Dynamic stabilization of filamentation instability

0501408 - FZÚ 2019 RIV US eng J - Journal Article
Kawata, S. - Gu, Yanjun - Li, X.F. - Karino, T. - Katoh, H. - Limpouch, J. - Klimo, O. - Margarone, Daniele - Yu, Q. - Kong, Q. - Weber, Stefan A. - Bulanov, S. - Andreev, A.
Dynamic stabilization of filamentation instability.
Physics of Plasmas. Roč. 25, č. 1 (2018), s. 1-6, č. článku 011601. ISSN 1070-664X. E-ISSN 1089-7674
R&D Projects: GA MŠMT LQ1606; GA MŠMT EF15_003/0000449; GA MŠMT EF16_013/0001793
Grant - others:OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449; OP VVV - ELITAS(XE) CZ.02.1.01/0.0/0.0/16_013/0001793
Institutional support: RVO:68378271
Keywords : Rayleigh-Taylor instability * ion-beams * fusion
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.913, year: 2018

The paper presents a study on dynamic stabilization of filamentation instability driven by an electron beam introduced into a plasma. The results presented in the paper demonstrate that the filamentation instability is successfully stabilized by the dynamic stabilization mechanism, in which the electron beam axis oscillates. The dynamic stabilization mechanism for plasma instability was proposed in the paper [Kawata, Phys. Plasmas 19, 024503 (2012)]. In general, instabilities emerge from the perturbations of the physical quantity. Normally the perturbation phase is unknown so that the instability growth rate is discussed. However, if the perturbation phase is known, the instability growth can be controlled by a superimposition of perturbations imposed actively: if the perturbation is introduced by, for example, a driving beam axis oscillation or so, the perturbation phase can be controlled and the instability growth is mitigated by the superimposition of the growing perturbations.
Permanent Link: http://hdl.handle.net/11104/0293437