Simulation of parametric decay instability excited by oscillating pump near lower hybrid frequency
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Plasmas"
DOI: 10.1063/5.0149450
Abstract: Parametric decay instability of lower hybrid waves plays an important role in plasma heating. Simulation of such instability requires inclusion of both electron and ion kinetics with a realistic mass ratio. In this work, the… read more here.
Keywords: instability; decay instability; decay; simulation ... See more keywords
Stabilization of low-threshold two-plasmon parametric decay instability at oblique incidence of a microwave pump beam onto the plasma
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Plasmas"
DOI: 10.1063/5.0155945
Abstract: It is shown that with an oblique incidence of a pump microwave in X2-mode electron cyclotron plasma heating (ECRH) experiments, the threshold power of a parametric decay instability (PDI) leading to excitation of two trapped… read more here.
Keywords: oblique incidence; decay instability; pump; pump beam ... See more keywords
Parametric decay of a gyrotron beam due to a rotating magnetic island in ASDEX Upgrade
Sign Up to like & getrecommendations! Published in 2024 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/ad9847
Abstract: We investigate parametric decay instabilities (PDIs) of electron cyclotron waves due to a rotating neoclassical tearing mode (NTM) in ASDEX Upgrade. Strong scattering characteristic of PDIs is observed in a discharge where a (2,1) NTM… read more here.
Keywords: gyrotron; due rotating; parametric decay; magnetic island ... See more keywords