^1 ; Senichenkov, I. Yu.^2

Ioffe Physico-Technical Institute, RAS, St.-Petersburg, Russia^1

St. Petersburg State Polytechnical University, St.-Petersburg, Russia^2

关键词: Electron transport;    Plasma radius;    Spherical Tokamak;    Thomson scattering diagnostics;    Variable intervals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/516/1/012010/pdf
DOI  :  10.1088/1742-6596/516/1/012010

来源: IOP

【 摘 要 】

Electron temperature and density spatial distribution dynamics on the Globus-M (R =0.36 m, a=0.24 m, B =0.4 T, I= 0.2 MA) spherical tokamak was investigated during the NBI heating. The key tool of this research was the upgraded Thomson scattering diagnostics with variable intervals between probing pulses (20 pulses in total). The scattering points were placed along the major plasma radius from the inner to the outer plasma border (10 points in total). Simulation of the electron transport in the L and H-mode, based on experimentally measured ne(R) Te(R) profiles was carried out using the code ASTRA for the OH and NBI dischargers.