نتایج جستجو برای: cyclotron frequency

تعداد نتایج: 489327  

Journal: :Physics of Plasmas 2022

The effect of ion–neutral collisions on the propagation characteristics electrostatic ion cyclotron (EIC) waves in a partially ionized plasma is investigated. dispersion relation EIC derived using fluid model taking neutral dynamics into account. properties modes, including damping factor, are examined for various ionization degrees and collision frequencies, which determine momentum transferre...

عباس انواری, , محبوب حسین پور, , محمود قرآن نویس, ,

 In this paper we have used plasma electron cyclotron emissions at the second harmonic frequency of extraordinary mode to determine the temperature profile of the plasma produced in IR-T1 Tokamak. The emissions obtained at different frequencies by a 5-channel heterodyne receiver, have been analyzed to determine the spatial variation of the electron temperature on the plasma cross section. The r...

Journal: :IEEE Transactions on Plasma Science 1979

اکبر پروازیان, , مرتضی حسین پور, ,

Magnetically confined plasma can be heated with high power microwave sources. In spherical torus the electron plasma frequency exeeds the electron cyclotron frequency (EC) and, as a consequence, electromagnetic waves at fundamental and low harmonic EC cannot propagate within the plasma. In contrast, electron Bernstein waves (EBWs) readily propagate in spherical torus plasma and are absorbed str...

Journal: :Review of Scientific Instruments 1955

2006
T. Saito

We consider a system that both ends of a charged open string are attached on the Dpbrane with constant electromagnetic fields. Contrary to neutral strings, the quantization of charged strings has not been so far considered well. For this system we construct the spectrum-generating algebra (SGA), which involves the cyclotron frequency. When the cyclotron frequency is set to be zero, the SGA is r...

2014
Miklos Porkolab

The funadmental aspects of RF heating theory is reviewed and a summary of recent experimental results are given. All frequency regimes are covered, from very low frequency magnetic pumping to electron cyclotron resonance heating.

Journal: :Physical review letters 2016
A P Povilus N D DeTal L T Evans N Evetts J Fajans W N Hardy E D Hunter I Martens F Robicheaux S Shanman C So X Wang J S Wurtele

We observe that high-Q electromagnetic cavity resonances increase the cyclotron cooling rate of pure electron plasmas held in a Penning-Malmberg trap when the electron cyclotron frequency, controlled by tuning the magnetic field, matches the frequency of standing wave modes in the cavity. For certain modes and trapping configurations, this can increase the cooling rate by factors of 10 or more....

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