Publication:
Laboratory investigation of particle acceleration and magnetic field compression in collisionless colliding fast plasma flows

Файлы
W2951287928.pdf(1.44 MB)
Дата
2019
Авторы
Higginson, D. P.
Ruyer, C.
Riquier, R.
Moreno, Q.
Korneev, P. h.
Pikuz, S. A.
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Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
In many natural phenomena in space (cosmic-rays, fast winds), non-thermal ion populations are produced, with wave-particle interactions in self-induced electromagnetic turbulence being suspected to be mediators. However, the processes by which the electromagnetic energy is bestowed upon the particles is debated, and in some cases requires field compression. Here we show that laboratory experiments using high-power lasers and external strong magnetic field can be used to infer magnetic field compression in the interpenetration of two collisionless, high-velocity (0.01-0.1c) quasi-neutral plasma flows. This is evidenced through observed plasma stagnation at the flows collision point, which Particle-in-Cell (PIC) simulations suggest to be the signature of magnetic field compression into a thin layer, followed by its dislocation into magnetic vortices. Acceleration of protons from the plasma collision is observed as well. As a possible scenario, with 1D and 2D PIC simulations we consider a compression of the vortices against dense plasma remnants.
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Laboratory investigation of particle acceleration and magnetic field compression in collisionless colliding fast plasma flows / Higginson, DP [et al.] // Communications Physics. - 2019. - 2. - 10.1038/s42005-019-0160-6
URI
https://www.doi.org/10.1038/s42005-019-0160-6
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85071159256&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000472079600001
 https://openrepository.mephi.ru/handle/123456789/18260
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