Results 21 to 30 of about 3,588 (251)

Vlasov simulation of the emissive plasma sheath with energy-dependent secondary emission coefficient and improved modeling for dielectric charging effects

Frontiers in Physics, 2022
A one-dimensional Vlasov–Poisson simulation code is employed to investigate the plasma sheath considering electron-induced secondary electron emission (SEE) and backscattering.
Guang-Yu Sun, Guang-Yu Sun, Shu Zhang, Bao-Hong Guo, An-Bang Sun, Guan-Jun Zhang   +5 more
doaj   +1 more source

Cell wall stress depolarizes cell growth via hyperactivation of RHO1 [PDF]

, 1999
Cells sense and physiologically respond to environmental stress via signaling pathways. Saccharomyces cerevisiae cells respond to cell wall stress by transiently depolarizing the actin cytoskeleton.
Hall, M. N., Delley, P. A., Pierre-Alain Delley, Michael N. Hall   +3 more
core   +1 more source

Erosion estimates for the divertor and main wall components from STEP

Nuclear Fusion, 2023
The tungsten erosion within Spherical Tokamak for Energy Production (STEP) assuming tungsten main wall and tungsten divertor has been estimated with ERO at the inner and outer divertor, at the inner and outer midplane and at the outboard baffle entrance.
A. Kirschner, S.S. Henderson, S. Brezinsek, J. Romazanov, M. Kovari, C. Baumann, Ch. Linsmeier, E. Flynn, J. Hess, R.T. Osawa, S.L. Newton, D. Moulton, the STEP Team   +12 more
doaj   +1 more source

Analysis of the beryllium stability under standard and critical operation in a fusion reactor

Eurasian Journal of Physics and Functional Materials, 2021
The paper provides data on the peculiarity of change in the structure, structural phase changes and destructions in beryllium resulting from interaction with a near-wall plasma of fusion facilities. Beryllium resistance under conditions of ITER operation
I. A. Sokolov, M. K. Skakov, A. Zh. Miniyazov, B. T. Aubakirov, T. R. Tulenbergenov, A. V. Gradoboev   +5 more
doaj   +1 more source

Comparison of ion cyclotron wall conditioning discharges in hydrogen and helium in JET

Nuclear Materials and Energy, 2023
This paper explores the plasma parameters of helium and hydrogen Ion Cyclotron Wall Conditioning (ICWC) discharges performed in JET as part of a He/H fuelling changeover experiment. The conducted study shows that plasma with a higher density is formed in
Y. Kovtun, T. Wauters, D. Matveev, R. Bisson, I. Jepu, S. Brezinsek, I. Coffey, E. Delabie, A. Boboc, T. Dittmar, A. Hakola, P. Jacquet, K. Kirov, E. Lerche, J. Likonen, E. Litherland-Smith, T. Loarer, P. Lomas, C. Lowry, E. Pawelec, C. Perez von Thun, A. Meigs, M. Maslov, I. Monakhov, C. Noble, S. Silburn, H. Sun, D. Taylor, E. Tsitrone, A. Widdowson, H. Sheikh, D. Douai   +31 more
doaj   +1 more source

Charging of micro-particles in plasma-dust interaction [PDF]

, 2004
A microphysical description of the charging of dust grains in a plasma is presented. The model which is based on plasma-wall interaction processes predicts the dependence of the grain charge on the particle radius and on the particle temperature better ...
Deutsch, H., Kersten, H., Kroesen, G.M.W.   +2 more
core   +1 more source

Bayesian Determination of Parameters for Plasma-Wall Interactions [PDF]

Entropy, 2019
Within the Bayesian framework a non-intrusive uncertainty quantification is performed to assess the uncertainty of ion–solid interaction simulations. For this we employ a reduced-order spectral expansion approach which is capable of confining the number of model runs to a feasible size.
Roland Preuss, Rodrigo Arredondo, Udo von Toussaint   +2 more
openaire   +4 more sources

Pre-design of magnum-PSI: A new plasma-wall interaction experiment [PDF]

, 2007
The FOM-Institute for Plasma Physics Rijnhuizen is preparing the construction of Magnum-PSI, a magnetized (3 T), steady state, large area (80 cm(2)) high-flux (up to 10(24) H+ ions m(-2) s(-1)) plasma generator. The aim of the linear plasma device Magnum-
Groot, B de, G. J. van Rooij, A. W. Kleyn, Groot, de, B., Pol, van de, M.J., N.J. Lopes Cardozo, Pol, MJ van de, Rooij, GJ Gerard van, Smeets, P., Goedheer, W.J., van Eck, H. J. N., Schweer, B, Scholten, J., Brons, S, Schweer, B., Kleyn, A.W., Engeln, R. A. H., Koppers, WR, van de Pol, M., Koppers, W.R., Smeets, PHM, de Groot, B., Samm, U., van Rooij, G.J., Eck, HJN van, D.C. Schram, Philipps, V., Koppers, W. R., Kleyn, AW, Engeln, RAH Richard, Eck, van, H.J.N., Rooij, van, G.J.; id_orcid, Schram, DC Daan, Rooij, van, G.J., Scharam, D.C., Gooedheer, W.J., Lopes Cardozo, N.J., Samm, U, Lopes Cardozo, NJ Niek, Koch, R, Engeln, R.A.H., Lopes-Cardozo, N.L., Philipps, V, van Eck, H.J.N., Smeets, P.H.M., Schram, D.C., W. J. Goedheer, Brons, S., Koch, R., Goedheer, WJ, Scholten, J   +50 more
core   +1 more source

Expansion characteristics of a plasma jet in the stepped-wall liquid chamber

AIP Advances, 2018
The stepped-wall liquid chamber is an effective way to control the interaction instability during the expansion process of a plasma jet in the working fluid.
Yi Liu, Yonggang Yu, Shanshan Mang
doaj   +1 more source

Global 3D full-scale turbulence simulations of TCV-X21 experiments with SOLEDGE3X

Nuclear Materials and Energy
First principle modelling of edge plasma turbulence including neutrals and plasma recycling on the wall remains a challenge, in particular due to the long time scales necessary to simulate to reach particle balance.
H. Bufferand, G. Ciraolo, R. Düll, G. Falchetto, N. Fedorczak, Y. Marandet, V. Quadri, M. Raghunathan, N. Rivals, F. Schwander, E. Serre, S. Sureshkumar, P. Tamain, N. Varadarajan   +13 more
doaj   +1 more source