Nonaxisymmetric energy deposition pattern on ASDEX Upgrade divertor target 
plates during Type-I edge-localized modes

Eich, T.; Herrmann, A.; Neuhauser, J.; ASDEX Upgrade Team,

doi:10.1103/PhysRevLett.91.195003

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Nonaxisymmetric energy deposition pattern on ASDEX Upgrade divertor target plates during Type-I edge-localized modes

MPS-Authors

/persons/resource/persons109017

Eich, T.
Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society;

/persons/resource/persons109371

Herrmann, A.
Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society;

ASDEX Upgrade Team,
Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Eich, T., Herrmann, A., Neuhauser, J., & ASDEX Upgrade Team (2003). Nonaxisymmetric energy deposition pattern on ASDEX Upgrade divertor target plates during Type-I edge-localized modes. Physical Review Letters, 91(19): 195003. doi:10.1103/PhysRevLett.91.195003.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-3C8A-A

Abstract

In the ASDEX Upgrade tokamak, complex power deposition structures on the divertor target plates during type-I edge-localized modes (ELMs) have been discovered by fast (few microseconds), two-dimensional (40×40 cm²) infrared thermography. In addition to the usual axisymmetric power deposition line near the separatrix, there appear, statistically distributed, several laterally displaced and inclined stripes, mostly well separated from each other and from the main strike zone. These structures are interpreted as footprints of approximately field aligned, helical perturbations at the low field side of the main plasma edge related to the nonlinear ELM evolution. Based on this picture, the ELM related mode structure can be derived from the target load pattern, yielding on average toroidal mode numbers in a range of 8–24.