Blar i forfatter "Brunner, Dan"
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Blob shapes in the scrape-off layer: Comparison of measurements to simulations
Kube, Ralph; Garcia, Odd Erik; Theodorsen, Audun; Brunner, Dan; Kuang, Adam; LaBombard, Brian; Terry, Jim L. (Conference object; Konferansebidrag, 2017) -
Outlier classification using autoencoders: Application for fluctuation driven flows in fusion plasmas
Kube, Ralph; Bianchi, Filippo Maria; LaBombard, Brian; Brunner, Dan (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-16)Understanding the statistics of fluctuation driven flows in the boundary layer of magnetically confined plasmas is desired to accurately model the lifetime of the vacuum vessel components. Mirror Langmuir probes (MLPs) are a novel diagnostic that uniquely allow us to sample the plasma parameters on a time scale shorter than the characteristic time scale of their fluctuations. Sudden large-amplitude ... -
Outlier classification using Autoencoders: applications for fluctuation driven flows in fusion plasmas
Kube, Ralph; Bianchi, Filippo Maria; LaBombard, Brian; Brunner, Dan (Conference object; Konferansebidrag, 2018) -
Statistical properties of fluctuation driven flows in the outboard mid-plane SOL of Alcator C-Mod
Kube, Ralph; Garcia, Odd Erik; Theodorsen, Audun; Kuang, Adam; Brunner, Dan; LaBombard, Brian; Terry, Jim L. (Conference object; Konferansebidrag, 2018)The scale length of the radial density profile in scrape-off layer plasmas has been shown to depend on the line-averaged plasma density. While first reported on AlcatorC-Mod, recent work verifies this phenomena in JET and ASDEX Upgrade. In low density plasmas with a sheath-limited SOL, the density profiles present a two-scale structure which allows the separation of the SOL into two distinct regions. ... -
Statistical properties of the plasma fluctuations and turbulent cross-field fluxes in the outboard mid-plane scrape-off layer of Alcator C-Mod
Kube, Ralph; Garcia, Odd Erik; Theodorsen, Audun; Kuang, Adam; LaBombard, Brian; Terry, Jim L.; Brunner, Dan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-29)The Alcator C-Mod mirror Langmuir probe diagnostic is used to characterize plasma fluctuations in the outboard mid-plane scrape-off layer (SOL). Ohmically heated L-mode plasmas with Greenwald fractions from 0.1 to 0.45 are analyzed. In plasmas with a low line-averaged core density, the radial profiles of the average electron density and temperature feature a two-scale structure with a strong gradient ... -
Universality of intermittent fluctuations in the Alcator C-Mod scrape-off layer
Kube, Ralph; Garcia, Odd Erik; Theodorsen, Audun; Brunner, Dan; Kuang, Adam; LaBombard, Brian; Terry, Jim L. (Conference object; Konferansebidrag, 2017)