Search Results - "Krasheninnikov, S. I"

Self-Similar Theory of Thermal Conduction and Application to the Solar Wind by Horaites, K, Boldyrev, S, Krasheninnikov, S I, Salem, C, Bale, S D, Pulupa, M

“…We propose a self-similar kinetic theory of thermal conductivity in a magnetized plasma, and discuss its application to the solar wind. We study a collisional…”
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Viscoelastic model of tungsten 'fuzz' growth by Krasheninnikov, S I

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Experimental evidence of intermittent convection in the edge of magnetic confinement devices by Antar, G Y, Krasheninnikov, S I, Devynck, P, Doerner, R P, Hollmann, E M, Boedo, J A, Luckhardt, S C, Conn, R W

“…Probe measurements in the PISCES linear device indicate the presence of plasma radially far from where it is produced. We show that this is mainly caused by…”
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Coupled plasma–wall modeling by Pigarov, A.Yu, Krasheninnikov, S.I.

“…The new time-dependent one-dimensional code WALLPSI to calculate wall temperature, erosion rates, and concentrations of trapped, chemically bonded, absorbed,…”
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Modeling of velocity distributions of dust in tokamak edge plasmas and dust–wall collisions by Smirnov, R.D., Krasheninnikov, S.I., Pigarov, A.Yu, Benson, D.J., Rosenberg, M., Mendis, D.A.

“…Velocity distribution functions of dust particles of various sizes are simulated in different regions of a tokamak using the DUSTT code. It is shown that dust…”
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Modeling of dust impact on tokamak edge plasmas by Smirnov, R.D., Krasheninnikov, S.I., Pigarov, A.Yu, Roquemore, A.L., Mansfield, D.K., Nichols, J.

“…The first self-consistent modeling of impact of dust on edge plasmas in tokamaks with the coupled dust–plasma transport code DUSTT/UEDGE is presented. The code…”
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3D measurements of mobile dust particle trajectories in NSTX by Roquemore, A.L., Nishino, N., Skinner, C.H., Bush, C., Kaita, R., Maqueda, R., Davis, W., Pigarov, A.Yu, Krasheninnikov, S.I.

“…The transport of dust particles in plasmas may play a significant role in the performance of next step fusion devices. Highly mobile incandescent dust…”
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Dynamics of nano-dust in tokamak edge plasma by Krasheninnikov, S.I., Soboleva, T.K., Mendis, D.A.

“…The dynamics of nano-scale dust for tokamak edge conditions is reviewed. It is shown that unlike micron-scale grains, where the ion–grain friction is the…”
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Dust and powder in fusion plasmas: recent developments in theory, modeling, and experiments by Ratynskaia, S., Bortolon, A., Krasheninnikov, S. I.

“…In this paper, we present a brief historic overview of the research on dust in fusion devices with carbon plasma-facing components and then highlight the most…”
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A Model of Self-similar Radiative Transfer in Resonance Lines for Testing the Edge Plasma Codes by Sdvizhenskii, P. A., Krasheninnikov, S. I., Kukushkin, A. B.

“…Possibilities of obtaining the analytical solutions of the one‐dimensional equation of radiative transfer in resonance atomic/ionic lines in the…”
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On “Recycling” Instability of the Scrape-off Layer Plasma by Krasheninnikov, S. I.

“…A new type of scrape-off layer plasma instability associated with radial inhomogeneity of plasma density, contact of plasma with conducting material surfaces,…”
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Long-Term Hydrogen Outgassing from Plasma Facing Components by Guterl, J., Smirnov, R. D., Krasheninnikov, S. I.

“…The time evolution of hydrogen outgassing fluxes from plasma facing components (PFCs) in tokamaks at room temperature is investigated using a…”
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Atomistic modeling of growth and coalescence of helium nano-bubbles in tungsten by Smirnov, R.D., Krasheninnikov, S.I., Guterl, J.

“…The mechanisms of growth and coalescence of helium nano-bubbles in tungsten are investigated using molecular dynamics simulations. It is shown that crystal…”
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Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod by Zweben, S.J., Terry, J.L., LaBombard, B., Agostini, M., Greenwald, M., Grulke, O., Hughes, J.W., D’Ippolito, D.A., Krasheninnikov, S.I., Myra, J.R., Russell, D.A., Stotler, D.P., Umansky, M.

“…The convective radial transport effects of SOL turbulence have been estimated using recent turbulence data from the gas puff imaging (GPI) camera diagnostic on…”
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On blob generation mechanisms in tokamak edge plasma by Bodi, K., Smolyakov, A.I., Krasheninnikov, S.I.

“…The four-wave interaction technique is used to demonstrate the impact of primary electrostatic (drift wave) turbulence on the generation of large-scale…”
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Transport of dust particles in tokamak devices by Pigarov, A.Yu, Smirnov, R.D., Krasheninnikov, S.I., Rognlien, T.D., Rosenberg, M., Soboleva, T.K.

“…Recent advances in the dust transport modeling in tokamak devices are discussed. Topics include: (1) physical model for dust transport; (2) modeling results on…”
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On ablation of large Tungsten dust grains in edge plasma of fusion devices by Krasheninnikov, S.I., Marenkov, E.D.

“…•We developed the model describing vapor shielding effects for W dust in plasmas.•Model shows reduction of evaporation rate of the grain in 10times.•This model…”
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Modeling of Hydrogen Retention and Outgassing from Co-Deposits with Distributed Energy States by Smirnov, R. D., Krasheninnikov, S. I., Guterl, J., Baldwin, M. J., Doerner, R. P.

“…A hydrogen retention/outgassing model with distributed hydrogen energy states in material is proposed. The model considers hydrogen in co‐deposits to occupy…”
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Blob Transport in the Tokamak Scrape-off-Layer by D'Ippolito, D. A., Myra, J. R., Krasheninnikov, S. I., Yu, G. Q., Pigarov, A. Yu

“…Recent experimental evidence suggests the importance of fast radial plasma transport in the scrape‐off‐layer (SOL) of tokamaks. The outward transport appears…”
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Migration of artificially introduced micron-size carbon dust in the DIII-D divertor by Rudakov, D.L., West, W.P., Wong, C.P.C., Brooks, N.H., Evans, T.E., Fenstermacher, M.E., Groth, M., Krasheninnikov, S.I., Lasnier, C.J., McLean, A.G., Pigarov, A.Yu, Solomon, W.M., Antar, G.Y., Boedo, J.A., Doerner, R.P., Hollmann, E.M., Hyatt, A.W., Moyer, R.A., Watkins, J.G.

“…Migration of pre-characterized carbon dust in a tokamak environment was studied by introduction of ∼30mg of micron-size (∼6μm median diameter) dust in the…”
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