Zobrazeno 1 - 10
of 439
pro vyhledávání: '"Kube R"'
Particle-In-Cell (PIC) methods are frequently used for kinetic, high-fidelity simulations of plasmas. Implicit formulations of PIC algorithms feature strong conservation properties, up to numerical round-off errors, and are not subject to time-step l
Externí odkaz:
http://arxiv.org/abs/2110.12444
Statistical properties of the scrape-off layer (SOL) plasma fluctuations are studied in ohmically heated plasmas in the Alcator C-Mod tokamak. For the first time, plasma fluctuations as well as parameters that describe the fluctuations are compared a
Externí odkaz:
http://arxiv.org/abs/2005.02145
Publikováno v:
Review of Scientific Instruments 90, 013505 (2019)
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 uni
Externí odkaz:
http://arxiv.org/abs/1804.08927
Large-amplitude, intermittent fluctuations are ubiquitous in the boundary region of magnetically confined plasmas and lead to detrimental plasma-wall interactions in the next-generation, high duty cycle fusion power experiments. Using gas puff imagin
Externí odkaz:
http://arxiv.org/abs/1802.05052
Plasma fluctuations in the scrape-off layer of the Alcator C-Mod tokamak in ohmic and high confinement modes have been analyzed using gas puff imaging data. In all cases investigated, the time series of emission from a single spatially-resolved view
Externí odkaz:
http://arxiv.org/abs/1801.00612
Fluctuations in the boundary region of the Alcator C-Mod tokamak have been analyzed using gas puff imaging data from a set of Ohmically heated plasma density scan experiments. It is found that the relative fluctuation amplitudes are modest and close
Externí odkaz:
http://arxiv.org/abs/1702.01104
Autor:
Garcia, O. E., Kube, R., Theodorsen, A., Bak, J. -G., Hong, S. -H., Kim, H. -S., Team, the KSTAR Project, Pitts, R. A.
Radial profiles of the ion saturation current and its fluctuation statistics are presented from probe measurements in L-mode, neutral beam heated plasmas at the outboard mid-plane region of KSTAR. The familiar two-layer structure, seen elsewhere in t
Externí odkaz:
http://arxiv.org/abs/1611.03440
The interchange dynamics and velocity scaling of blob-like plasma filaments are investigated using a two-field reduced fluid model. For incompressible flows due to buoyancy the maximum velocity is proportional to the square root of the relative ampli
Externí odkaz:
http://arxiv.org/abs/1606.06855
Publikováno v:
Plasma Phys. Control. Fusion 58 (2016) 044006
Intermittent fluctuations in the TCV scrape-off layer have been investigated by analysing long Langmuir probe data time series under stationary conditions, allowing calculation of fluctuation statistics with high accuracy. The ion saturation current
Externí odkaz:
http://arxiv.org/abs/1604.08163
Bursty fluctuations in the scrape-off layer (SOL) of Alcator C-Mod have been analyzed using gas puff imaging data. This reveals many of the same fluctuation properties as Langmuir probe measurements, including normal distributed fluctuations in the n
Externí odkaz:
http://arxiv.org/abs/1205.6996