Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-25T14:29:40.514Z Has data issue: false hasContentIssue false
  • English
  • Français

Quasi-linear relaxation of runaway electrons in a HF heated tokamak plasma

Published online by Cambridge University Press:  13 March 2009

R. Klíma  and
V. V. Parail
R. Klíma
Affiliation:
Institute of Plasma Physics, Czechoslovak Academy of Sciences, Nademlýská 600, Prague 9, Czechoslovakia
V. V. Parail
Affiliation:
Institute of Plasma Physics, Czechoslovak Academy of Sciences, Nademlýská 600, Prague 9, Czechoslovakia
Get access Rights & Permissions [Opens in a new window]

Extract

The theory of quasi-linear diffusion of runaway electrons in the field of electromagnetic waves (HF field) excited by external sources is given. The frequency of the waves is somewhat less than the electron cyclotron frequency. The time-averaged distribution function of resonant electrons is derived. The presence of the toroidal electric field changes the process of quasi-linear relaxation considerably. It also leads to a continuous absorption of energy and momentum from the HF field. On the other hand, the HF field increases the number of high-energy electrons. As a consequence, beam instabilities can arise. A comparison with experimental results is given.

Type
Research Article
Information
Journal of Plasma Physics , Volume 17 , Issue 3 , June 1977 , pp. 543 - 551
Copyright
Copyright © Cambridge University Press 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Alikaev, V. V., Bobrovskii, G. A., Poznyak, V. I., Razumova, K. A. & Sokolov, Yu. A. 1975 Plasma Physics and Controlled Nuclear Fusion Research, Vol. 1, p. 241. I.A.E.A.Google Scholar
Kadomtsev, B. B. & Pogutse, O. P. 1967 Zh. Eksp. Teor. Fiz. 53, 2025.Google Scholar
Klíma, R. 1973 Plasma Phys. 15, 1031.Google Scholar
Palmadesso, P. J., Haber, I., Huba, J. D. & Papadoulos, K. 1976 Bull. Am. Phys. Soc.Google Scholar
Papadopoulos, K., Palmadesso, P., Haber, I., Winsor, N., Hui, B. & Coppi, B. 1976 Sherwood Meeting, Madison, Wisconsin.Google Scholar
Rowlands, G., Sizonenko, V. L. & Stepanov, K. N. 1966 Soviet Phys. JETP, 23, 661.Google Scholar
Shapiro, V. D. & Shevchenko, V. I. 1968 Zh. Eksp. Teor. Fiz. 54, 1187.Google Scholar
Yakimenko, V. L. 1963 Soviet Phys. JETP, 17, 1032.Google Scholar