Simulation of the nonlinear dynamics of grid sheath oscillations in double plasma devices

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872514· OSTI ID:544849

Rohde, A; Piel, A; Klostermann, H ^[1]

---

1. Institut fuer Experimentalphysik, Christian--Albrechts--Universitaet zu Kiel, 24098 Kiel (Germany)

The oscillation of ion bunches around a strongly negative grid in a double plasma device is studied with one{endash}dimensional particle{endash}in{endash}cell simulation. The system exhibits feedback amplified virtual anode oscillations in the target chamber. The undriven system is shown to perform relaxation processes which can be described by the van der Pol equation for high nonlinearity. The periodically driven system exhibits nonlinear phenomena like mode locking and periodic pulling, which are in quantitative agreement with theoretical predictions for the driven van der Pol oscillator. For large driver amplitudes period doubling and weak chaos are found. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 544849
• Journal Information: Physics of Plasmas, Vol. 4, Issue 11; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
PLASMA SHEATH
OSCILLATIONS
SIMULATION
PLASMA WAVES
PLASMA SIMULATION
PLASMA DENSITY
DYNAMICS