Kulyk Y. Numerical modelling of the radio-frequency plasma production in stellarators

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0424U000072

Thesis Registration Form

0424U000072.pdf

Applicant for

Yuliia S. Kulyk

Specialization

01.04.08 - Фізика плазми

Date of defense

15-03-2024

Specialized Academic Board

Д 64.051.12

V.N. Karazin Kharkiv National University

Essay

The thesis presents a new qualitative technique for analyzing the efficiency of plasma production by radio-frequency fields in the ion cyclotron range of frequencies using antenna systems within which only the solution of the boundary value problem for Maxwell's equations is required. With the help of this technique, theoretical studies of radio-frequency plasma production in the Uragan-2M stellarator were carried out. A self-consistent model for radio-frequency plasma production in the ion cyclotron range of frequencies, which allows simulating the evolution of the density and temperature profiles of plasma electrons due to the influence of radio-frequency fields together with neutral gas burnout, was developed. With the help of this model, calculations of radio-frequency plasma production in the Uragan-2M stellarator for frame and four-strap antenna systems were made. Theoretical studies of the ability of the four-strap antenna to increase the plasma density in the Uragan-2M stellarator were also conducted. The scenario of radio-frequency discharge in the short-pulse mode is considered. An updated self-consistent one-dimensional numerical code was used to study the discharge, with the help of which optimization of the cleaning discharge for a large-sized stellarator was carried out. The results of numerical modelling of a short-pulse discharge for electron cyclotron plasma heating are presented. For this study, a molecular model that includes all collision processes and is effective at all stages of plasma production in the stellarator was developed. With the help of this model, numerical calculations for single pulses were carried out, and the multi-pulse periodic mode for the Wendelstein 7-X stellarator was also investigated.

Thesis supervisor

Volodymyr E. Moiseenko

Official opponents

Vadym V. Lutsenko
Vyacheslav V. Tsiolko

Research papers

1. Moiseenko, V.E., Stadnik, Yu.S., Lyssoivan, A.I. (2012) Self-Consistent Modelling of Plasma Density Increase with Radio-Frequency Heating. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (82), pp. 46-48.

2. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2014) Numerical Modelling of Plasma Production with Radio-Frequency Heating Using Four-Strap π-Phased Antenna. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (94), pp. 30-33.

3. Moiseenko, V.E., Kulyk, Yu.S., Wauters, T., Lyssoivan, A.I. (2015) Optimization of Self-Consistent Code for Modelling of RF Plasma Production. Problems of Atomic Science and Technology, Ser.: Plasma Physics 1 (21), pp. 56-58.

4. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2021) Modelling of Radio-Frequency Wall Conditioning in Short Pulses in a Stellarator. Problems of Atomic Science and Technology, Ser.: Plasma Physics 1 (131), pp. 9-14.

5. Moiseenko, V.E., Stadnik, Yu.S., Stepanov, K.N., Shvets, O.M., Volkov, E.D., Tereshin, V.I (2007) RF Plasma Production in Uragan-2M Torsatron. AIP Conference Proceedings 933, pp. 115-118. American Institute of Physics.

6. Moiseenko, V.E., Berezhnyj, V.L., Bondarenko, V.N., Burchenko, P.Ya., Castejón, F., Chechkin, V.V., Chernyshenko, V.Ya., Dreval, M.B., Garkusha, I.E., Glazunov, G.P., Grigor`eva, L.I., Hartmann, D., Hidalgo, C., Koch, R., Konovalov, V.G., Kotsubanov, V.D., Kramskoi, Ye.D., Kulaga, A.E., Lozin, A.V., Lyssoivan, A.I., Mironov, V.K., Mysiura, I.N., Pavlichenko, R.O., Pashnev, V.K., Romanov, V.S., Shapoval, A.N., Skibenko, A.I., Slavnyi, A.S., Sorokovoy, E.L., Stadnik, Yu.S., Taran, V.S., Tereshin, V.I. and Voitsenya, V.S. (2011) RF Plasma Production and Heating Below Ion-Cyclotron Frequencies in Uragan Torsatrons. Nuclear Fusion 51 (8), 083036.

7. Moiseenko, V.E., Stadnik, Yu.S., Lyssoivan, A.I., Korovin, V.B. (2013) Self-Consistent Modeling of Radio-Frequency Plasma Generation in Stellarators. Plasma Physics Reports 39 (11), pp. 873–881.

8. Moiseenko, V.E., Stadnik, Yu.S., Volkov, E.D., Svets, O.M. (2006) Numerical Modelling of RF Plasma Production in Uragan-2M Stellarator with Crankshaft Antenna. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (12), pp. 62-64.

9. Moiseenko, V.E., Stadnik, Yu.S., Lyssoivan, A.I., Dreval, M.B. (2010) Self-consistent Model of the RF Plasma Production in Stellarator. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (16), pp. 21-23.

10. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2016) Radio-Frequency Wall Conditioning for Steady-State Stellarators. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (106), pp. 56-59.

11. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2018) A Numerical Model of Radio-Frequency Wall Conditioning for Steady-State Stellarators. Problems of Atomic Science and Technology, Ser.: Plasma Physics 6 (118), pp. 46-49.

12. Moiseenko, V.E., Stadnik, Yu.S., Volkov, E.D., Shvets, O.M. (2006) Numerical Modelling of RF Plasma Production in Uragan-2M Stellarator with Crankshaft Antenna. In 11-th International Conference and School on Plasma Physics and Controlled Fusion and 2-nd Alushta International Workshop on the Role of Electric Fields in Plasma Confinement in Stellarators and Tokamaks. Alushta (Crimea), Ukraine, 11-16 September 2006. Book of Abstracts, p. 57.

13. Moiseenko, V.E., Stadnik, Yu.S., Stepanov, K.N., Shvets, O.M., Volkov, E.D., Tereshin, V.I. (2007) RF Plasma Production in Uragan-2M Torsatron. In 17th Topical Conference on Radio-Frequency Power in Plasma, Clearwater, Florida, USA, 7-9 May 2007, paper b41.

14. Stadnik, Yu.S., Moiseenko, V.E., Stepanov, K.N., Shvets, O.M., Volkov, E.D., Tereshin, V.I. (2007) Theoretical Analysis of RF Plasma Production in Uragan-2M Torsatron. In 34th EPS Conference on Plasma Phys. Warsaw, Poland, 2-6 July 2007. ECA Vol.31F, P-4.157.

15. Moiseenko, V.E., Stadnik, Yu.S., Lyssoivan, A.I., Dreval, M.D. (2010) Self-Consistent Model of the RF Plasma Production in Stellarator. In International Conference and School on Plasma Physics and Controlled Fusion and 4-th Alushta International Workshop on the Role of Electric Fields in Plasma Confinement in Stellarators and Tokamaks. Alushta (Crimea), Ukraine, 13-18 September 2010. Book of Abstracts, p. 52.

16. Moiseenko, V.E., Stadnik, Yu.S., Lyssoivan, A.I. (2012) Self-Consistent Modelling of Plasma Density Increase with Radio-Frequency Heating. In International Conference-School on Plasma Physics and Controlled Fusion and The Adjoint Workshop Nano- and micro-sized structures in plasmas. Alushta (Crimea), Ukraine, 17-22 September 2012. Book of Abstracts, p. 61.

17. Моісеєнко, В.Є., Кулик, Ю.С., Лисойван, А.І. (2013) Самоузгоджене моделювання накопичення плазми за допомогою високочастотного нагріву. In Українська конференція з фізики плазми та керованого термоядерного синтезу 2013. Київ, 24-25 вересня 2013. Тези доповідей, с. 20.

18. Moiseenko, V.E., Kulyk, Yu.S., Wauters, T., Lyssoivan, A.I. (2014) Numerical Modelling of Plasma Production with Radio-Frequency Heating Using Four-Strap π-Phased Antenna. In International Conference-School on Plasma Physics and Controlled Fusion and The Adjoint Workshop Nano- and micro-sized structures in plasmas. Kharkiv, Ukraine, 15-18 September 2014. Book of Abstracts, p. 50.

19. Moiseenko, V.E., Kulyk, Yu.S., Wauters, T., Lyssoivan, A.I. (2014) Optimization of Self-Consistent Code for Modelling of RF Plasma Production. In International Conference-School on Plasma Physics and Controlled Fusion and The Adjoint Workshop Nano- and micro-sized structures in plasmas. Kharkiv, Ukraine, 15-18 September 2014. Book of Abstracts, p. 51.

20. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2015) Radio-Frequency Wall Conditioning for Steady-State Stellarators. In Eighth IAEA Technical Meeting on “Steady State Operation of Magnetic Fusion Devices. Nara, Japan, 24-30 May 2015.

21. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2016) Radio-Frequency Wall Conditioning for Steady-State Stellarators. In International Conference-School on Plasma Physics and Controlled Fusion. Kharkiv, Ukraine, 12-15 September 2016. Book of Abstracts, p. 55.

22. Kulyk, Yu.S., Moiseenko, V.E., Wauters, T., Lyssoivan, A.I. (2018) A Numerical Model of Radio-Frequency Wall Conditioning for Steady-State Stellarators. In International Conference-School on Plasma Physics and Controlled Fusion. Kharkiv, Ukraine, 10-13 September 2018. Book of Abstracts, p. 33.

23. Кулик, Ю.С., Моісеєнко, В.Є., Вотерс, Т., Лисойван, А.І. (2021) Моделювання високочастотного короткоімпульсного розряду в стелараторі. In Українська конференція з фізики плазми та керованого термоядерного синтезу 2021. Київ, 15-16 грудня 2021. Тези доповідей, с. 19, O.We.8 онлайн.

Files

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