Results 81 to 90 of about 196 (131)

Experimental scaling of compressional Alfvén eigenmode stability

Nuclear Fusion
Both co-propagating and counter-propagating compressional Alfvén eigenmodes (CAE) are relatively ubiquitous in NSTX plasmas with toroidal field strengths of ⩽4.65 kG, but are largely absent in the NSTX-U plasmas with toroidal fields of 5.7–5.9 kG.
E.D. Fredrickson
doaj   +1 more source

An analytical model of how the negative triangularity cuts off the access to the second stable region in tokamak plasmas

Nuclear Fusion
We present an analytical model to evaluate the triangularity-shaping effects in accessing the second stable region for the ideal ballooning mode. Our results indicate that if the triangularity is sufficiently negative, the path from the first to the ...
Y. Zhang, Z.B. Guo, R.R. Ma, M. Xu
doaj   +1 more source

Magnetopause ripples going against the flow form azimuthally stationary surface waves. [PDF]

Nat Commun, 2021
Archer MO, Hartinger MD, Plaschke F, Southwood DJ, Rastaetter L.   +4 more
europepmc   +1 more source

Transport and losses of energetic particles in tokamaks in the presence of Alfvén activity using the new full orbit TAPaS code coupled to FAR3d

Nuclear Fusion
Recent developments and tools integrated into the TAPaS code are presented, enabling realistic scenario simulations of particle dynamics within experimental tokamak magnetic equilibria.
H. Betar, D. Zarzoso, J. Varela, D. Del-Castillo-Negrete, L. Garcia, X. Du   +5 more
doaj   +1 more source

Transformative science from the lunar farside: observations of the dark ages and exoplanetary systems at low radio frequencies. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Burns JO.
europepmc   +1 more source

Simulations of vertical displacement oscillatory modes and global Alfvén Eigenmodes in JET geometry

Nuclear Fusion
Vertical Displacement Oscillatory Modes (VDOM), with frequency in the Alfvén range, are natural modes of oscillation of magnetically confined laboratory plasmas with elongated cross-section. These axisymmetric modes arise from the interaction between the
T. Barberis, C.C. Kim, F. Porcelli, D. Banerjee, N. Hawkes, Ye O. Kazakov, Y.Q. Liu, H.J.C. Oliver, S.E. Sharapov, A. Yolbarsop, NIMROD Team, JET Contributors   +11 more
doaj   +1 more source

Van Allen Probes Observations of Symmetric Stormtime Compressional ULF Waves. [PDF]

J Geophys Res Space Phys, 2022
Takahashi K, Crabtree C, Ukhorskiy AY, Boyd A, Denton RE, Turner D, Gkioulidou M, Vellante M, Spence HE.   +8 more
europepmc   +1 more source

The Viscous and Ohmic Damping of the Earth's Free Core Nutation. [PDF]

J Geophys Res Solid Earth, 2021
Triana SA, Trinh A, Rekier J, Zhu P, Dehant V.   +4 more
europepmc   +1 more source

Nonlinear MHD Rossby wave interactions and persistent geomagnetic field structures. [PDF]

Proc Math Phys Eng Sci, 2020
Raphaldini B, Raupp CFM.
europepmc   +1 more source

Occurrence characteristics and amplitude-frequency relationship of the Pc5 ULF waves from 3 decades of GOES data. [PDF]

Sci Rep
Inceoglu F, Loto'aniu PTM.
europepmc   +1 more source