Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-26T06:22:13.191Z Has data issue: false hasContentIssue false
  • English
  • Français

Tokamak turbulence at the scrape-off layer in TCABR with an ergodic magnetic limiter

Published online by Cambridge University Press:  01 June 2007

M. V. A. P. HELLER ,
I. L. CALDAS ,
A. A. FERREIRA ,
E. A. O. SAETTONE  and
A. VANNUCCI
M. V. A. P. HELLER
Affiliation:
Institute of Physics, University of São Paulo, C. P. 66318, 05315-970 São Paulo, SP, Brazil
I. L. CALDAS
Affiliation:
Institute of Physics, University of São Paulo, C. P. 66318, 05315-970 São Paulo, SP, Brazil
A. A. FERREIRA
Affiliation:
Institute of Physics, University of São Paulo, C. P. 66318, 05315-970 São Paulo, SP, Brazil
E. A. O. SAETTONE
Affiliation:
Institute of Physics, University of São Paulo, C. P. 66318, 05315-970 São Paulo, SP, Brazil
A. VANNUCCI
Affiliation:
Institute of Physics, University of São Paulo, C. P. 66318, 05315-970 São Paulo, SP, Brazil
Get access Rights & Permissions [Opens in a new window]

Abstract

The influence of an ergodic magnetic limiter (EML) on plasma turbulence is investigated in the Tokamak Chauffage Alfvén Brésilien (TCABR), a tokamak with a peculiar natural superposition of the electrostatic and magnetic fluctuation power spectra. Experimental results show that the EML perturbation can reduce both the magnetic oscillation and the electrostatic plasma turbulence. Whenever this occurs, the turbulence-driven particle transport is also reduced. Moreover, a bispectral analysis shows that the nonlinear coupling between low- and high-frequency electrostatic fluctuations increases significantly with the EML application.

Type
Papers
Information
Journal of Plasma Physics , Volume 73 , Issue 3 , June 2007 , pp. 295 - 306
Copyright
Copyright © Cambridge University Press 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1]Wootton, A. J., Mc Cool, S. C. and Zheng, S. 1991 Fusion Technol. 19, 473.CrossRefGoogle Scholar
[2]Wagner, F. and Stroh, U. 1993 Plasma Phys. Control. Fusion 35, 1321.CrossRefGoogle Scholar
[3]Horton, W. 1990 Phys. Rep. 192, 1.CrossRefGoogle Scholar
[4]Camargo, S. J., Scott, B. D. and Biskamp, D. 1996 Phys. Plasmas 3, 3912.CrossRefGoogle Scholar
[5]Camargo, S. J., Biskamp, D. and Scott, B. D. 1995 Phys. Plasmas 2, 48.CrossRefGoogle Scholar
[6]Sarazin, Y. et al. 2003 J. Nucl. Mater. 313–316, 796.CrossRefGoogle Scholar
[7]Beyer, P., Garbet, X., Benkadda, S., Ghendrih, P. and Sarazin, Y. 2002 Plasma Phys. Control. Fusion 44, 2167.CrossRefGoogle Scholar
Bourdelle,, C. 2005 Plasma Phys. Control. Fusion 47, A317.CrossRefGoogle Scholar
[8]Li, G. et al. 1995 Phys. Plasmas 2, 2615.CrossRefGoogle Scholar
[9]Brunsell, P. R. et al. 1994 Phys. Plasmas 1, 2297.CrossRefGoogle Scholar
[10]Rempel, T. D. et al. 1991 Phys. Rev. Lett. 67, 1438.CrossRefGoogle Scholar
[11]Lin, H. 1991 PhD thesis, Report FRCR no. 401, University of Texas, Fusion Research Center, Austin, TX, USA.Google Scholar
[12]Heller, M. V. A. P., Castro, R. M., Brasílio, Z. A., Caldas, I. L. and Silva, R. P. 1995 Nucl. Fusion 35, 59.CrossRefGoogle Scholar
[13]Heller, M. V. A. P., Castro, R. M., Caldas, I. L., Brasílio, Z. A., Silva, R. P. and Nascimento, I. C. 1997 J. Phys. Soc. Japan 66, 3453.CrossRefGoogle Scholar
[14]Heller, M. V. A. P., Brasilio, Z. A., Caldas, I. L. and Castro, R. M. 1999 J. Phys. Soc. Japan 68, 1309.CrossRefGoogle Scholar
[15]Devynck, P. et al. 2005 Plasma Phys. Control. Fusion 47, 269.CrossRefGoogle Scholar
[16]Jakubowski, M. W., Abdullaev, S. S., Finken, K. H. and the TEXTOR team. 2004 Nucl. Fusion 44, 51.CrossRefGoogle Scholar
[17]Ghendrih, Ph., Grosman, A. and Capes, H. 1996 Plasma Phys. Control. Fusion 38, 1653.CrossRefGoogle Scholar
[18]Shoji, T. et al. 1992 J. Nucl. Mater. 196–198, 296.CrossRefGoogle Scholar
[19]Takamura, S. 1989 J. Nucl. Mater. 162–164, 643.CrossRefGoogle Scholar
[20]Moyer, R. A. et al. 2005 Phys. Plasmas 12, 056119 9.CrossRefGoogle Scholar
[21]Karger, F. and Lackner, K. 1977 Phys. Lett. A 61, 385.CrossRefGoogle Scholar
[22]Caldas, I. L., Viana, R. L., Araujo, M. S. T., Vannucci, A., Silva, E. C., Ullmann, K. and Heller, M. V. A. P. 2002 Brazil. J. Phys. 32, 980.CrossRefGoogle Scholar
[23]McCool, S. C., Wootton, A. J., Aydemir, A. Y., Bengtson, R. D. and Oedo, J. A. 1989 Nucl. Fusion 29, 547.CrossRefGoogle Scholar
[24]Takamura, S., Ohinishi, N., Yamada, H. and Okuda, T. 1987 Phys. Fluids 30, 144.CrossRefGoogle Scholar
[25]Takamura, S., Yamada, H. and Okuda, T. 1988 Nucl. Fusion 28, 183.CrossRefGoogle Scholar
[26]Grosman, A. et al. 1992 J. Nucl. Mater. 196–198, 59.CrossRefGoogle Scholar
Evans, T. E. et al. 1992 J. Nucl. Mater. 196–198, 421.CrossRefGoogle Scholar
[27]Evans, T. E. et al. 1989 Bull. Amer Phys. Soc. 34, 2168.Google Scholar
[28]Evans, T. E. et al. 1990 Bull. Amer. Phys. Soc. 35, 1998.Google Scholar
[29]Budaev, V., Kikuchi, Y., Uesugi, Y. and Takamura, S. 2004 Nucl. Fusion 44, S108.CrossRefGoogle Scholar
[30]Pires, C. J. A., Saettone, E. A. O., Kucinski, M. Y., Vannucci, A. and Viana, R. L. 2005 Plasma Phys. Control. Fusion 47, 1609.CrossRefGoogle Scholar
[31]Heller, M. V. A. P., Caldas, I. L., Ferreira, A. A., Saettone, E. A. O., Vannucci, A., Nascimento, I. C. and Severo, J. H. F. 2005 Czech. J. Phys. 55, 265.CrossRefGoogle Scholar
[32]Nascimento, I. C. et al. 2005 Nucl. Fusion 45, 796.CrossRefGoogle Scholar
[33]Galvão, R. M. O. et al. 2001 Plasma Phys. Control. Fusion 43, A 299.CrossRefGoogle Scholar
[34]Ferreira, A. A., Heller, M. V. A. P. and Caldas, I. L. 2000 Phys. Plasmas 7, 3567.CrossRefGoogle Scholar
[35]Saettone, E. A. O. 2004 PhD thesis, Institute of Physics, University of São Paulo, Brazil.Google Scholar
[36]Ferreira, A. A., Heller, M. V. A. P., Caldas, I. L., Lerche, E. A., Ruchko, L. F. and Baccala, L. A. 2004 Plasma Phys. Control. Fusion 46, 669.CrossRefGoogle Scholar
[37]Van Milligen, B. Ph., Hidalgo, C., Sánchez, E., Pedrosa, M. A., Balbín, R., García-Cortes, I. and Tynan, G. R. 1997 Rev. Sci. Instrum. 68, 967.CrossRefGoogle Scholar
[38]Hidalgo, C., Pedrosa, M. A. and Gonçalves, B. 2002 New J. Phys. 4, 511.CrossRefGoogle Scholar
[39]Kausche, U., Schlueter, H. 1991 Plasma Phys. Control. Fusion 33, 1309; 1992 Plasma Phys. Control. Fusion 34, 935.CrossRefGoogle Scholar
[40]Van Milligen, B. Ph., Sánchez, E., Estrada, T., Hidalgo, C., Brañas, B., Carreras, B. and Garcia, L. 1995 Phys. Plasmas 2, 3017.CrossRefGoogle Scholar
[41]Diamond, P. H. et al. 2000 Phys. Rev. Lett. 84, 4842.CrossRefGoogle Scholar
[42]Batista, A. M., Caldas, I. L., Viana, R. L., Lopes, S. R., Horton, W. and Morrison, P. J. Nonlinear three-mode interaction and drift-wave turbulence in a tokamak edge model, submitted Phys. Plasmas.Google Scholar
[43]Antar, G. Y., Devynck, P., Garbet, X. and Luckhardt, S. C. 2001 Phys. Plasmas 8, 1612.CrossRefGoogle Scholar
[44]Antoni, V. et al. 2001 Phys. Plasmas 8, 5171.Google Scholar
[45]Antoni, V. et al. 2001 Europhys. Lett. 54, 51.CrossRefGoogle Scholar
[46]Vianello, N. et al. 2002 Plasma Phys. Control. Fusion 44, 2513.CrossRefGoogle Scholar
[47]Roberto, M., Silva, E. C., Caldas, I. L. and Viana, R. L. 2004 Phys. Plasmas 11, 214.CrossRefGoogle Scholar