The role of edge fueling in determining the pedestal density in high neutral opacity Alcator C-Mod experiments
Sign Up to like & getrecommendations! Published in 2021 at "Nuclear materials and energy"
DOI: 10.1016/j.nme.2021.100971
Abstract: Abstract SOLPS-ITER modeling of EDA H-mode experiments on Alcator C-Mod find that the electron density pedestal structure is unaffected by increased gas fueling when approaching ITER-like opaqueness conditions. SOLPS-ITER simulations show a decrease in the… read more here.
Keywords: decrease neutral; pedestal density; density; penetration depth ... See more keywords
Experimental evidence of lower hybrid wave scattering in Alcator C-Mod due to scrape off layer density fluctuations
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/ab16a2
Abstract: We present new experimental measurements of the Lower Hybrid (LH) wave electric field vector, ELH , obtained in Alcator C-Mod and provide a direct comparison with 3D full-wave COMSOL simulations using the cold plasma dielectric… read more here.
Keywords: hybrid wave; lower hybrid; density; scrape layer ... See more keywords
Machine learning for disruption warnings on Alcator C-Mod, DIII-D, and EAST
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DOI: 10.1088/1741-4326/ab1df4
Abstract: This paper reports on disruption prediction using a shallow machine learning method known as a random forest, trained on large databases containing only plasma parameters that are available in real-time on Alcator C-Mod, DIII-D, and… read more here.
Keywords: time; disruption; alcator mod; diii ... See more keywords
I-mode pedestal relaxation events in the Alcator C-Mod and ASDEX Upgrade tokamaks
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DOI: 10.1088/1741-4326/ac4296
Abstract: 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… read more here.
Keywords: energy; relaxation events; alcator mod; asdex upgrade ... See more keywords