21 st IAEA Fusion Energy Conference 16 - 21 October 2006 Chengdu, China

1. 21st IAEA Fusion Energy Conference 16 - 21 October 2006 Chengdu, China TH/P6-19

2. Improvement of plasma confinement due to ion and electron heating at the edge of tokamak Shurygin R.V., Mavrin A.A.RRC “Kurchatov Institute”, Moscow, Russian Federation Contact e-mail: alemavrin@yandex.ru

5. Geometry of the problem

7. Equation for vorticity: equation for density: equation for electron pressure: equation for ion pressure:

10. Fig.1 The dependence of the turbulent flux of particles on the ion heating parameter q0i.

12. Fig.2 The radial dependence of the turbulent flux of the ion heat on the ion heating parameter q0i.

14. Fig.3 Profiles of the time-averaged ion temperature for different ion heating parameter q0i.

15. Fig.4 Profiles of the time-averaged the diamagnetic ion drift velocity for different ion heating parameter q0i.

16. Fig.5 Profiles of the time-averaged poloidal ion velocity for different ion heating parameter q0i.

17. Fig.6 Profiles of the time-averaged ion pressure for different ion heating parameter q0i.

18. Fig.7 The dependence of the turbulent flux of particles on the electron heating parameter q0e.

20. Fig.8Evolution of the turbulent flux of particle and the kinetic energy of the ExB drift when the ion heating parameter q0iat the layer boundary increases from 0 to 0.5 at thetime t = 250 µs.

21. Fig.9Evolution of the turbulent flux of particle and the kinetic energy of the ExB driftwhen the electron heating parameter q0eat the layer boundary increases from 0 to 0.5 at thetime t = 250 µs.

23. References 1. Zeiler A., Drake J.F., Rogers B. // Phys.Plasmas.1997.V.4.P.2134. 2. Simakov A.N., Catto P. J. // Phys.Plasmas.2003.V.10.P.4744. 4. ShuryginR. V.// Fiz. Plazmy 30, 387 (2004) [PlasmaPhys. Rep. 30, 353 (2004)]. 3. Voitsekhovitch I., Garbet X., Benkadda S., Beyer P., Figarella C. // Phys.Plasmas. 2002. V.9. P.4671.