Speaker
Mr
Nikolai Bakharev
(Ioffe Institute)
Description
For the first time a high energy counter-NBI was applied in the Globus-M spherical tokamak. The ELM-free H-mode was obtained. However no significant increase in the ion temperature and plasma energy content as compared to ELMy H-mode was observed. This is due to a high level of the fast ion losses (up to 97%), confirmed by modeling with NUBEAM and full 3D fast ion tracking algorithm. Increase in the plasma current from 120 to 200 kA as well as an increase in plasma-wall distance from 3 to 6 cm did not result in the increase of NB heating efficiency as it occurred during the co-NBI experiments. Modeling showed that in Globus-M2 counter-NBI experiments the power absorbed by plasma will be increased by more than an order of magnitude compared to the current experimental conditions.
| Country or International Organization | Russian Federation |
|---|---|
| Paper Number | EX/P4-44 |
Primary author
Mr
Nikolai Bakharev
(Ioffe Institute)
Co-authors
Ms
Alsu Iblyaminova
(Ioffe Institute)
Mr
Andrei Melnik
(Ioffe Institute)
Ms
Anna Telnova
(Ioffe Institute)
Dr
Fedor Chernyshev
(Ioffe Institute)
Mr
Georgiy Zadvitskiy
(Université de Lorraine)
Dr
Gleb Kurskiev
(Ioffe Institute)
Dr
Maxim Mironov
(Ioffe Institute)
Dr
Michael Patrov
(Ioffe Institute)
Dr
Nikolai Sakharov
(Ioffe Institute)
Dr
Pavel Goncharov
(Peter the Great St. Petersburg Polytechnic University)
Mr
Peter Shchegolev
(Ioffe Institute)
Dr
Sergei Tolstyakov
(Ioffe Institute)
Dr
Vasily Gusev
(Ioffe Physical-Technical Institute)
Dr
Vladimir Minaev
(Ioffe Institute)
Dr
Yuriy Petrov
(Ioffe Institute)
