Features of Turbulence Excited by Pulsed High-Frequency Pump in a Magnetoplasma
| Autor: | I. Yu. Zudin, M. E. Gushchin, A. V. Strikovskiy, S. V. Korobkov, I. A. Petrova, A. N. Katkov, V. V. Kochedykov |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | JETP Letters. 116:41-47 |
| ISSN: | 1090-6487 0021-3640 |
| DOI: | 10.1134/s0021364022601051 |
| Popis: | Turbulence developed in a magnetoplasma modified by a high-power high-frequency pulse fed to a loop antenna is discovered and studied on the large-scale KROT plasma device. Turbulence is manifested in the excitation of the electron density and magnetic field pulsations, deep self-modulation of the pump wave, and modulation of probe waves passing through the modified plasma region. The space–time characteristics of turbulence are determined using correlated plasma density measurements by a pair of miniature microwave resonator probes and a magnetic probe. It is established that turbulence is excited only in the transparency band of the dense magnetoplasma to electromagnetic radiation: turbulent perturbations of the density and magnetic field exist during pumping at frequencies lower than the electron cyclotron frequency and are absent at pumping frequencies exceeding the electron cyclotron frequency. |
| Databáze: | OpenAIRE |
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