Passing particle toroidal precession induced by electric field in a tokamak

Characteristics of a rotation of passing particles in a tokamak with radial electric field are calculated. The expression for time-averaged toroidal velocity of the passing particle induced by the electric field is derived. The electric-field-induced additive to the toroidal velocity of the passing particle appears to be much smaller than the velocity of the electric drift calculated for the poloidal magnetic field typical for the trapped particle. This quantity can even have the different sign depending on the azimuthal position of the particle starting point. The unified approach for the calculation of the bounce period and of the time-averaged toroidal velocity of both trapped and passing particles in the whole volume of plasma column is presented. The results are obtained analytically and are confirmed by 3D numerical calculations of the trajectories of charged particles. © 2013 AIP Publishing LLC.

Авторы
Редакторы
-
Журнал
Издательство
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Номер выпуска
12
Язык
Английский
Страницы
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Статус
Опубликовано
Подразделение
-
Номер
122502
Том
20
Год
2013
Организации
  • 1 Peoples' Friendship University of Russia, Ordzhonikidze St. 3, Moscow 117198, Russian Federation
  • 2 NRC Kurchatov Institute, Kurchatov Sq. 1, Moscow 123182, Russian Federation
Ключевые слова
Azimuthal position; Electric drift; Numerical calculation; Plasma columns; Poloidal magnetic field; Radial electric field; Trapped particle; Unified approach; Electric fields; Velocity; Magnetoplasma
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1951/