Open AccessNTM threshold island width measurements on Globus-M based on the Fitzpatrick heat transport model
Author(s) -
Alexandra Dudkovskaia,
М. И. Патров,
V. K. Gusev,
Е. О. Киселев,
Г. С. Курскиев
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/7/077039
Subject(s) - astra , work (physics) , physics , materials science , thermodynamics , nuclear physics
We estimate the neoclassical tearing mode (NTM) threshold island width, W c , associated with the bootstrap current contribution to the time evolution of the magnetic island. Following the original work by Fitzpatrick, we solve the heat transport equation for the electron temperature distribution with W c being the input parameter. The obtained model temperature profile is then fitted to the Globus-M Thomson scattering (TS) data to deduce the actual W c value. Due to the relatively low resolution of the Globus-M TS in the island region, we have also adopted ASTRA to provide the benchmarking.