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physics.plasm-ph2025
Gas puff imaging of plasma turbulence in the magnetic island scrape-off layer of W7-X
S. G. Baek, S. Ballinger, O. Grulke +5
The turbulence characteristics of the scrape-off-layer (SOL) plasma in the W7-X stellarator are investigated using a gas-puff-imaging (GPI) diagnostic, newly installed and operated…
physics.plasm-ph2024
DEGAS 2 model validation study: comparison of measured and modeled helium and deuterium line emission arising from an external gas puff on Alcator C-Mod
S. G. Baek, J. L. Terry, D. P. Stotler +2
The ability to accurately model and predict neutral transport in the boundary plasma is important for tokamak operation. Nevertheless, validation of neutral transport models can be…
physics.plasm-ph2024
The Realization of a Gas Puff Imaging System on the Wendelstein 7-X Stellarator
J. L. Terry, A. von Stechow, S. G. Baek +10
A system for studying the spatio-temporal dynamics of fluctuations in the boundary of the W7-X plasma using the Gas-Puff Imaging (GPI) technique has been designed, constructed, ins…