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The effect of biased limiter on the magnetic island width in tokamak plasma

Published online by Cambridge University Press:  13 December 2013

M. Ghasemloo ,
M. Ghoranneviss  and
M. K. Salem
M. Ghasemloo*
Affiliation:
Department of Physics, Shahr-e-Ray Branch, Islamic Azad University, Tehran, Iran
M. Ghoranneviss
Affiliation:
Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, P.O.Box 14665-678, Tehran, Iran
M. K. Salem
Affiliation:
Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, P.O.Box 14665-678, Tehran, Iran
*
†Email address for correspondence: [email protected]
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Abstract

In this work the effects of Cold Biased Limiter (CBL) and Emissive Biased Limiter (EBL) have been individually investigated, in both positive and negative polarities, on the width and frequency of magnetic islands. The effects were examined using singular value decomposition and wavelet techniques on mirnov coil signals. The results show that the application of EBL with both positive and negative polarities has been more effective on plasma stability compared with CBL. Comparing different polarities of CBL and EBL revealed that the positive polarity was more effective on the width of magnetic islands than negative polarity. The greatest impact occurs during EBL with positive polarity, in which reduction is observed in both width of magnetic islands and emission of Hα radiation. Besides, intensity and frequency of magnetic islands are reduced from 50 to 25 kHz in around 1 ms after bias application. Meanwhile, the minimal effect on width and frequency of magnetic field occurs in CBL with negative polarity.

Type
Papers
Information
Journal of Plasma Physics , Volume 80 , Issue 1 , February 2014 , pp. 113 - 130
Copyright
Copyright © Cambridge University Press 2013 

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References

REFERENCES

Brower, D. L., McCool, S. C. and Chen, J. Y. 1993 Proceedings of the 14th International Conference, 1992, Wurzburg, Germany. Plasma Phys. Control. Nucl. Fusion Res. (International Atomic Energy Agency, Vienna, Austria) 2, 177.Google Scholar
Burrell, K. H. 1997 Phys. Plasmas 4, 1499.Google Scholar
Cabral, J. A. C., Varandas, C. A. F., Alonso, M. P., Belo, P., Canrio, R., Fernandes, H., Gomes, R., Malaquias, A., Malinov, F., Serra, F. Silva, et al. 1998 Plasma Phys. Control. Fusion 40, 1001.CrossRefGoogle Scholar
Chandra, D., Sen, A. and Kaw, P. 2007 Nucl. Fusion 47, 1238.Google Scholar
Chandra, D., Sen, A., Kaw, P., Bora, M. P. and Kruger, S. 2005 Nucl. Fusion 45, 524.Google Scholar
Chang, Z. and Callen, J. D. 1990 Nucl. Fusion 30, 219.Google Scholar
Chen, X. L. and Morrison, P. J. 1990a Phys. Fluids B 2, 495.Google Scholar
Chen, X. L. and Morrison, P. J. 1990b Phys. Fluids B 2, 2575.Google Scholar
Den Hartog, D. J., Chapman, J. T., Craig, D., Fiksel, G., Fontana, P. W., Prager, S. C. and Sarff, J. S. 1999 Phys. Plasmas 6, 1813.CrossRefGoogle Scholar
deVries, P. C., Waidmann, G., Donne, A. J. H. and Schuller, F. C. 1996 Plasma Phys. Control. Fusion 38, 467.Google Scholar
deVries, P. C., Waidmann, G., Kramer-Flecken, A., Donn, A. J. H. and Schller, F. C. 1997 Plasma Phys. Control. Fusion 39, 439.Google Scholar
Diamond, P. H., Shapiro, V., Shevchenko, V., Kim, Y.-B., Rosenbluth, M. N., Carreras, B. A., Sidikman, K., Lynch, V. E., Garcia, L., Terry, P. W, et al. 1993 Plasma Phys. Control. Nucl. Fusion Res. (International Atomic Energy Agency, Vienna) 2, 97.Google Scholar
Dominguez, R. R. and Staebler, G. M. 1993 Phys. Fluids B 5, 3876.Google Scholar
Dreval, M., Xiao, C., Trembach, D., Hirose, A., Elgriw, S., Pant, A., Rohraff, D. and Niu, T. 2008 Plasma Phys. Control. Fusion 50, 095014, doi:10.1088/0741-3335/50/9/095014.Google Scholar
Escande, D. F. and Ottaviani, M. 2004 Phys.Lett. A 323, 287.Google Scholar
Fitzpatrick, R., Hastie, R. J., Martin, T. J. and Roach, C. M. 1993 Nucl. Fusion 33, 1533.Google Scholar
Fitzpatrik, R. and Waelbroeck, F. L. 2009 Phys. Plasmas 16, 052502.Google Scholar
Freidberg, J. P. 1987 Ideal Magnetohydrodynamics. New York, NY: Springer.Google Scholar
Furth, H. P., Killeen, J. and Rosenbluth, M. N. 1963 Phys. Fluids 6, 459.Google Scholar
Gao, H., Zhai, K., Wen, Y. Z., Wan, S. D., Wang, G. D., and Yu, C. X. 1995 J. Plasma Phys. 54, 393.CrossRefGoogle Scholar
Ghasemloo, M., Ghoranneviss, M., Salem, M. K., Arvin, R., Mohammadi, S and Nik Mohammadi, A. 2013 Phys. Plasmas 20, 032503.Google Scholar
Ghoranneviss, M., Hogabri, A and Kuhn, S. 2003 Nucl. Fusion 43, 210.CrossRefGoogle Scholar
Hawling, A. A. and Robinson, D. C. 1988 Plasma Phys. Control. Fusion 30, 1863.Google Scholar
Jaenicke, R. and W VII-A Team. 1988 Nucl. Fusion 28, 1737.CrossRefGoogle Scholar
Kluber, O., Zohm, H., Bruhns, H., Gernhardt, J., Kallenbach, K. and Zehrfeld, H. P. 1991 Nucl. Fusion 31, 907.Google Scholar
Lau, K. M. and Weng, H. 1995 Bull. Am. Meteorol. Soc. 76, 12.Google Scholar
Mahmoodi Darian, M., Ghoranneviss, M., Salem, M. K. and Arvin, R. 2004 Czechoslovak. J. Phys. 54, 65.CrossRefGoogle Scholar
Matsumoto, H., Burrell, K. H., Carlstrom, T. M., Doyle, E. J., Gohil, P., Groebner, R. J., Lehecka, T., Luhmann, N. C. Jr, Mahdavi, M. A., Osborne, T. H., et al. 1992 Plasma Phys. Control. Fusion 34, 615.Google Scholar
Maurer, D. A. 2000 Magnetic Island Dynamics Induced by Rotating Magnetic Perturbations in Tokamak Plasma. PhD thesis, Graduate School of Arts and Sciences, Colombia University, New York, NY.Google Scholar
Militello, F. and Porcelli, F. 2004 Phys. Plasmas 11, L13.Google Scholar
Nagayman, Y., Taylor, G., Fredrickson, E. D., Budny, R. V., Janos, A. C., Mansfield, D. K., McGuire, K. M. and Yamada, M. 1996 Phys. Plasmas 3, 2631.Google Scholar
Nascimento, I., Yu, C., Kuznetsov, K., Guimares-Filho, Z. O., Chamaa-Neto, I. El, Usuriaga, O., Fonseca, A. M. M., Galvo, R. M. O., Caldas, I. L., Severo, J. H. F., et al. 2007 Nucl. Fusion 47, 1570, doi:10.1088/0029-5515/47/11/019.Google Scholar
Pavlo, P. and Duran, I. 1999 Workshop ‘Role of electric fields in plasma confinement and exhaust,’ Maastricht, June 19–20. Czech. J. Phys. 49 (S3), 127–140.Google Scholar
Romannikov, A. 2007 Plasma Phys. Control. Fusion 49, 641. doi:10.1088/0741-3335/49/5/006.CrossRefGoogle Scholar
Rutherford, P. H. 1973 Phys. Fluids 16, 1903.Google Scholar
Sen, S. and Sen, A. 1996 Phys. Plasmas 3, 2224.Google Scholar
Sidikman, K. L., Carreras, B. A., Diamond, P. H. and Garcia, L. 1994 Phys. Plasmas 1, 1142.Google Scholar
Silva, C., Nedzelskiy, I., Figueiredo, H., Galv, R. M. O., ão Cabral, J. A. C., and Varandas, C. A. F. 2005 J. Nucl. Mater 337, 415.CrossRefGoogle Scholar
Staebler, G. M. and Dominguez, R. R. 1991 Nucl. Fusion 31, 1891.CrossRefGoogle Scholar
Taylor, R. J., Brown, M. L., Fried, B. D., Grote, H., Liberati, J. R., Morales, G. J., Pribyl, P., Darrow, D, and Ono, M. 1989 Phys. Rev. Lett. 63, 2365.Google Scholar
Taylor, E. D., Cates, C., Mauel, M. E., Maurer, D. A., Nadle, D., Navratil, G. A. and Shilov, M. 2002 Phys. Plasmas 9, 3938.Google Scholar
Vahala, G., Vahala, L., Harris, J. H., Bateman, G., Waddell, B. V., Dunlap, J. L., Par, V. K. and Burris, R. D. 1980 Nucl. Fusion 20, 17.CrossRefGoogle Scholar
Van Milligen, B. P., van Lammeren, A. C. A. P., Lopes Cardozo, N. J., Schuller, F. C. and Verreck, M. 1993 Nucl. Fusion 33, 1119.Google Scholar
Van Oost, G. and Duran, I. 1998 Workshop ‘Role of electric fields in plasma confinement and exhaust,’ Prague, July 6–8. Czech. J. Phys. 48 (S3), 60–71.Google Scholar
Waelbroeck, F. L., Fitzpatrick, R. and Grasso, D. 2007 Phys. Plasmas 14, 022302.CrossRefGoogle Scholar
Wesson, J. A. 1978 Nucl. Fusion. 18, 87.Google Scholar
Wesson, J. A. 2004 Tokamaks, 3rd edn.New York, NY: Oxford University Press.Google Scholar
Weynants, R. R. and Van Oost, G. 1993 Plasma Phys. Control. Fusion 35, B177.Google Scholar
Weynants, R. R., Van Oost, G., Bertschinger, G., Boedo, J., Brys, P., Delvigne, T., Dippel, K. H., Durodie, F., Euringer, H., Finken, K. H., et al. 1992 Nucl. Fusion 32, 837.CrossRefGoogle Scholar
White, R. B. 1983 Resistive instabilities and field line reconnection. In: Handbook of Plasma Physics (eds. Rosenbluth, M. N., and Sagdeev, R. Z.). Vol. 1, Basic Plasma Physics I (eds. A. A. Galeev and R. N. Sudan). Amsterdam, Netherlands: North Holland, 611 p.Google Scholar