Soft x-ray tomograms are consistent with the magneto-hydrodynamic equilibrium in the Wendelstein 7-X stellarator | Zendy

J. Schilling | Zendy; H. Thomsen | Zendy; C. Brandt | Zendy; S. Kwak | Zendy; J. Svensson | Zendy

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Soft x-ray tomograms are consistent with the magneto-hydrodynamic equilibrium in the Wendelstein 7-X stellarator

Author(s) -

J. Schilling,

H. Thomsen,

C. Brandt,

S. Kwak,

J. Svensson

Publication year - 2021

Publication title -

plasma physics and controlled fusion

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.328

H-Index - 111

eISSN - 1361-6587

pISSN - 0741-3335

DOI - 10.1088/1361-6587/abe0fa

Subject(s) - stellarator , wendelstein 7 x , physics , imaging phantom , tomography , epicardial fat , computational physics , plasma , nuclear physics , optics , medicine , adipose tissue , endocrinology

Soft x-ray tomograms are inferred from experimental data obtained during the recent operational phases of the superconducting, optimized stellarator Wendelstein 7-X. It is shown that the reconstructed soft x-ray emission profiles of the plasma are consistent with the numerically calculated magneto-hydrodynamic equilibrium of Wendelstein 7-X. In order to obtain reliable tomograms, the full chain of electrical and geometrical influences on the x-ray observation has to be taken into account. This has been achieved by formulation and application of an extended forward model. The forward model has been verified using phantom data derived from surrogate tomograms.

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