Plasma and Fusion Research
Volume 5, S2043 (2010)
Regular Articles
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
Abstract
The steady state in the GAMMA10 tandem mirror, in which radial transport due to flute mode turbulence is balanced by plasma heating and production, is investigated. The basic equations used here exclude the Alfvén and acoustic modes, which are unnecessary for transport due to the flute modes. The basic equations can be applied to the magnetic divertor if the system is assumed to be axisymmetric. High-pressure effects in non-axisymmetric magnetic fields in GAMMA10 are taken into the magnetic specific volume. Numerical calculation is performed to investigate the transport process due to flute mode fluctuations. Mild plasma heating with production leads the system to a steady state, whereas strong heating with production leads the system into sawtooth-like oscillation due to strong flute mode turbulence.
Keywords
flute mode, interchange mode, mirror, MHD, simulation
Full Text
References
- [1] M. Inutake et al., Nuclear Fusion Supplement 2, 651 (1993), (Proc. 4th Int. Conf. on Plasma Physics and Controlled Nuclear Fusion Research, IAEA, Würzburg, 30 Sep.-7 Oct., 1992).
- [2] K. Yatsu et al., Nucl. Fusion 41, 613(2001).
- [3] I. Katanuma, K. Yashiro, T. Imai and V.P. Pastukhov, Proc. 18th Int. Toki Conf. Development of Physics and Technology of Stellarators/Heliotrons “en route to DEMO”, Ceratopia Toki, Gifu, Japan, December 9-12, 2008, P1-16, pp.200-203.
- [4] for example, M.N. Rosenbluth and C.L. Longmire, Annals of Physics 1, 120 (1957).
- [5] for example, I. Katanuma, Y. Tatematsu, K. Ishii, T. Tamano and K. Yatsu, J. Phys. Soc. Jpn. 69, 3244 (2000).
- [6] P.V. Pastukhov, Plasma Phys. Rep. 31, 577 (2005).
- [7] I. Katanuma, P.V. Pastukhov et al., J. Plasma Fusion Res. 84, 279 (2008).
- [8] I. Katanuma, Y. Sasagawa, Y. Tatematsu et al., Nucl. Fusion 46, 608 (2006).
- [9] Y. Sasagawa, I. Katanuma, Y. Mizoguchi et al., Phys. Plasmas 13, 122506 (2006).
- [10] S.I. Braginskii, Reviews of Plasma Physics, ed. A.M.A. Leontovich (Consultants Bureau, New York, 1965) Vol. 1.
This paper may be cited as follows:
Isao KATANUMA, Kotaro YAGI, Nobuyuki ICHIOKA, Shun MASAKI, Yosuke NAKASHIMA, Makoto ICHIMURA and Tsuyoshi IMAI, Plasma Fusion Res. 5, S2043 (2010).