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On possibility of strong anomalous damping of an ordinary pump wave in the electron cyclotron resonance heating experiments due to the low-power-threshold parametric decay instability
| Content Provider | Scilit |
|---|---|
| Author | Gusakov, Evgeniy Z. Popov, Alexei Yu |
| Copyright Year | 2020 |
| Description | Journal: Plasma Physics and Controlled Fusion We analyze the low power-threshold parametric decay instability of an ordinary wave in the first electron cyclotron harmonic frequency range, which leads to the excitation of a localized upper hybrid (UH) wave and a lower hybrid wave. We investigate its transition into the saturation mode due to both the pump wave depletion and the cascade of successive secondary decays. A set of equations describing this nonlinear frequency down-conversion of the primary UH wave is derived and then solved both analytically and numerically under the conditions typical of the off-axis O1-mode electron cyclotron resonance heating experiments in the FTU tokamak. The possibility of a strong anomalous absorption of the pump power in the case of even-step cascade of secondary decays is discovered. |
| Related Links | https://iopscience.iop.org/article/10.1088/1361-6587/abc97c/pdf |
| ISSN | 07413335 |
| e-ISSN | 13616587 |
| DOI | 10.1088/1361-6587/abc97c |
| Journal | Plasma Physics and Controlled Fusion |
| Issue Number | 1 |
| Volume Number | 63 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-11-11 |
| Access Restriction | Open |
| Subject Keyword | Journal: Plasma Physics and Controlled Fusion Nuclear Energy and Engineering Electron Cyclotron Resonance Heating Experiments Cyclotron Resonance Heating |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Nuclear Energy and Engineering |
