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Plasma shut-down with fast impurity puff on ASDEX Upgrade

G. Pautasso, C. Fuchs, O. Gruber, C. F. Maggi, M. Maraschek, T. Pütterich, V. Rohde, C. Wittmann, E. Wolfrum, P. Cierpka, M. Beck, the ASDEX Upgrade Team

Open publisher page 82 citations

Abstract

The massive injection of impurity gas into a plasma has been proved to reduce forces and localized thermal loads caused by disruptions in tokamaks. This mitigation system is routinely used on ASDEX Upgrade to shut down plasmas with a locked mode. The plasma response to impurity injection and the mechanism of reduction of the mechanical forces is discussed in the paper.

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What this paper is about

The massive injection of impurity gas into a plasma has been proved to reduce forces and localized thermal loads caused by disruptions in tokamaks. This mitigation system is routinely used on ASDEX Upgrade to shut down plasmas with a locked mode. The plasma response to impurity injection and the mechanism of reduction of the mechanical forces is discussed in the paper.

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OpenAlex reports 82 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The massive injection of impurity gas into a plasma has been proved to reduce forces and localized thermal loads caused by disruptions in tokamaks. This mitigation system is routinely used on ASDEX Upgrade to shut down plasmas with a locked mode. The plasma response to impurity injection and the mechanism of reduction of the mechanical forces is discussed in the paper.

Key concepts: ASDEX Upgrade, Tokamak, Plasma, Impurity, Shut down, Materials science, Nuclear engineering, Atomic physics

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