Initial analytical theory of plasma disruption and experimental evidence

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Abstract

It is a great physical challenge to achieve controlled nuclear fusion in magnetic confinement tokamak and solve energy shortage problem for decades. In tokamak plasma, large-scale plasma instability called disruption will halt power production of reactor and damage key components. Prediction and prevention of plasma disruption is extremely urgent and important. However, there is no analytical theory can elucidate plasma disruption physical mechanism yet. Here we show an analytical theory of tokamak plasma disruption based on nonextensive geodesic acoustic mode theory, which can give the physical mechanism of disruption. The proposed theory has not only been confirmed by experimental data of disruption on T-10 device, but also can explain many related phenomena around plasma disruption, filling the gap in physical mechanism of tokamak plasma disruption.

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Qiu, H., Hu, Z., Wu, S., Chen, J., Zhong, C., Wu, J., … Yuan, Y. (2023). Initial analytical theory of plasma disruption and experimental evidence. Scientific Reports, 13(1). https://doi.org/10.1038/s41598-023-36504-7

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