Title :
Detection system for the measurements of collective Thomson scattering spectra in fusion plasma
Author :
Lubyako, L.V. ; Suvorov, E.V. ; Burov, A.B. ; Shtanuk, A.M. ; Dryagin, Yu.A. ; Kukin, L.M. ; Skalyga, N.K.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
Abstract :
The detection system designed for the proof-of-principle collective Thomson scattering (CTS) experiments using a 140 GHz gyrotron as a source of probing radiation has been discussed. The system is aimed at ion temperature measurements in a moderate size fusion installations W7-AS stellarator (Garching, Germany) and FTU tokamak (Frascati, Italy) as a first step in CTS experiments using gyrotrons with the prospects of its further upgrading for alpha-particle diagnostics. It is capable of ion temperature measurements for a wide range of plasma parameters (H plasma, D plasma, density range from a few times 1013 cm-3 to 2×1014 cm-3, ion temperatures from few hundred eV to a few keV) in various scattering geometries with the scattering angles from 60° to 180°
Keywords :
Thomson effect; Tokamak devices; fusion reactor instrumentation; gyrotrons; millimetre wave detectors; millimetre wave generation; millimetre wave measurement; plasma diagnostics; plasma temperature; radiometers; stellarators; temperature measurement; 140 GHz; D; D plasma; H; H plasma; TU tokamak; W7-AS stellarator; alpha-particle diagnostics; collective Thomson scattering spectra; density; detection system; fusion installations; fusion plasma; gyrotron; ion temperature measurement; ion temperature measurements; probing radiation; Gyrotrons; Plasma density; Plasma diagnostics; Plasma measurements; Plasma temperature; Radiation detectors; Scattering parameters; Temperature distribution; Temperature measurement; Tokamaks;
Conference_Titel :
Physics and Engineering of Millimeter and Submillimeter Waves, 1998. MSMW '98. Third International Kharkov Symposium
Conference_Location :
Kharkov
Print_ISBN :
0-7803-5553-9
DOI :
10.1109/MSMW.1998.758913
