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The Magnetic Energy Flow During Plasma Disruptions in J-TEXT

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Abstract

The magnitude of the damaging effects on the vacuum vessel (VV) components caused by the plasma disruptions increases with the quantity of the thermal energy and poloidal magnetic energy dissipated inside the VV. This paper focuses on the poloidal magnetic energy flow across the VV during the plasma disruptions in J-TEXT tokamak, which helps to calculate the quantity of the magnetic energy dissipated inside the VV (W dis ). The value of W dis can be used to evaluate the relevant damage. W dis equals the initial magnetic energy stored inside the VV before disruption (W ini ) plus the magnetic energy flowing into the VV during disruption (ΔW flow ). W ini is calculated by a Maxwell simulation model while ΔW flow is measured based on the Poynting theory. W ini takes 52 % of the total magnetic energy (W tot ) while ΔW flow takes 43.3 % according to the measurement results, leading to 95.3 % of the W tot dissipating inside the VV during disruption. The characteristic of the magnetic energy flow and its analyzing method in J-TEXT provide reference for the other fusion devices.

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Acknowledgments

This work is supported by the National ITER Project of China (No. 2013GB113003) and the Fundamental Research Funds for the Central Universities, HUST: cx-15-061.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China

    Ming Zhang, Jun Zhang, Bo Rao, Xiaolong Li, Wendi Xu, Xiang Jian, Fuming Li, Zhipeng Chen, Kexun Yu & Yuan Pan

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  1. Ming Zhang
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  2. Jun Zhang
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  3. Bo Rao
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  4. Xiaolong Li
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  5. Wendi Xu
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  6. Xiang Jian
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  7. Fuming Li
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  8. Zhipeng Chen
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  9. Kexun Yu
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  10. Yuan Pan
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Correspondence to Ming Zhang.

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Zhang, M., Zhang, J., Rao, B. et al. The Magnetic Energy Flow During Plasma Disruptions in J-TEXT. J Fusion Energ 34, 1411–1416 (2015). https://doi.org/10.1007/s10894-015-9985-5

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  • DOI: https://doi.org/10.1007/s10894-015-9985-5

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