Free-Boundary Plasma Equilibrium Computation
in Spherical Globus-M2 Tokamak by Means of the pyGSS Code

E. O. Kiselev; Киселев Е. О.; I. M. Balachenkov; Балаченков И. М.; N. N. Bakharev; Бахарев Н. Н.; V. I. Varfolomeev; Варфоломеев В. И.; V. K. Gusev; Гусев В. К.; N. S. Zhiltsov; Жильцов Н. С.; O. A. Zenkova; Зенкова О. А.; A. A. Kavin; Кавин А. А.; G. S. Kurskiev; Курскиев Г. С.; V. B. Minaev; Минаев В. Б.; I. V. Miroshnikov; Мирошников И. В.; M. I. Patrov; Патров М. И.; Yu. V. Petrov; Петров Ю. В.; N. V. Sakharov; Сахаров Н. В.; O. M. Skrekel; Скрекель О. М.; V. V. Solokha; Солоха В. В.; A. Yu. Telnova; Тельнова А. Ю.; E. E. Tkachenko; Ткаченко Е. Е.; V. A. Tokarev; Токарев В. А.; E. A. Tukhmeneva; Тюхменева Е. А.; N. A. Khromov; Хромов Н. А.; P. B. Shchegolev; Щеголев П. Б.

doi:10.31857/S0367292123601224

Free-Boundary Plasma Equilibrium Computation in Spherical Globus-M2 Tokamak by Means of the pyGSS Code

Authors: Kiselev E.O.¹^,2, Balachenkov I.M.¹, Bakharev N.N.¹, Varfolomeev V.I.¹, Gusev V.K.¹, Zhiltsov N.S.¹, Zenkova O.A.¹^,2, Kavin A.A.³, Kurskiev G.S.¹, Minaev V.B.¹, Miroshnikov I.V.¹, Patrov M.I.¹, Petrov Y.V.¹, Sakharov N.V.¹, Skrekel O.M.¹, Solokha V.V.¹, Telnova A.Y.¹, Tkachenko E.E.¹, Tokarev V.A.¹, Tukhmeneva E.A.¹, Khromov N.A.¹, Shchegolev P.B.¹
Affiliations:
1. Ioffe Institute, Russian Academy of Sciences
2. Peter the Great St. Petersburg Polytechnic University
3. Efremov Institute of Electrophysical Apparatus
Issue: Vol 49, No 12 (2023)
Pages: 1357-1374
Section: ТОКАМАКИ
URL: https://journals.rcsi.science/0367-2921/article/view/233150
DOI: https://doi.org/10.31857/S0367292123601224
EDN: https://elibrary.ru/CHJYYZ
ID: 233150

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Abstract
About the authors
References
Supplementary files
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Abstract

The pyGSS code constructed for computation of free-boundary plasma equilibrium in spherical
Globus-M2 tokamak is described. Currents in the coils of the electromagnetic system, their coordinates,
plasma current, positions of the limiter and current-conducting wall, etc., are used as the input parameters.
Free parameters determining spatial distribution of equilibrium pressure and current density are selected in
the course of code execution in such a way that the results of reconstruction would agree with the experimental
measurements of the poloidal magnetic flux by means of toroidally closed loops. The results of computation
of equilibrium are compared with those obtained by means of other codes and experimentally measured
thermal plasma energy, position of the separatrix outer leg, the diamagnetic-loop signal, etc.

Keywords

spherical tokamak, high-temperature plasma, equilibrium, Grad–Shafranov equation

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