Results 91 to 100 of about 3,748,790 (295)

Hybrid resonance of Maxwell's equations in slab geometry

, 2014
Hybrid resonance is a physical mechanism for the heating of a magnetic plasma. In our context hybrid resonance is a solution of the time harmonic Maxwell's equations with smooth coefficients, where the dielectric tensor is a non diagonal hermitian matrix.
Després, Bruno, Imbert-Gérard, Lise-Marie, Weder, Ricardo   +2 more
core   +1 more source

On Physical Parameters of the Demonstration Stellarator-Reactor Operating in the Mode of Self-Supported Thermonuclear Reaction

East European Journal of Physics, 2012
With the use of a one-dimensional spatial-temporal numerical code under conditions of ambipolarity of neoclassical transport fluxes the regimes of the self-supported DT-fusion reaction in a reactor-stellarator are calculated.
Vasiliy Rudakov
doaj  

Spatio-temporal evolution of electric field inside a microwave discharge plasma during initial phase of ignition and its effect on power coupling

, 2018
During the initial phase of microwave (MW) power launch inside a MW discharge ion source (MDIS), plasma and the electric fields are evolved with time together in the plasma volume. The spatio-temporal evolution pattern in the cavity of a MDIS is reported
Bandyopadhyay, Mainak, Kumar, Rajesh, Mallick, Chinmoy   +2 more
core   +1 more source

A megawatt-level 28 GHz heating system for the National Spherical Torus Experiment Upgrade

EPJ Web of Conferences, 2015
The National Spherical Torus Experiment Upgrade (NSTX-U) will operate at axial toroidal fields of ≤ 1 T and plasma currents, Ip ≤ 2 MA. The development of non-inductive (NI) plasmas is a major long-term research goal for NSTX-U.
Taylor G., Ellis R.A., Fredd E., Gerhardt S. P., Greenough N., Harvey R. W., Hosea J. C., Parker R., Poli F., Raman R., Shiraiwa S., Smirnov A. P., Terry D., Wallace G., Wukitch S.   +14 more
doaj   +1 more source

Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator

Results in Physics, 2017
High yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer.
S. Adlparvar, S. Miraboutalebi, S.M. Sadat Kiai, L. Rajaee   +3 more
doaj   +1 more source

Plasma heating due to X-B mode conversion in a cylindrical ECR plasma system

, 2004
Extra Ordinary (X) mode conversion to Bernstein wave near Upper Hybrid Resonance (UHR) layer plays an important role in plasma heating through cyclotron resonance.
Bora, D., Yadav, Vipin K.
core   +1 more source

Ionization by bulk heating of electrons in capacitive radio frequency atmospheric pressure microplasmas

, 2013
Electron heating and ionization dynamics in capacitively coupled radio frequency (RF) atmospheric pressure microplasmas operated in helium are investigated by Particle in Cell simulations and semi-analytical modeling.
, A Derzsi, Babayan S E, Becker K H, D Eremin, Hemke T, J Meichsner, J Schulze, K Dittmann, Knake N, Kong M G, Kurihara M, Niemi K, Niermann B, Phelps A V, Pipa A V, Proshina O V, Reuter S, Reuter S, Schaper L, Schulze J, Schulze J, Schulze J, Schulze J, Schulze J, T Hemke, T Mussenbrock, Turner M M, Waskoenig J, Weltmann K D, Z Donkó   +30 more
core   +1 more source

The Effect of Plasma-β on the Heating Mechanisms during Magnetic Reconnection in Partially Ionized Low Solar Atmosphere

The Astrophysical Journal
We performed numerical simulations of magnetic reconnection with different strengths of magnetic fields from the solar photosphere to the upper chromosphere.
Abdullah Zafar, Lei Ni, Kaifeng Kang, Guanchong Cheng, Jing Ye, Jun Lin, Ahmad Ali, Nadia Imtiaz   +7 more
doaj   +1 more source

Concurrent operation of 10 gyrotrons at W7-X experience and improvement opportunities

EPJ Web of Conferences, 2018
At the stellarator Wendelstein 7-X (W7-X) Electron Cyclotron Resonance Heating (ECRH) is the main heating system for steady-state operation and was the only available heating system during the operation phase OP1.2a in 2017.
Braune H., Brunner K.J., Laqua H.P., Marsen S., Moseev D., Noke F., Purps F., Schneider N., Schulz T., Stange T., Uhren P., Wilde F.   +11 more
doaj   +1 more source

Visualising gas heating from an RF plasma loudspeaker [PDF]

, 2010
In an electro-acoustic transduction mechanism, an ac modulation (here in the audio frequency range) of the electric field in an atmospheric pressure air plasma gives rise to a rapid increase in the gas temperature and dimensions of the gas volume.
Braithwaite, N. St.J, Johnson, P. C., Moore, J., Naidis, G. V., Sharp, D., Sutton, Y.   +5 more
core