Results 11 to 20 of about 56,208 (298)

Toroidal modeling of penetration of the resonant magnetic perturbation field [PDF]

Physics of Plasmas, 2013
A toroidal, quasi-linear model is proposed to study the penetration dynamics of the resonant magnetic perturbation (RMP) field into the plasma. The model couples the linear, fluid plasma response to a toroidal momentum balance equation, which includes ...
Kirk, A., Liu, Yueqiang, Sun, Y.
core   +4 more sources

Resonant-state expansion for open optical systems: Generalization to magnetic, chiral, and bi-anisotropic materials [PDF]

, 2018
The resonant-state expansion, a recently developed powerful method in electrodynamics, is generalized here for open optical systems containing magnetic, chiral, or bi-anisotropic materials.
Muljarov, E. A., Weiss, T.
core   +3 more sources

Validation of density pump-out by pedestal-foot magnetic island formation prior to ELM suppression in KSTAR and DIII-D tokamaks

Nuclear Fusion, 2023
TM1 nonlinear two-fluid simulations reveal key characteristics of density pump-out caused by pedestal-foot island formation when applying resonant magnetic perturbation (RMP).
Q.M. Hu, J.-K. Park, S.M. Yang, S.K. Kim, N.C. Logan, R. Nazikian, J. Kang, C. Paz-Soldan, W.H. Ko, G.Y. Park   +9 more
doaj   +1 more source

Effect of resonant magnetic perturbations on particle confinement [PDF]

Nuclear Fusion, 2009
The effect of externally applied resonant magnetic perturbations (RMPs) on plasma particle transport is investigated based on two fluid equations. It is found that, depending on the frequency and direction of plasma rotation, the RMP of a moderate amplitude can either increase or decrease the plasma density gradient around the corresponding rational ...
Yu, Q., Günter, S.
openaire   +3 more sources

Control of Transport-Barrier Relaxations by Resonant Magnetic Perturbations

Physical Review Letters, 2009
Transport-barrier relaxation oscillations in the presence of resonant magnetic perturbations are investigated using three-dimensional global fluid turbulence simulations from first principles at the edge of a tokamak. It is shown that resonant magnetic perturbations have a stabilizing effect on these relaxation oscillations and that this effect is due ...
Leconte, Michael, Beyer, P., Garbet, Xavier, Benkadda, S.   +3 more
openaire   +4 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

Suppression of resistive interchange instability by external RMP

Nuclear Fusion, 2023
We experimentally investigate the effect of external resonant magnetic perturbation (RMP) on resistive interchange MHD instability which is typically observed in the Large Helical Device. We apply the m / n = 1/1 external RMP to discharges with the m / n
S. Ito, K.Y. Watanabe, Y. Takemura, S. Sakakibara, S. Masamune   +4 more
doaj   +1 more source

Perturbation approach for nuclear magnetic resonance solid‐state quantum computation [PDF]

Journal of Applied Mathematics, 2003
A dynamics of a nuclear‐spin quantum computer with a large number (L = 1000) of qubits is considered using a perturbation approach. Small parameters are introduced and used to compute the error in an implementation of an entanglement between remote qubits, using a sequence of radio‐frequency pulses.
Berman, G. P., Kamenev, D. I., Tsifrinovich, V. I.   +2 more
openaire   +4 more sources

Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations [PDF]

Physical Review Letters, 2014
A possible mechanism of edge localized modes (ELMs) mitigation by resonant magnetic perturbations (RMPs) is proposed based on the results of nonlinear resistive magnetohydrodynamic modeling using the jorek code, realistic JET-like plasma parameters and an RMP spectrum of JET error-field correction coils (EFCC) with a main toroidal number n=2 were used ...
Becoulet, Marina, Orain, F., Huijsmans, G. T. A., Pamela, S., Cahyna, P., Hoelzl, M., Garbet, X., Franck, E., Sonnendrücker, E., Dif-Pradalier, Guilhem, Passeron, C., Latu, G., Morales, J., Nardon, E., Fil, Alexandre, Nkonga, B., Ratnani, A., Grandgirard, V.   +17 more
openaire   +4 more sources

Suppression of Runaway Electrons by Resonant Magnetic Perturbations in TEXTOR Disruptions [PDF]

Physical Review Letters, 2008
The generation of runaway electrons in the international fusion experiment ITER disruptions can lead to severe damage at plasma facing components. Massive gas injection might inhibit the generation process, but the amount of gas needed can affect, e.g., vacuum systems.
Lehnen, M., Bozhenkov, S. A., Abdullaev, S. S., TEXTOR Team, Jakubowski, M. W.   +4 more
openaire   +5 more sources