Results 11 to 20 of about 357 (69)

Statistically determined dispersion relations of magnetic field fluctuations in the terrestrial foreshock [PDF]

, 2016
We obtain dispersion relations of magnetic field fluctuations for two crossings of the terrestrial foreshock by Cluster spacecraft. These crossings cover plasma conditions that differ significantly in their plasma β and in the density of the reflected ...
Hnat, Bogdan, Nakariakov, V. M. (Valery M.), O’Connell, D, Sundberg, T.   +3 more
core   +1 more source

Interpretating observations of ion cyclotron emission from Large Helical Device plasmas with beam-injected ion populations [PDF]

, 2019
Ion cyclotron emission (ICE) is detected from all large toroidal magnetically confined fusion (MCF) plasmas. It is a form of spontaneous suprathermal radiation, whose spectral peak frequencies correspond to sequential cyclotron harmonics of energetic ion
Akiyama, T., Chapman, Sandra C., Cook, J. W. S., Dendy, Richard, Igami, H., Inagaki, S., Reman, Bernard Charles G, Saito, K., Yun, G. S.   +8 more
core   +1 more source

Local Geometry of the Fermi Surface and Magnetoacoustic Responce of Two-Dimensional Electron Systems in Strong Magnetic Fields

, 2004
A semiclassical theory for magnetotrasport in a quantum Hall system near filling factor $\nu = 1/2 $ based on the Composite Fermions physical picture is used to analyze the effect of local flattening of the Composite Fermion Fermi surface (CF-FS) upon ...
Fogler M M, Fogler M M, Gradstein I S, Halperin B I, Moessner R, Natalya A Zimbovskaya, Shoenberg D, Simon S H, Willett R L, Zimbovskaya N A, Zimbovskaya N A   +10 more
core   +1 more source

Interpretation of suprathermal emission at deuteron cyclotron harmonics from deuterium plasmas heated by neutral beam injection in the KSTAR tokamak [PDF]

, 2019
Intense bursts of suprathermal radiation, with spectral peaks at
 frequencies corresponding to the deuteron cyclotron frequency in the outer
 midplane edge region, are often detected from deuterium plasmas in the KSTAR
 tokamak ...
Chapman, Benjamin, Chapman, Sandra C., Dendy, R. O., Kim, M. H., McClements, K. G., Thatipamula, S. G., Yun, G. S.   +6 more
core   +1 more source

Solar flare electron acceleration: comparing theories and observations

, 2003
A popular scenario for electron acceleration in solar flares is transit-time damping of low-frequency MHD waves excited by reconnection and its outflows.
A.O. Benz, Benz, Benz, Benz, Brown, Brown, Bruggmann, Dennis, Fisk, Fletcher, Grechnev, Grigis, Güdel, Innes, Isliker, Khan, Kliem, Kuijpers, Lin, Messmer, Miller, Neupert, P. Saint-Hilaire, Paesold, Paesold, Parks, Pohjolainen, Priest, Saint-Hilaire, Shibata, Simnett, Stix, Vlahos, Yokoyama, Young, Zhang   +35 more
core   +2 more sources

Parametric instabilities in magnetized multicomponent plasmas

, 2006
This paper investigates the excitation of various natural modes in a magnetized bi-ion or dusty plasma. The excitation is provided by parametrically pumping the magnetic field. Here two ion-like species are allowed to be fully mobile.
A. B. Pippard, C. R. Ovenden, D. B. Melrose, E. Mjølhus, E. Mjølhus, E. Mjølhus, K. Mio, K. Nishikawa, L. Gomberoff, L. Spitzer Jr., M. Longtin, M. P. Hertzberg, N. F. Cramer, N. F. Cramer, N. F. Cramer, N. F. Cramer, R. J. Bray, S. R. Spangler, S. V. Vladimirov   +18 more
core   +1 more source

Pressure anisotropy and small spatial scales induced by velocity shear [PDF]

, 2015
Non-Maxwellian metaequilibria can exist in low-collisionality plasmas as evidenced by satellite and laboratory measurements. By including the full pressure tensor dynamics in a fluid plasma model, we show that a sheared velocity field can provide an ...
Califano, Francesco, Del Sarto, Daniele, Pegoraro, Francesco   +2 more
core   +4 more sources

Predicting ion cyclotron emission from neutral beam heated plasmas in Wendelstein7-X stellarator

Nuclear Fusion
Measurements of ion cyclotron emission (ICE) are planned for magnetically confined fusion plasmas heated by neutral beam injection (NBI) in the Wendelstein 7-X stellarator (W7-X).
O. Samant, R.O. Dendy, S.C. Chapman, D. Moseev, R. Ochoukov   +4 more
doaj   +1 more source

Radio fiber bursts and fast magnetoacoustic wave trains

, 2012
We present a model for dm-fiber bursts that is based on assuming fast sausage magnetoacoustic wave trains that propagate along a dense vertical filament or current sheet.
Jelínek, P., Karlický, M., Mészárosová, H.   +2 more
core   +1 more source

The consequences of tritium mix for simulated ion cyclotron emission spectra from deuterium-tritium plasmas

Nuclear Fusion
Measurements of ion cyclotron emission (ICE) are obtained from most large magnetically confined fusion plasma experiments, and may be used in future to quantify properties of the fusion-born alpha-particle population in deuterium-tritium (DT) plasmas in ...
T.W. Slade-Harajda, S.C. Chapman, R.O. Dendy   +2 more
doaj   +1 more source