Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber

Abstract

The article presents and discusses works on achieving ohmic breakdown at the KTM tokamak. The vacuum chamber of the KTM tokamak has a number of design features that significantly distinguish it from other installations - massive low-resistance vacuum chamber with unevenly distributed elements. The first experiments showed that the presence of massive asymmetrically distributed conductive elements of the KTM vacuum chamber leads to the complexity and inaccuracy of modeling the induced eddy currents and, accordingly, to the inaccuracy of calculating the field null configuration. Due to the limited value of the toroidal electric field of about 1.6 V / m and the toroidal magnetic field of 1 T, there are high requirements for the value of the stray poloidal magnetic field in the breakdown region for its implementation. So, it was required to carry out comprehensive work to achieve a breakdown at the KTM tokamak.

Original language	English
Article number	112167
Journal	Fusion Engineering and Design
Volume	163
DOIs	https://doi.org/10.1016/j.fusengdes.2020.112167
Publication status	Published - Feb 2021

Keywords

Experimental data
Modelling
Plasma
Tokamak

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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Chektybayev, B., Sadykov, A., Batyrbekov, E., Skakov, M., Zarva, D., Tazhibayeva, I., Korovikov, A., Kashikbayev, Y., Olkhovik, D., Savkin, V., Khvostenko, P., Belbas, I., Sergeyev, D., Kavin, Lee, & Pavlov, V. (2021). Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber. Fusion Engineering and Design, 163, [112167]. https://doi.org/10.1016/j.fusengdes.2020.112167

Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber. / Chektybayev, B.; Sadykov, A.; Batyrbekov, E.; Skakov, M.; Zarva, D.; Tazhibayeva, I.; Korovikov, A.; Kashikbayev, Ye; Olkhovik, D.; Savkin, V.; Khvostenko, P.; Belbas, I.; Sergeyev, D.; Kavin; Lee, ; Pavlov, V.

In: Fusion Engineering and Design, Vol. 163, 112167, 02.2021.

Research output: Contribution to journal › Article › peer-review

Chektybayev, B, Sadykov, A, Batyrbekov, E, Skakov, M, Zarva, D, Tazhibayeva, I, Korovikov, A, Kashikbayev, Y, Olkhovik, D, Savkin, V, Khvostenko, P, Belbas, I, Sergeyev, D, Kavin, Lee, & Pavlov, V 2021, 'Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber', Fusion Engineering and Design, vol. 163, 112167. https://doi.org/10.1016/j.fusengdes.2020.112167

Chektybayev, B. ; Sadykov, A. ; Batyrbekov, E. ; Skakov, M. ; Zarva, D. ; Tazhibayeva, I. ; Korovikov, A. ; Kashikbayev, Ye ; Olkhovik, D. ; Savkin, V. ; Khvostenko, P. ; Belbas, I. ; Sergeyev, D. ; Kavin ; Lee, ; Pavlov, V. / Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber. In: Fusion Engineering and Design. 2021 ; Vol. 163.

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title = "Study of breakdown and plasma formation in the KTM tokamak with the massive conductive vacuum chamber",

abstract = "The article presents and discusses works on achieving ohmic breakdown at the KTM tokamak. The vacuum chamber of the KTM tokamak has a number of design features that significantly distinguish it from other installations - massive low-resistance vacuum chamber with unevenly distributed elements. The first experiments showed that the presence of massive asymmetrically distributed conductive elements of the KTM vacuum chamber leads to the complexity and inaccuracy of modeling the induced eddy currents and, accordingly, to the inaccuracy of calculating the field null configuration. Due to the limited value of the toroidal electric field of about 1.6 V / m and the toroidal magnetic field of 1 T, there are high requirements for the value of the stray poloidal magnetic field in the breakdown region for its implementation. So, it was required to carry out comprehensive work to achieve a breakdown at the KTM tokamak.",

keywords = "Experimental data, Modelling, Plasma, Tokamak",

author = "B. Chektybayev and A. Sadykov and E. Batyrbekov and M. Skakov and D. Zarva and I. Tazhibayeva and A. Korovikov and Ye Kashikbayev and D. Olkhovik and V. Savkin and P. Khvostenko and I. Belbas and D. Sergeyev and Kavin and Lee and V. Pavlov",

note = "Funding Information: The work was carried out within the framework of the Republican budget program 0061/PCF of the Ministry of Energy of the Republic of Kazakhstan, as well as with the grant support of the Ministry of Science and Higher Education of the Russian Federation , agreement of grant nomination No. 075-15-2019-1456 of October 2, 2019, (internal number of Agreement 05.613.21.0089, unique identifier of agreement RFMEFI61319 × 0089) within the framework of the international Atom-CIS program. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

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AU - Chektybayev, B.

AU - Sadykov, A.

AU - Batyrbekov, E.

AU - Skakov, M.

AU - Zarva, D.

AU - Tazhibayeva, I.

AU - Korovikov, A.

AU - Kashikbayev, Ye

AU - Olkhovik, D.

AU - Savkin, V.

AU - Khvostenko, P.

AU - Belbas, I.

AU - Sergeyev, D.

AU - Kavin,

AU - Lee,

AU - Pavlov, V.

N1 - Funding Information: The work was carried out within the framework of the Republican budget program 0061/PCF of the Ministry of Energy of the Republic of Kazakhstan, as well as with the grant support of the Ministry of Science and Higher Education of the Russian Federation , agreement of grant nomination No. 075-15-2019-1456 of October 2, 2019, (internal number of Agreement 05.613.21.0089, unique identifier of agreement RFMEFI61319 × 0089) within the framework of the international Atom-CIS program. Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/2

Y1 - 2021/2

N2 - The article presents and discusses works on achieving ohmic breakdown at the KTM tokamak. The vacuum chamber of the KTM tokamak has a number of design features that significantly distinguish it from other installations - massive low-resistance vacuum chamber with unevenly distributed elements. The first experiments showed that the presence of massive asymmetrically distributed conductive elements of the KTM vacuum chamber leads to the complexity and inaccuracy of modeling the induced eddy currents and, accordingly, to the inaccuracy of calculating the field null configuration. Due to the limited value of the toroidal electric field of about 1.6 V / m and the toroidal magnetic field of 1 T, there are high requirements for the value of the stray poloidal magnetic field in the breakdown region for its implementation. So, it was required to carry out comprehensive work to achieve a breakdown at the KTM tokamak.

AB - The article presents and discusses works on achieving ohmic breakdown at the KTM tokamak. The vacuum chamber of the KTM tokamak has a number of design features that significantly distinguish it from other installations - massive low-resistance vacuum chamber with unevenly distributed elements. The first experiments showed that the presence of massive asymmetrically distributed conductive elements of the KTM vacuum chamber leads to the complexity and inaccuracy of modeling the induced eddy currents and, accordingly, to the inaccuracy of calculating the field null configuration. Due to the limited value of the toroidal electric field of about 1.6 V / m and the toroidal magnetic field of 1 T, there are high requirements for the value of the stray poloidal magnetic field in the breakdown region for its implementation. So, it was required to carry out comprehensive work to achieve a breakdown at the KTM tokamak.

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KW - Modelling

KW - Plasma

KW - Tokamak

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