Hot Ion Mode in the Globus-M2 Spherical Tokamak

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NBI-assisted plasma heating with one or two injectors of fast neutral atoms was studied at the Globus-M2 spherical tokamak at the toroidal magnetic fields of 0.8–0.9 T and plasma currents of 0.35–0.4 MA. Measurements of the spatial temperature and electron density distributions, performed using the Thomson scattering diagnostics, showed a twofold increase in heating of plasma electrons during the injection of neutral particles with energies of up to 45 keV at the beam power of 0.75 MW, as compared to the ohmic heating regime. Switching on the second additional beam with the particle energy of up to 30 keV and power of up to 0.5 MW resulted in obtaining the hot ion mode in the range of mean plasma densities of (1.6–10) × 1019 m−3. According to the data of active spectroscopy and neutral particle analyzer diagnostics, in the hot zone, the ion temperature reached 4 keV at the plasma density of 8 × 1019 m−3, which is more than 2.5 times higher than the electron temperature.

作者简介

A. Yashin

Ioffe Institute, Russian Academy of Sciences; Peter the Great St. Petersburg Polytechnic University

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia; St. Petersburg, 195251 Russia

V. Solovei

NRC “Kurchatov Institute” – PNPI

Email: golubev_ma@pnpi.nrcki.ru
Russia, 188300, Gatchina

O. Skrekel’

Ioffe Institute, Russian Academy of Sciences

Email: min-anat@mail.ru
St. Petersburg, Russia

A. Ponomarenko

Peter the Great St. Petersburg Polytechnic University

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 195251 Russia

A. Petrov

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
194021, St. Petersburg, Russia

M. Patrov

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

A. Novokhatsky

Ioffe Institute, Russian Academy of Sciences

Email: Nikolay.Khromov@mail.ioffe.ru
St. Petersburg, 194021 Russia

A. Mineev

JSC “Efremov Scientific Research Institute of Electrophysical Apparatus”(NIIEFA)

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 196641 Russia

A. Melnik

Ioffe Institute, Russian Academy of Sciences

Email: bakharev@mail.ioffe.ru
St. Petersburg, 194021 Russia

V. Solokha

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

E. Tkachenko

Ioffe Institute, Russian Academy of Sciences

Email: min-anat@mail.ru
St. Petersburg, Russia

K. Shulyat’ev

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

A. Shevelev

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

F. Chernyshev

Ioffe Institute, Russian Academy of Sciences

Email: bakharev@mail.ioffe.ru
St. Petersburg, 194021 Russia

N. Khromov

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

E. Khil’kevich

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

E. Tukhmeneva

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

S. Tolstyakov

Ioffe Institute

Email: ermafin@gmail.com
St. Petersburg, Russia

V. Tokarev

Ioffe Institute, Russian Academy of Sciences

Email: min-anat@mail.ru
St. Petersburg, Russia

K. Lobanov

Efremov Research Institute of Electrophysical Equipment

Email: gleb.kurskiev@mail.ioffe.ru
196641, St. Petersburg, Russia

S. Krikunov

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

A. Konovalov

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

E. Kiselev

Ioffe Institute, Russian Academy of Sciences

Email: pkorenev@ipu.ru
St. Petersburg, Russia

N. Bakharev

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

A. Tel’nova

Ioffe Institute, Russian Academy of Sciences

Email: min-anat@mail.ru
St. Petersburg, Russia

Yu. Petrov

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

I. Miroshnikov

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

V. Minaev

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

V. Gusev

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

N. Sakharov

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

N. Zhil’tsov

Ioffe Institute, Russian Academy of Sciences

Email: min-anat@mail.ru
St. Petersburg, Russia

P. Shchegolev

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

A. Kavin

Ioffe Institute, Russian Academy of Sciences

Email: gleb.kurskiev@mail.ioffe.ru
194021, St. Petersburg, Russia

M. Il’yasova

Ioffe Institute, Russian Academy of Sciences

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194064 Russia

E. Zhilin

“Ioffe Fusion Technology,”

Email: yu.petrov@mail.ioffe.ru
St. Petersburg, 194021 Russia

V. D’yachenko

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

V. Goryainov

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

A. Voronin

Ioffe Institute, Russian Academy of Sciences

Email: nightkeo@gmail.com
St. Petersburg, 194021 Russia

V. Varfolomeev

Ioffe Institute, Russian Academy of Sciences

Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

I. Balachenkov

Ioffe Institute, Russian Academy of Sciences

Email: pkorenev@ipu.ru
St. Petersburg, Russia

G. Kurskiev

Ioffe Institute, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: Vladimir.Minaev@mail.ioffe.ru
Saint Petersburg, 194021 Russia

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