The problem of standing wave formation by superposing two counter-propagating whistler waves in an overdense plasma, studied recently Sano et al. (Phys. Rev. E 100, 053205 (2019) and Phys. 101, 013206 (2020)), has been revisited the relativistic limit. A detailed theory along with simulation performed to study interaction counter propagating relativistically intense waves. explains such process...

In the initial phases of the Levitated Dipole Experiment (LDX), multiple frequency ECRH (with frequencies between 2.45 and 28 GHz) will be used to produce a population of energetic electrons at high-β. Use of multiple frequency ECRH in mirror experiments have shown a reduction in plasma turbulence and increased heating efficiency. The pressure profile will be controlled by adjusting the relativ...

In overdense plasma for which the plasma frequency exceeds the cyclotron frequency, X-mode, nearperpendicular cyclotron emission does not propagate to the outboard plasma edge. However, under these conditions it remains possible for electron Bernstein waves (EBWs) to transmit emitted radiation from central plasma to the plasma exterior via a mode conversion to electromagnetic waves near the pla...

An Electromagnetic (EM) pulse falling on a plasma medium from vacuum can either reflect or propagate inside the depending whether it is overdense underdense. In magnetised plasma, however, there are usually several pass and stop bands for EM wave orientation of magnetic field with respect to propagation direction. The while propagating in excite electrostatic disturbances [1, 2]. this work Part...

The formation of plasma channels with nonuniformity of about ± 3.5% has been demonstrated. The channels had a density of 1.2×10 cm with a radius of 15 μm and with length ≥ 2.5 mm. The channels were formed by 0.3 J, 100 ps laser pulses in a nonflowing gas, contained in a cylindrical chamber. The laser beam passed through the chamber along its axis via pinholes in the chamber walls. A plasma chan...

Proper coupling of the rf power to the plasma in an electron-cyclotron resonance (ECR) ion source is probably the most important factor in achieving satisfactory performance of overdense plasmas in high-current ECR sources. Poor coupler design can lead to a variety of undesirable effects such as high reflected power, low plasma density, unstable operation, and poor performance. Scientific Solut...

Abstract High-resolution and high-cadence observations have shown that Alfvén waves are ubiquitous in the solar atmosphere. Theoretical works suggest their ability to transfer large energy fluxes from photosphere corona wind. In this proof-of-concept Letter we show torsional can induce formation of filamentary plasma structures corona. We perform high-resolution 3D ideal MHD simulations an init...

The Space Plasma Exploration by Active Radar (SPEAR) facility has successfully operated in the high-power heater and low-power radar modes and has returned its first results. The high-power results include observations of SPEAR-induced ion and plasma line spectral enhancements recorded by the EISCAT Svalbard UHF incoherent scatter radar system (ESR), which is collocated with SPEAR. These SPEAR-...