Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Kube, Ralph"'
The emergence and dynamics of filamentary structures associated with edge-localized modes (ELMs) inside tokamak plasmas during high-confinement mode is regularly studied using Electron Cyclotron Emission Imaging (ECEI) diagnostic systems. ECEI allows
Externí odkaz:
http://arxiv.org/abs/2201.07941
Autor:
Kube, Ralph, Churchill, R. Michael, Chang, CS, Choi, Jong, Wang, Jason, Klasky, Scott, Stephey, Laurie, Choi, Minjun, Dart, Eli
While experiments on fusion plasmas produce high-dimensional data time series with ever increasing magnitude and velocity, data analysis has been lagging behind this development. For example, many data analysis tasks are often performed in a manual,
Externí odkaz:
http://arxiv.org/abs/2108.08896
Novel mechanisms for zonal flow (ZF) generation for both large relative density fluctuations and background density gradients are presented. In this non-Oberbeck-Boussinesq (NOB) regime ZFs are driven by the Favre stress, the large fluctuation extens
Externí odkaz:
http://arxiv.org/abs/1807.03013
Autor:
Kube, Ralph, Garcia, Odd Erik, Theodorsen, Audun, Brunner, Dan, Kuang, Adam QingYang, LaBombard, Brian, Terry, James L.
The Alcator C-Mod mirror Langmuir probe system has been used to sample data time series of fluctuating plasma parameters in the outboard mid-plane far scrape-off layer. We present a statistical analysis of one second long time series of electron dens
Externí odkaz:
http://arxiv.org/abs/1803.05172
We study the dynamics of seeded plasma blobs and depletions in an (effective) gravitational field. For incompressible flows the radial center of mass velocity of blobs and depletions is proportional to the square root of their initial cross-field siz
Externí odkaz:
http://arxiv.org/abs/1701.04225
We study long time series of the ion saturation current and floating potential, sampled by Langmuir probes dwelled in the outboard mid-plane scrape off layer and embedded in the lower divertor baffle of Alcator C-Mod. A series of ohmically heated L-m
Externí odkaz:
http://arxiv.org/abs/1410.4114
Autor:
Kube, Ralph, Garcia, Odd Erik
Particle density fluctuations in the scrape-off layer of magnetically confined plasmas, as measured by gas-puff imaging or Langmuir probes, are modeled as the realization of a stochastic process in which a superposition of pulses with a fixed shape,
Externí odkaz:
http://arxiv.org/abs/1409.8319