Results 31 to 40 of about 30,961 (212)

Energetic particle-driven compressional Alfvén eigenmodes and prospects for ion cyclotron emission studies in fusion plasmas

open access: yesNew Journal of Physics, 2016
As a fundamental plasma oscillation the compressional Alfvén waves (CAWs) are interesting for plasma scientists both academically and in applications for fusion plasmas. They are believed to be responsible for the ion cyclotron emission (ICE) observed in
N N Gorelenkov
doaj   +1 more source

Atmospheres and Spectra of Strongly Magnetized Neutron Stars II: Effect of Vacuum Polarization [PDF]

open access: yes, 2002
We study the effect of vacuum polarization on the atmosphere structure and radiation spectra of neutron stars with surface magnetic fields B=10^14-10^15 G, as appropriate for magnetars.
Ho, Wynn C. G., Lai, Dong
core   +5 more sources

High-frequency Alfven waves in multi-ion coronal plasma : observational implications [PDF]

open access: yes, 2005
We investigate the effects of high-frequency (of order ion gyrofrequency) Alfvén and ion-cyclotron waves on ion emission lines by studying the dispersion of these waves in a multi-ion coronal plasma.
Davila, J. M. (Joseph M.)   +3 more
core   +1 more source

Perturbative analysis of two-temperature radiative shocks with multiple cooling processes [PDF]

open access: yes, 1999
The structure of the hot downstream region below a radiative accretion shock, such as that of an accreting compact object, may oscillate because of a global thermal instability.
Saxton, C, Wu, K
core   +3 more sources

Survey of the TS-ECE Discrepancy and recent investigations in ICRF heated plasmas at Alcator C-Mod

open access: yesEPJ Web of Conferences, 2012
This paper reports on a new investigation of the long-standing, unresolved discrepancy between Thomson Scattering (TS) and Electron Cyclotron Emission (ECE) measurements of electron temperature in high temperature tokamak plasmas.
Reinke M. L.   +11 more
doaj   +1 more source

Velocity-space sensitivity and inversions of synthetic ion cyclotron emission

open access: yesPhysics of Plasmas, 2023
This paper introduces a new model to find the velocity-space location of energetic ions generating ion cyclotron emission (ICE) in plasmas. ICE is thought to be generated due to inverted gradients in the v⊥ direction of the velocity distribution function or due to anisotropies, i.e., strong gradients in the pitch direction.
B. S. Schmidt   +9 more
openaire   +3 more sources

Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror

open access: yesNuclear Materials and Energy, 2019
The transition of a detached to attached plasma experiment has been performed in GAMMA 10/PDX by applying an additional plasma heating pulse of electron cyclotron heating (ECH).
Y. Nakashima   +26 more
doaj   +1 more source

Statistical equilibrium and ion cyclotron absorption/emission in strongly magnetized plasmas

open access: yes, 2007
We calculate the transition rates between proton Landau levels due to non-radiative and radiative Coulomb collisions in an electron-proton plasma with strong magnetic field B.
Alexander Y. Potekhin   +67 more
core   +3 more sources

Ion Cyclotron Emission Studies: Retrospects and Prospects

open access: yesФизика плазмы, 2016
Ion cyclotron emission (ICE) studies emerged in part from the papers by A.B. Mikhailovskii published in the 1970s. Among the discussed subjects were electromagnetic compressional Alfvenic cyclotron instabilities with the linear growth rate ~ $\sqrt {n_\alpha /n_e } $
openaire   +2 more sources

SPORT: A new sub-nanosecond time-resolved instrument to study swift heavy ion-beam induced luminescence - Application to luminescence degradation of a fast plastic scintillator [PDF]

open access: yes, 2013
We developed a new sub-nanosecond time-resolved instrument to study the dynamics of UV-visible luminescence under high stopping power heavy ion irradiation.
Balanzat, E.   +10 more
core   +4 more sources

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