Plasma Stored Energy Analysis during Neutral Beam Injection in the Globus-M2 Tokamak Using the Pet Equilibrium Code and Diamagnetic Measurements
- Authors: Tkachenko E.E.1, Sakharov N.V.1, Kavin A.A.2, Kurskiev G.S.1, Zhil’tsov N.S.1, Miroshnikov I.V.1, Petrov Y.V.1, Minaev V.B.1, Bakharev N.N.1, Kiselev E.O.1, Novokhatskii A.N.1, Mineev A.B.2, Solokha V.V.1, Tel’nova A.Y.1, Tyukhmeneva E.A.1, Khromov N.A.1, Shchegolev P.B.1
- 
							Affiliations: 
							- Ioffe Institute, Russian Academy of Sciences
- JSC “NIIEFA”
 
- Issue: Vol 49, No 12 (2023)
- Pages: 1308-1316
- Section: TOKAMAKS
- URL: https://ruspoj.com/0367-2921/article/view/668889
- DOI: https://doi.org/10.31857/S0367292123600991
- EDN: https://elibrary.ru/CFIRYL
- ID: 668889
Cite item
Abstract
The thermal energy stored in plasma Wp, normalized internal plasma inductance li and current
beta bi are calculated via the free-boundary equilibrium PET code. The equilibrium reconstruction algorithm
is iterative method of minimizing two parameters, the distance between the reconstructed plasma
boundary and that simulated by the PET code, as well as the difference between the plasma diamagnetic flux
from PET and the experimental one. The discharges from the Globus-M2 tokamak with a toroidal magnetic
field up to 0.9 T and a plasma current of 0.3–0.4 MA in a mode with auxiliary heating by two atomic injectors
are analyzed. The possibility of using approximate formulas for estimating and is considered. The measured
diamagnetic flux is used to determine bdia  and then to calculate Wdia . The normalized internal plasma
inductance is additionally determined from the measured vertical magnetic field under the assumption that bp=bdia.
About the authors
E. E. Tkachenko
Ioffe Institute, Russian Academy of Sciences
							Author for correspondence.
							Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
N. V. Sakharov
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
A. A. Kavin
JSC “NIIEFA”
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
G. S. Kurskiev
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
N. S. Zhil’tsov
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
I. V. Miroshnikov
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
Yu. V. Petrov
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
V. B. Minaev
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
N. N. Bakharev
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
E. O. Kiselev
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
A. N. Novokhatskii
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
A. B. Mineev
JSC “NIIEFA”
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
V. V. Solokha
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
A. Yu. Tel’nova
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
E. A. Tyukhmeneva
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
N. A. Khromov
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
P. B. Shchegolev
Ioffe Institute, Russian Academy of Sciences
														Email: erina.tkachenko@yandex.ru
				                					                																			                												                								St. Petersburg, Russia						
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