The familiar q≳1 criterion (where q is the safety factor) for the stability of tokamak equilibria against localized interchanges, was derived for an isotropic pressure toroidal plasma. The present importance of neutral injection techniques and also the evidence of significant numbers of runaway electrons in some experiments both lead to an interest in plasmas with anisotropic pressure. The stability criterion appropriate to such a plasma in a general axisymmetric toroidal geometry is developed basing the analysis on the kinetic energy principle. The general result is applied to a discussion of perpendicular and parallel neutral injection in a large aspect ratio torus and also to the effect of runaway electrons.
REFERENCES
1.
2.
3.
4.
5.
V. D. Shafranov, in Reviews of Plasma Physics, edited by M. A. Lentovich (Consultants Bureau, New York, 1966), Vol. 2, p. 103.
6.
7.
8.
D. A.
Spong
, J. F.
Clarke
, J. A.
Rome
, and T.
Kammash
, Nucl. Fusion
14
, 397
(1974
).9.
10.
11.
12.
13.
S. Fisher, H. Grad, Y. Sone, and J. Staples, in Plasma Physics and Controlled Nuclear Fusion Research (International Atomic Energy Agency, Vienna, 1971), Vol. I, p. 899.
14.
15.
16.
17.
B. R. Suydam, in Proceedings of the Second International Conference on the Peaceful Uses of Atomic Energy (United Nations, Geneva, 1958), Vol. 31, p. 157.
18.
19.
J. M.
Dawson
, H. P.
Furth
, and F. H.
Tenney
, Phys. Rev. Lett.
26
, 1156
(1971
).20.
A. H.
Glasser
, J. M.
Greene
, and J. L.
Johnson
, Phys. Fluids
18
, 875
(1975
).21.
A. H.
Glasser
, J. M.
Greene
, and J. L.
Johnson
, Phys. Fluids
19
, 567
(1976
).
This content is only available via PDF.
© 1976 American Institute of Physics.
1976
American Institute of Physics
You do not currently have access to this content.