Penetration of probe field in heated plasma

Ovchinnikov, K. N.; Uryupin, S. A.

doi:10.1134/s1063784217060202

Cited by 2 publications

(14 citation statements)

References 9 publications

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“…[1,2]). [3,4], because of plasma ground state evolution in time, instead of usual diffusion of weak quasistationary field, subdiffusion takes place if plasma conductivity increases with heating. It is clear that patterns of the heating pulse effect on plasma depend on the evolution of electron and ion temperatures, accompanied by a change in plasma conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…Heating efficiency depends significantly on how rapidly field penetrates into plasma and to what extent field strength decreases at penetration into plasma. [3] In refs. This statement, in particular, was justified in refs.…”

Section: Introductionmentioning

confidence: 99%

“…It is clear that patterns of the heating pulse effect on plasma depend on the evolution of electron and ion temperatures, accompanied by a change in plasma conductivity. [3,4], the features of penetration of weak pulses were studied, when plasma heating by the pulse itself can be ignored. [3,4], where how heating of particles affects the penetration of a weak probe pulse into plasma with time-varying temperature was shown.…”

Section: Introductionmentioning

confidence: 99%

“…This statement, in particular, was justified in refs. [3,4], where how heating of particles affects the penetration of a weak probe pulse into plasma with time-varying temperature was shown. As shown in refs.…”

Section: Introductionmentioning

confidence: 99%

“…As shown in refs. [3,4], because of plasma ground state evolution in time, instead of usual diffusion of weak quasistationary field, subdiffusion takes place if plasma conductivity increases with heating. In contrast, if plasma conductivity decreases during heating, field penetration occurs in the superdiffusion regime.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effect of heat transfer on the penetration of an electromagnetic pulse into a plasma layer and the inverse skin effect

Ovchinnikov

Uryupin

2018

Contributions to Plasma Physics

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Penetration of a heating pulse into a plasma layer was studied using the system of coupled nonlinear equations for electric field, electron, and ion temperatures. Numerical calculations of field structure and temperature evolution are performed both in the absence and in the presence of heat transfer. It is established that heat transfer leads to a more rapid penetration of the field near the illuminated surface of the layer and impairs penetration in regions of the layer far from this surface. We found that heat transfer promotes the creation of more favourable conditions for manifestation of the inverse skin effect. KEYWORDS electromagnetic pulse penetration, electron heating, inverse skin effect, ion heating, plasma layer 1

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of heat transfer on the penetration of an electromagnetic pulse into a plasma layer and the inverse skin effect

Ovchinnikov

Uryupin

2018

Contributions to Plasma Physics

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Penetration of a Heating Electromagnetic Pulse into Plasma in Magnetic Field

2022

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Penetration of a heating pulse of quasistationary electromagnetic field into plasma in constant magnetic field directed along its surface was studied. Weakening of electron heat transfer across the magnetic field leads to more efficient heating of electrons near the plasma surface. As a result, the penetration of the field into the plasma decreases, which is accompanied by suppression of the “inverse” skin effect. Inhomogeneous heating of electrons across the magnetic field leads to generation of an electric field strength component orthogonal to both the magnetic field and the direction of temperature gradient. Appearance of the additional field strength component leads to a change in polarization of the reflected pulse. In a sufficiently strong magnetic field, due to suppression of the electron heat flux and less significant effect of the magnetic field on the ion heat flux, a state with large difference of electron and ion temperatures occurs.

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Penetration of probe field in heated plasma

Cited by 2 publications

References 9 publications

Effect of heat transfer on the penetration of an electromagnetic pulse into a plasma layer and the inverse skin effect

Effect of heat transfer on the penetration of an electromagnetic pulse into a plasma layer and the inverse skin effect

Penetration of a Heating Electromagnetic Pulse into Plasma in Magnetic Field

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