Kinetic model and Vlasov simulation verification of two-ion decay instability

DJ Liu, Q Wang, XM Li, ST Zhang, RJ Cheng, XX Li… - Physical Review E, 2023 - APS
A kinetic theory is developed to describe the longitudinal decay of two-ion decay (TID): The
pump ion-acoustic wave (IAW) decays into two daughter IAWs with a longer wavelength …

Parametric instability driven by weakly trapped particles in nonlinear plasma waves

DHE Dubin - Physical Review Letters, 2018 - APS
This Letter describes a new parametric instability mechanism caused by a distribution f T of
particles trapped in the potential wells of a wave train. The mechanism explains a nonlinear …

[HTML][HTML] Fluid and kinetic nonlinearities of near-acoustic plasma waves

M Affolter, F Anderegg, DHE Dubin, F Valentini… - Physics of …, 2019 - pubs.aip.org
Large amplitude, near-acoustic plasma waves have a temperature-dependent harmonic
content and nonlinear frequency shifts. On cold plasmas, experiments show that fluid …

[HTML][HTML] Nonlinear Trivelpiece-Gould waves: Frequency, functional form, and stability

DHE Dubin, A Ashourvan - Physics of Plasmas, 2015 - pubs.aip.org
This paper considers the frequency, spatial form, and stability of nonlinear Trivelpiece-Gould
(TG) waves on a cylindrical plasma column of length L and radius rp, treating both traveling …

Trapped particle effects in the parametric instability of near-acoustic plasma waves

M Affolter, F Anderegg, DHE Dubin, F Valentini… - Physical Review Letters, 2018 - APS
Quantitative experiments on the parametric decay instability of near-acoustic plasma waves
provide strong evidence that trapped particles reduce the instability threshold below fluid …

Experiments and Theory on Nonlinear Wave Couplings and the Saltpeter Screening Effect

CF Driscoll - 2018 - osti.gov
This Final Technical Report gives a brief overview of the apparatus upgrades, experimental
results, and theory development which was funded by DOE grant DE-SC0008693 from 1 …