Results 11 to 20 of about 1,110,668 (287)

Separatrix parameters and core performances across the WEST L-mode database

Nuclear Fusion, 2023
Abstract WEST database analysis shows a correlation of the recycled neutral source around the separatrix with core performances. This observation questions the causality chain between particle source and turbulent transport up to the core in L-mode, high recycling plasmas, an unavoidable phase of all scenarios. The best core performances
C. Bourdelle, J. Morales, J.F. Artaud, O. Grover, T. Radenac, J. Bucalossi, Y. Camenen, G. Ciraolo, F. Clairet, R. Dumont, N. Fedorczak, J. Gaspar, C. Gil, M. Goniche, C. Guillemaut, J. Gunn, P. Maget, P. Manas, V. Ostuni, B. Pégourié, Y. Peysson, P. Tamain, L. Vermare, D. Vézinet, the WEST Team   +24 more
openaire   +3 more sources

Electron heat transport in shaped TCV L-mode plasmas [PDF]

Plasma Physics and Controlled Fusion, 2005
Electron heat transport experiments are performed in L-mode discharges at various plasma triangularities, using radially localized electron cyclotron heating to vary independently both the electron temperature T-e and the normalized electron temperature gradient R/L-Te over a large range.
Camenen, Y., Pochelon, A., Bottino, A., Coda, S., Ryter, F., Sauter, O., Behn, R., Goodman, T. P., Henderson, M. A., Karpushov, A., Porte, L., Zhuang, G.   +11 more
openaire   +5 more sources

Divertor Heat Load in ASDEX Upgrade L-Mode in Presence of External Magnetic Perturbation [PDF]

, 2017
Power exhaust is one of the major challenges for a future fusion device. Applying a non-axisymmetric external magnetic perturbation is one technique that is studied in order to mitigate or suppress large edge localized modes which accompany the high ...
Eich, Thomas, Faitsch, Michael, Herrmann, Albrecht, Sieglin, Bernhard, Suttrop, Wolfgang, Team, the ASDEX Upgrade   +5 more
core   +3 more sources

Designing a VH-mode core/L-mode edge discharge [PDF]

Plasma Physics and Controlled Fusion, 1996
An operating mode with a very high confinement core like the VH-mode but a very low power flow to the divertor plates and low edge particle confinement like an L-mode would be beneficial. For a large tokamak like the proposed ITER, the power density at the separatrix is not that far above the scaled H-mode power threshold so not much of the power can ...
G M Staebler, F L Hinton, J C Wiley
openaire   +3 more sources

Mode Conversion Behavior of Guided Wave in a Pipe Inspection System Based on a Long Waveguide

Sensors, 2016
To make clear the mode conversion behavior of S0-mode lamb wave and SH0-plate wave converting to the longitudinal mode guided wave and torsional mode guided wave in a pipe, respectively, the experiments were performed based on a previous built pipe ...
Feiran Sun, Zhenguo Sun, Qiang Chen, Riichi Murayama, Hideo Nishino   +4 more
doaj   +1 more source

Entropy in Black Hole Pair Production [PDF]

, 1993
Pair production of Reissner-Nordstrom black holes in a magnetic field can be described by a euclidean instanton. It is shown that the instanton amplitude contains an explicit factor of $e^{A/4}$, where $A$ is the area of the event horizon.
Andrew Strominger, D. Brill, D. Garfinkle, David Garfinkle, F. J. Ernst, G. W. Gibbons, G. W. Gibbons, I. K. Affleck, I. K. Affleck, J. A. Harvey, J. D. Bekenstein, J. D. Bekenstein, K. Lee, K. Lee, M. A. Melvin, M. Srednicki, R. M. Wald, S. B. Giddings, S. B. Giddings, S. B. Giddings, S. B. Giddings, S. W. Hawking, Steven B. Giddings, T. Banks, T. Banks   +24 more
core   +2 more sources

Perturbative momentum transport in MAST L-mode plasmas

Nuclear Fusion, 2017
Non-axisymmetric magnetic fields are used to perturbatively probe momentum transport physics in MAST L-mode plasmas. The low beta L-mode target was chosen to complement previous experiments conducted in high beta NSTX H-mode plasmas (β N = 3.5-4.6) where an inward momentum pinch was measured.
Guttenfelder, W., Field, A.R., Lupelli, I., Tala, T., Kaye, S.M., Ren, Y., Solomon, W.M.   +7 more
openaire   +4 more sources

Scattering of guided waves propagating through pipe bends based on normal mode expansion

Scientific Reports, 2022
The scattering of guided waves propagating through pipe bends is studied by means of normal mode expansion. First, the bi-orthogonality relationship for normal modes in pipe bends is derived, based on which the displacement and stress fields at the ...
Wenjun Wu, Hao Dong, Shangyu Zhang
doaj   +1 more source

Nitrogen-seeded divertor detachment in TCV L-mode plasmas [PDF]

Plasma Physics and Controlled Fusion, 2020
Most of the detachment experiments done to date on the tokamak à configuration variable (TCV), both in standard and alternative divertor geometries, focused on L-mode integrated core density ramps. In view of extending these studies to high-power, high-confinement regimes, where impurity seeding will be necessary for detachment, the properties of ...
O Février, C Theiler, J R Harrison, C K Tsui, K Verhaegh, C Wüthrich, J A Boedo, H De Oliveira, B P Duval, B Labit, B Lipschultz, R Maurizio, H Reimerdes   +12 more
openaire   +2 more sources

Meander, Folding and Arch Statistics [PDF]

, 1995
The statistics of meander and related problems are studied as particular realizations of compact polymer chain foldings. This paper presents a general discussion of these topics, with a particular emphasis on three points: (i) the use of a direct ...
Brézin, Di Francesco, E. Guitter, Hoffman, Ko, Lando, Lando, Lunnon, O. Golinelli, P. Di Francesco, Phillips, Touchard   +11 more
core   +3 more sources