Abstract
A new generation of broadband reflectometers based on solid state components has been installed on Tore-Supra. With reflectometers covering the range 50 to 155 GHz, the whole plasma can be scanned. Two X-mode reflectometers (V and W band) are dedicated to electron density profile measurements. Diagnostics are operated routinely with an automatic algorithm to reconstruct the density profile from shot to shot. A fast acquisition mode is available to study short time plasma evolution. For turbulence and transport studies, a third reflectometer operating between 105 and 155 GHz measures density fluctuations in the plasma centre. Sensitive to large scales, it can retrieve density perturbation due to MHD modes or broadband turbulence. Lastly, a Doppler reflectometer, based on back scattering, is being installed for measuring the poloidal rotation and fluctuations amplitude at higher wave numbers.
Similar content being viewed by others
References
V. L. Ginzburg, The Propagation of Electro-magnetic Waves in Plasmas (Pergamon, Oxford, 1964).
C. Laviron, A J H Donné, M E Manso and J Sanchez, Plasma Phys. Control. Fusion 38, 905(1996).
E. Mazzucato, Rev. Sci. Instrum. 69, 2201(1998).
H. J. Hartfuss, T. Geist and M. Hirsh, Plasma Phys. Control. Fusion 39, 1693(1997).
G. Vayakis, et al., Rev. Sci. Instrum. 68, 435(1997).
J. Jacquinot, Recent developments towards Steady State physics and technology of Tokamaks in Cadarache, 19th IAEA Fusion Energy conference, Lyon, France, 14-19 October 2002.
R.J. Colchin, ORMAK, Technical memo No 93, 1973
H. Bottolier-Curtet and G. Ichtchenko, Rev. Sci. Instrum. 58, 539(1987).
F. Simonet, Rev. Sci. Instrum. 56, 664(1985).
M. Paume, et al., Proc. of the IAEA Technical Committee Meeting on Microwave Reflectometry for Fusion Plasma Diagnostic, Abingdon, UK, 1992, p. 21.
Ph Moreau, PhD thesis, Développement d'un réflectomètre à balayage ultra-rapide-Etude de l'influence de la turbulence du plasma sur la mesure des profils de densité électroniques, Université de Provence, Marseille, 1997.
Ph. Moreau, et al., Rev. Sci. Instrum. 71, 74(2000).
F. Clairet, C. Bottereau, J.-M. Chareau, and R. Sabot, Rev. Sci. Instrum. 74, 1481(2003).
F Clairet, et al., Plasma Phys. Control. Fusion 43, 429(2001).
B. Pégourié et al. Journal of Nuclear Materials 313-316, 539(2003).
F. Clairet, L. Colas, S. Heuraux, G. Lombard, 29th EPS Conference on Plasma Phys. and Contr. Fusion, 26B, 1067, Montreux, 2002.
N. Bretz, Phys. Fluids B 4, 2414(1992).
C Fanack, et al., Plasma Phys. Control. Fusion 38, 1915(1996).
S. Heuraux, S. Hacquin, F. da Silva, F. Clairet, R. Sabot G. Leclert, Rev. Sci. Instrum. 74, 1501(2003)
A Ejiri, K Shinohara and K Kawahata, Plasma Phys. Control. Fusion 39, 1963(1997).
J. Wesson, Tokamaks, New York: Oxford University Press, 1997.
B. Branas et al., Proc. 23rd EPS conf. On controlled fusion and plasma physics, Kiev, 1996
X. L. Zou et al., Proc. 26th EPS conf. On controlled fusion and plasma physics, Maastricht, 1999
M Hirsch, E Holzhauer, J Baldzuhn, B Kurzan and B Scott, Plasma Phys. Control. Fusion 43, 1641(2001)
G. Conway, et al., Latest results & future plans for Doppler reflectometry on ASDEX Upgrade, 6th Reflectometry workshop, San Diego, 5-8 May 2003.
A. Truc, et al., Rev. Sci. Instrum., 63, 3716(1992).
F. da Silva, S. Heuraux, P. Varela and M. Manso, 2D Reflectometry simulation as a tool for evaluating data processing capabilities, 6th Reflectometry workshop, San Diego, 5-8 May 2003.
E. Z. Gusakov and A. Yu. Popov, Plasma Phys. Control. Fusion 44, 2327(2002).
S. H. Heijnen, Rev. Sci. Instrum. 66, 419(1995)
T. Tokuzawa, K. Kawahata, R. O. Pavlichenko, K. Tanaka, and A. Ejiri, Rev. Sci. Instrum., 72, 328(2001).
T. Munsat, et al., Rev. Sci. Instrum. 74, 1426(2003).
G. Conway, et al., Phys. Rev. Lett. 84, 1463(2000)
R. C. Wolf, Plasma Phys. Control. Fusion 45, R1(2003).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sabot, R., Clairet, F., Honoré, C. et al. Advances of Reflectometry on Tore-Supra: From Edge Density Profile to Core Density Fluctuations. International Journal of Infrared and Millimeter Waves 25, 229–246 (2004). https://doi.org/10.1023/B:IJIM.0000017896.97839.24
Issue Date:
DOI: https://doi.org/10.1023/B:IJIM.0000017896.97839.24