Synthetic Diagnostic of Spectra of Charge-Exchange Atoms for Analysis of Influence of the MHD Instability on Fast-Particle Confinement in Spherical Tokamaks Globus-M/M2

• Published in: Plasma physics reports Vol. 49; no. 12; pp. 1490 - 1500
• Main Authors: Kiselev, E. O., Balachenkov, I. M., Bakharev, N. N., Varfolomeev, V. I., Voronin, A. V., Goryainov, V. Yu, Gusev, V. K., Zhiltsov, N. S., Zenkova, O. A., Kurskiev, G. S., Melnik, A. D., Minaev, V. B., Miroshnikov, I. V., Patrov, M. I., Petrov, Yu. V., Sakharov, N. V., Skrekel, O. M., Telnova, A. Yu, Tkachenko, E. E., Tokarev, V. A., Tukhmeneva, E. A., Khromov, N. A., Chernyshov, F. V., Shchegolev, P. B.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2023; Springer Nature B.V
• Subjects: Atomic; Charge exchange; Confinement; Deceleration; Distribution functions; Mathematical analysis; Molecular; Optical and Plasma Physics; Physics; Physics and Astronomy; Stability analysis; Tokamak devices; Tokamaks; NUBEAM; neutral particle beams; spherical tokamak; FIDASIM; charge exchange atom analyzer; high-temperature plasma
• ISSN: 1063-780X; 1562-6938
• DOI: 10.1134/S1063780X23601621

Absorbed power of the neutral-injection beam in spherical tokamaks Globus-M/M2 is estimated numerically. Deceleration of fast particles is simulated by means of the NUBEAM code. The signal of analyzer of charge-exchange atoms is simulated by means of the FIDASIM code using the distribution function of fast ions calculated by means of the NUBEAM code. Comparison of calculated and experimental signals allowed determining the degree of influence of instabilities on confinement of fast particles along with absorbed beam power.