I-mode pedestal relaxation events in the Alcator C-Mod and ASDEX Upgrade tokamaks

@article{Silvagni2021ImodePR,
  title={I-mode pedestal relaxation events in the Alcator C-Mod and ASDEX Upgrade tokamaks},
  author={Davide Silvagni and J. L. Terry and W. McCarthy and Alan E. Hubbard and Thomas Eich and Michael Faitsch and L. Gil and Theodore Golfinopoulos and G. G. Grenfell and Michael Griener and Tim Happel and J. W. Hughes and U. Stroth and Eleonora Viezzer and the ASDEX Upgrade team and the Eurofusion MST1 Team},
  journal={Nuclear Fusion},
  year={2021},
  volume={62}
}
In some conditions, I-mode plasmas can feature pedestal relaxation events (PREs) that transiently enhance the energy reaching the divertor target plates. To shed light on their appearance, characteristics and energy reaching the divertor targets, a comparative study between two tokamaks — Alcator C-Mod and ASDEX Upgrade — is carried out. It is found that PREs appear only in a subset of I-mode discharges, mainly when the plasma is close to the H-mode transition. Also, a growing oscillating… 

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References

SHOWING 1-4 OF 4 REFERENCES

EUROfusion IDM (https://idm.euro-fusion.org/ ?uid=2NT9PE

  • 2019

( the ITPA CDBMH - mode Threshold Data Group )

  • Rev . Sci . Instrum .
  • 2003

Probabilistic Inference of Surface Heat Flux Densities from Infrared Thermography Bayesian Inference and Maximum

  • Entropy Methods in Science and Engineering
  • 2018

et al ( ASDEX Upgrade Team )

  • Stroth U . 2018 Rev . Sci . Instrum .
  • 2011