Отправить статью по E-mail Improvement of plasma energy confinement in tokamak under radiative cooling of the edge plasma
- Авторы: Razumova K.A.1, Borschegovskiy A.A.1, Gorbunov E.P.1, Dremin M.M.1, Kasyanova N.V.1, Kirneva N.A.1,2, Kislov A.Y.1, Klyuchnikov L.A.1, Krupin V.A.1, Krylov S.V.1, Lysenko S.E.1, Melnikov A.V.1,2, Myalton T.B.1, Nemets A.R.1, Notkin G.E.1, Nurgaliev M.R.1, Sarychev D.V.1, Sushkov A.V.1, Chistyakov V.V.1, Ongena J.3, Messiaen A.3
-
Учреждения:
- National Research Center “Kurchatov Institute,”
- National Research Nuclear University “MEPhI,”
- Laboratory for Plasma Physics–ERM/KMS
- Выпуск: Том 43, № 11 (2017)
- Страницы: 1043-1051
- Раздел: Tokamaks
- URL: https://journals.rcsi.science/1063-780X/article/view/186271
- DOI: https://doi.org/10.1134/S1063780X1711006X
- ID: 186271
Цитировать
Открытый доступ
Доступ предоставлен
Только для подписчиков
Аннотация
Improvement of plasma energy confinement in the T-10 tokamak by injection of impurity gases was studied experimentally. Injection of Ne and He in the ohmic and ECR heating regimes allows one to separate the dependences of energy confinement on the plasma density and on the edge plasma cooling rate. It is shown that the well-known dependence of the energy confinement time on the plasma density is, in fact, the dependence on the radiative loss power. This phenomenon can be explained by plasma self-organization. The experiments are described by a thermodynamic model for self-organized plasma in which the transport coefficient depends on the difference between the actual and self-consistent pressure profiles. The reduction in the heat flux at the plasma edge due to radiative cooling leads to a decrease in the transport coefficient in this region and, accordingly, improves energy confinement. Results of approximate model calculations for experiments with Ne injection are presented.
Об авторах
K. Razumova
National Research Center “Kurchatov Institute,”
Автор, ответственный за переписку.
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
A. Borschegovskiy
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
E. Gorbunov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
M. Dremin
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
N. Kasyanova
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
N. Kirneva
National Research Center “Kurchatov Institute,”; National Research Nuclear University “MEPhI,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182; Moscow, 115409
A. Kislov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
L. Klyuchnikov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
V. Krupin
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
S. Krylov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
S. Lysenko
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
A. Melnikov
National Research Center “Kurchatov Institute,”; National Research Nuclear University “MEPhI,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182; Moscow, 115409
T. Myalton
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
A. Nemets
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
G. Notkin
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
M. Nurgaliev
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
D. Sarychev
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
A. Sushkov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
V. Chistyakov
National Research Center “Kurchatov Institute,”
Email: Razumova_KA@nrcki.ru
Россия, Moscow, 123182
J. Ongena
Laboratory for Plasma Physics–ERM/KMS
Email: Razumova_KA@nrcki.ru
Бельгия, Brussels
A. Messiaen
Laboratory for Plasma Physics–ERM/KMS
Email: Razumova_KA@nrcki.ru
Бельгия, Brussels
Дополнительные файлы
