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

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 p...

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Bibliographic Details
Published in:Journal of physics. Conference series 2014-01, Vol.516 (1), p.12010-4, Article 1
Main Authors: Kurskiev, G S, Tolstyakov, S Yu, Gusev, V K, Kochergin, M M, Khromov, N A, Melnik, A D, Minaev, V B, Mukhin, E E, Patrov, M I, Petrov, Yu V, Sakharov, N V, Semenov, V V, Senichenkov, I Yu
Format: Article
Language:English
Subjects:
Density
Diagnostic software
Dischargers
Electron energy
Electron temperature
Electron transport
Heating
Physics
Spatial distribution
Thomson scattering
Tokamak devices
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Summary: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.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/516/1/012010