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Volume 53 Supplement 6

Special Issue: Magnetic Reconnection in Space and Laboratory Plasmas

Effect of magnetic reconnection on CT penetration into magnetized plasmas

Abstract

To understand the fuelling process in a fusion device by a compact toroid (CT) injection method, three dimensional MHD numerical simulations, where a spheromak-like CT (SCT) is injected into magnetized target plasmas, has been carried out. It has been found that the SCT penetration into magnetized target plasmas is accompanied by complex physical dynamics, which is not simply described by the conventional simple theoretical model. One of the most remarkable phenomena is magnetic reconnection. Magnetic reconnection plays a role in supplying the high density plasma, initially confined in the SCT magnetic field, to the target region. Furthermore, it is suggested that magnetic reconnection relaxes the deceleration of the SCT.

References

  • Brown, M. R. and P. M. Bellan, Efficiency and scaling of current drive and refueling by sheromak injection into a tokamak, Nucl. Fusion, 32, 1125–1137, 1992.

    Article  Google Scholar 

  • Finn, J. M. and W. M. Manheimer, Spheromak tilting instability in cylindrical geometry, Phys. Fluids, 24, 1336–1341, 1981.

    Article  Google Scholar 

  • Fukumoto, N., et al., Compant torus acceleration and injection experiment, Bull. Am. Phys. Soc., 41, 1578, 1996.

    Google Scholar 

  • Gouge, M. J., et al., Development of innovative fuelling systems for fusion energy science, Fusion Energy 1996, Proc. 16th Int. Conf. Montreal, 1996, Vol. 3, IAEA, Vienna, 481, 1997.

  • Hwang, D. Q., M. Ryutova, and H. McLean, Penetration of a compressible magnetized plasma object into a low beta taret plasma, Phys. Plasmas, 6, 1515–1521, 1999.

    Article  Google Scholar 

  • Miyazawa, J., H. Yamada, and O. Motojima, Possibility of profile control using compact toroid injection on Large Helical Devide, Jpn. J. Appl. Phys., 37, 6620–6627, 1998.

    Article  Google Scholar 

  • Newcomb, W. A., Magnetohydrodynamic wave drag, Phys. Fluids B, 3, 1818–1829, 1991.

    Article  Google Scholar 

  • Ogawa, T., et al., Compact toroid injection experiment in JFT-2M, Nucl. Fusion, 39, 1911–1915, 1999.

    Article  Google Scholar 

  • Parks, P. B., Refuelling tokamaks by injection of compact toroids, Phys. Rev. Lett., 61, 1364–1367, 1988.

    Article  Google Scholar 

  • Perkins, L. J., S. K. Ho, and J. H. Hammer, Deep penetration fuelling of reactor-grade tokamak plasmas with accelerated compact toroids, Nucl. Fusion, 28, 1365–1378, 1988.

    Article  Google Scholar 

  • Raman, R., et al., Experimental demonstration of nondisruptive, central fueling of a tokamak by compact toroid injection, Phys. Rev. Lett., 73, 3101–3104, 1994.

    Article  Google Scholar 

  • Raman, R., et al., Experimental demonstration of tokamak fuelling by compact toroid injection, Nucl. Fusion, 37, 967–972, 1997.

    Article  Google Scholar 

  • Raman, R., et al., CT fuelling of Tdev, Controlled Fusion and Plasma Physics, Proc. 24th Eur. Conf. Berchtesgaden, 1997, Vol. 21A, Part I, European Physical Society, Geneva, 293, 1999.

  • Slough, J. T. and A. L. Hoffman, Acceleration of a field reversed configuration for central fueling of ITER, Fusion Energy 1996, Proc. 16th Int. Conf. Montreal, 1996, Vol. 2, IAEA, Vienna, 237–242, 1997.

    Google Scholar 

  • Suzuki, Y., et al., Three dimensional simulation study of spheromak injection into magnetized plasmas, Nucl. Fusion, 40, 277–288, 2000.

    Article  Google Scholar 

  • Yee, J. and P. M. Bellan, Effects of CT injector acceleration electrode configuration on tokamak penetration, Nucl. Fusion, 38, 711–721, 1998.

    Article  Google Scholar 

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Correspondence to Yoshio Suzuki.

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Suzuki, Y., Hayashi, T. & Kishimoto, Y. Effect of magnetic reconnection on CT penetration into magnetized plasmas. Earth Planet Sp 53, 547–551 (2001). https://doi.org/10.1186/BF03353268

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  • DOI: https://doi.org/10.1186/BF03353268

Keywords

  • Target Region
  • Lorentz Force
  • Magnetic Reconnection
  • High Density Plasma
  • Fusion Device