Particle-in-cell simulations of parametric decay instabilities near the upper hybrid layer

M.G. Senstius*, S. K. Nielsen, R. G. L. Vann

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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Abstract

The particle-in-cell (PIC) code EPOCH is used to simulate parametric decay instabilities (PDIs) converting a 105 GHz microwave X-mode pump wave into electrostatic daughter waves at the upper hybrid (UH) layer of a fusion plasma in 1D. The resulting fields are analyzed, identifying modes in f- and k-space, and estimating their spectral power as a function of pump wave intensity. Both linearly and nonlinearly converted modes are identified and their characteristics agree with literature. A dipole approximation employed in literature appears to be unjust.
Original languageEnglish
Article number01010
JournalEPJ Web of Conferences
Volume203
Number of pages4
ISSN2100-014X
DOIs
Publication statusPublished - 2019
Event20th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating - Greifswald, Germany
Duration: 14 May 201818 May 2018

Workshop

Workshop20th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
CountryGermany
CityGreifswald
Period14/05/201818/05/2018

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