Investigation of the possibility of using correlation reflectometry to determine the parameters of small-scale turbulence in the core of a tokamak plasma
Tóm tắt
Results are reported from investigating the possibility of using reflectometry to determine the parameters of small-scale turbulence in the core of a tokamak plasma. In particular, the extent to which the reflectometric measurements are local is estimated. Experimental data from reflectometric measurements in the gradient zone, as well as the cross spectra and radial correlation functions, are presented. A turbulence model is constructed that yields spectral, statistical, and correlation turbulent plasma properties close to the measured ones. The model is used to simulate the propagation of electromagnetic radiation in a turbulent plasma.
Tài liệu tham khảo
R. J. Fonck, N. Bretz, G. Cosby, et al., Plasma Phys. Controlled Fusion 34, 1993 (1992).
P. Cripwell, A. E. Costley, and T. Fukuda, in Proceedings of the 1st IAEA Technical Committee Meeting on Microwave Reflectometry for Fusion Plasma Diagnostics, Abingdon, 1992 (IAEA, Vienna, 1992), p. 168.
A. A. Bagdasarov, V. I. Bugaria, N. L. Vasin, et al., in Proceedings of the 20th Conference on Controlled Fusion and Plasma Physics, Lisboa, 1993, ECA 17C, 79 (1993).
V. A. Vershkov, V. V. Dreval, and S. V. Soldatov, in Proceedings of the 21st Conference on Controlled Fusion and Plasma Physics, Montpellier, 1994, ECA 18B, 1192 (1994).
V. A. Vershkov and V. V. Dreval, Rev. Sci. Instrum. 70, 1700 (1999).
C. Forster, P. M. Schoch, R. L. Hickcok, and W. C. Jennings, IEEE Trans. Plasma Sci. 22, 359 (1994).
Y. Hamada, A. Nishizawa, Y. Kawasumi, et al., in Proceedings of the 15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Seville, 1994 (IAEA, Vienna, 1995), Vol. 1, p. 349.
Y. Hamada, A. Nishizawa, Y. Kawasumi, et al., Plasma Phys. Controlled Fusion 36, 1743 (1994).
V. A. Vershkov and S. V. Soldatov, in Proceedings of the 21st EPS Conference on Controlled Fusion and Plasma Physics, Montpellier, 1994, ECA 18B, 886 (1994).
V. A. Vershkov and V. V. Dreval, J. Nucl. Mater. 241–243, 873 (1997).
D. G. Bulyginskiy, A. D. Gurchenko, E. Z. Gusakov, et al., Phys. Plasmas 8, 2224 (2001).
N. N. Skvortsova, G. M. Batanov, L. M. Kolik, et al., J. Plasma Fusion Res. 5, 328 (2002).
G. M. Batanov, L. M. Kolik, A. E. Petrov, et al., Fiz. Plazmy 29, 365 (2003) [Plasma Phys. Rep. 29, 363 (2003)].
N. N. Skvortsova, G. M. Batanov, L. V. Kolik, et al., in Proceedings of the 30th EPS Conference on Controlled Fusion and Plasma Physics, St. Petersburg, 2003, ECA 27A, P-4.5 (2003).
R. Nazikian and E. Mazzucato, Rev. Sci. Instrum. 66, 392 (1995).
E. Z. Gusakov and B. O. Yakovlev, Plasma Phys. Controlled Fusion 44, 2525 (2002).
A. O. Urazbaev, V. A. Vershkov, S. V. Soldatov, et al., in Stochastic Models of Plasma Structural Turbulence, Ed. by V. Yu. Korolev and N. N. Skvortsova (MAKS, Moscow, 2003), p. 62 [in Russian].
V. A. Vershkov, L. G. Eliseev, S. A. Grashin, et al., in Proceedings of the 20th IAEA Conference on Fusion Energy, Villamoura, 2004, Paper OV4-4.
G. McKee, R. Ashley, R. Durst, et al., Rev. Sci. Instrum. 70, 913 (1999).
B. V. Sestroretskiĭ, Vopr. Radioélektr. Ser. Obsch.Vopr. Radioélektr., No. 2, 113 (1976).
B. V. Sestroretskiĭ, K. N. Klimov, S. A. Korolev, and A. S. Petrov, Simulation of Waveguide Devices by the Impedance Grid Method (MGIÉM, Moscow, 1999) [in Russian].