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Title: Evolution of the millimeter-wave collective Thomson scattering system of the high-field tokamak Frascati Tokamak Upgrade

Abstract

We first describe the improved receiving system of the diagnostic experiment of millimeter-wave collective Thomson scattering being run on the Frascati Tokamak Upgrade (FTU), and then discuss some peculiar problems and new operating procedures related to the investigation of strong anomalous spectra of nonthermal origin, many-orders-of-magnitude stronger than the ion thermal feature merged in them, systematically observed in the experimentation, and finally ascribed to a perturbation of the gyrotron that generates the probing beam. Arguments in favor of a more general valence of the solutions actuated for the specific case of FTU are finally given.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [3];  [4]
  1. Istituto di Fisica del Plasma, CNR-ENEA-Euratom Association, Via R. Cozzi 53, 20125 Milan (Italy)
  2. (Russian Federation)
  3. (Italy)
  4. (United Kingdom)
Publication Date:
OSTI Identifier:
20953419
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 78; Journal Issue: 4; Other Information: DOI: 10.1063/1.2719197; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAMS; DISTURBANCES; FT TOKAMAK; IONS; PLASMA; PLASMA CONFINEMENT; SPECTROSCOPY; THOMSON SCATTERING

Citation Formats

Tartari, U., Grosso, G., Granucci, G., Gandini, F., Garavaglia, S., Grossetti, G., Simonetto, A., Mellera, V., Muzzini, V., Lubyako, L., Shalashov, A., Orsitto, F. P., Ciccone, G., Volpe, F., Institute of Applied Physics, Russian Academy of Sciences, Ulyanova Street 46, 603950 Nizhny Novgorod, CRE-ENEA, Euratom-ENEA Association, Via E. Fermi 45, 00044 Frascati, and Culham Science Centre, UKAEA-EURATOM Association, Abingdon, Oxfordshire, OX14 3DB. Evolution of the millimeter-wave collective Thomson scattering system of the high-field tokamak Frascati Tokamak Upgrade. United States: N. p., 2007. Web. doi:10.1063/1.2719197.
Tartari, U., Grosso, G., Granucci, G., Gandini, F., Garavaglia, S., Grossetti, G., Simonetto, A., Mellera, V., Muzzini, V., Lubyako, L., Shalashov, A., Orsitto, F. P., Ciccone, G., Volpe, F., Institute of Applied Physics, Russian Academy of Sciences, Ulyanova Street 46, 603950 Nizhny Novgorod, CRE-ENEA, Euratom-ENEA Association, Via E. Fermi 45, 00044 Frascati, & Culham Science Centre, UKAEA-EURATOM Association, Abingdon, Oxfordshire, OX14 3DB. Evolution of the millimeter-wave collective Thomson scattering system of the high-field tokamak Frascati Tokamak Upgrade. United States. doi:10.1063/1.2719197.
Tartari, U., Grosso, G., Granucci, G., Gandini, F., Garavaglia, S., Grossetti, G., Simonetto, A., Mellera, V., Muzzini, V., Lubyako, L., Shalashov, A., Orsitto, F. P., Ciccone, G., Volpe, F., Institute of Applied Physics, Russian Academy of Sciences, Ulyanova Street 46, 603950 Nizhny Novgorod, CRE-ENEA, Euratom-ENEA Association, Via E. Fermi 45, 00044 Frascati, and Culham Science Centre, UKAEA-EURATOM Association, Abingdon, Oxfordshire, OX14 3DB. Sun . "Evolution of the millimeter-wave collective Thomson scattering system of the high-field tokamak Frascati Tokamak Upgrade". United States. doi:10.1063/1.2719197.
@article{osti_20953419,
title = {Evolution of the millimeter-wave collective Thomson scattering system of the high-field tokamak Frascati Tokamak Upgrade},
author = {Tartari, U. and Grosso, G. and Granucci, G. and Gandini, F. and Garavaglia, S. and Grossetti, G. and Simonetto, A. and Mellera, V. and Muzzini, V. and Lubyako, L. and Shalashov, A. and Orsitto, F. P. and Ciccone, G. and Volpe, F. and Institute of Applied Physics, Russian Academy of Sciences, Ulyanova Street 46, 603950 Nizhny Novgorod and CRE-ENEA, Euratom-ENEA Association, Via E. Fermi 45, 00044 Frascati and Culham Science Centre, UKAEA-EURATOM Association, Abingdon, Oxfordshire, OX14 3DB},
abstractNote = {We first describe the improved receiving system of the diagnostic experiment of millimeter-wave collective Thomson scattering being run on the Frascati Tokamak Upgrade (FTU), and then discuss some peculiar problems and new operating procedures related to the investigation of strong anomalous spectra of nonthermal origin, many-orders-of-magnitude stronger than the ion thermal feature merged in them, systematically observed in the experimentation, and finally ascribed to a perturbation of the gyrotron that generates the probing beam. Arguments in favor of a more general valence of the solutions actuated for the specific case of FTU are finally given.},
doi = {10.1063/1.2719197},
journal = {Review of Scientific Instruments},
number = 4,
volume = 78,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}