47 citations · 282 across the 19 of their papers we have counts for
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Stochastic modeling of blob-like plasma filaments in the scrape-off layer: Time-dependent velocities and pulse stagnation
O. Paikina, J. M. Losada, A. Theodorsen +1
A stochastic model for a super-position of uncorrelated pulses with a random distribution of and correlations between amplitudes and velocities is analyzed. The pulses are assumed…
Strongly intermittent far scrape-off layer fluctuations in Alcator C-Mod plasmas close to the empirical discharge density limit
Sajidah Ahmed, Odd Erik Garcia, Adam Q Kuang +3
Intermittent plasma fluctuations in the boundary region of the Alcator C-Mod device were comprehensively investigated using data time-series from gas puff imaging and mirror Langmu…
Stochastic modelling of blob-like plasma filaments in the scrape-off layer: Theoretical foundation
J. M. Losada, A. Theodorsen, O. E. Garcia
A stochastic model is presented for a super-position of uncorrelated pulses with a random distribution of amplitudes, sizes, velocities and arrival times. The pulses are assumed to…
Numerical turbulence simulations of intermittent fluctuations in the scrape-off layer of magnetized plasmas
Gregor Decristoforo, Audun Theodorsen, John Omotani +2
Intermittent fluctuations in the boundary of magnetically confined plasmas are investigated by numerical turbulence simulations of a reduced fluid model describing the evolution of…
Comparison between mirror Langmuir probe and gas puff imaging measurements of intermittent fluctuations in the Alcator C-Mod scrape-off layer
R. Kube, A. Theodorsen, O. E. Garcia +3
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 fluctuatio…
Probability distribution functions for intermittent scrape-off layer plasma fluctuations
Audun Theodorsen, Odd Erik Garcia
A stochastic model for intermittent fluctuations in the scrape-off layer of magnetically confined plasmas has been constructed based on a super-position of uncorrelated pulses arri…
Intermittent electron density and temperature fluctuations and associated fluxes in the Alcator C-Mod scrape-off layer
Ralph Kube, Odd Erik Garcia, Audun Theodorsen +4
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…
Intermittent fluctuations in the Alcator C-Mod scrape-off layer for ohmic and high confinement mode plasmas
O. E. Garcia, R. Kube, A. Theodorsen +2
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 investigat…
Level crossings and excess times due to a super-position of uncorrelated exponential pulses
Audun Theodorsen, Odd Erik Garcia
A well-known stochastic model for intermittent fluctuations in physical systems is investigated. The model is given by a super-position of uncorrelated exponential pulses, and the…
Auto-correlation function and frequency spectrum due to a super-position of uncorrelated exponential pulses
O. E. Garcia, A. Theodorsen
The auto-correlation function and the frequency power spectral density due to a super-position of uncorrelated exponential pulses are considered. These are shown to be independent…
SOL width and intermittent fluctuations in KSTAR
O. E. Garcia, R. Kube, A. Theodorsen +5
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…
Scrape-off layer turbulence in TCV: evidence in support of stochastic modelling
A. Theodorsen, O. E. Garcia, J. Horacek +2
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 in the scrape-off layer of Alcator C-Mod
Ralph Kube, Odd Erik Garcia, Audun Theodorsen +2
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 lo…