Abstract
The influence of electron-ion collisions on breaking cylindrical nonlinear plasma oscillations is studied. Numerical calculations by the particle method and an analytic analysis by the perturbation method in the weak nonlinearity regime show that, with an increasing collision frequency, the time needed to break plasma oscillations increases. The threshold value of the collision frequency is found exceeding which the density singularity does not arise. In this case, the maximum of the electron density formed outside the axis of the oscillations, the growth of which in the regime of rare collisions leads to the breaking effect, after some growth begins to decrease due to the damping of the oscillations.
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Frolov, A.A., Chizhonkov, E.V. The Effect of Electron-Ion Collisions on Breaking Cylindrical Plasma Oscillations. Math Models Comput Simul 11, 438–450 (2019). https://doi.org/10.1134/S2070048219030104
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DOI: https://doi.org/10.1134/S2070048219030104