Kinetic magnetization by fast electrons in laser-produced plasmas at sub-relativistic intensities
| Autor: | Tomasz Chodukowski, S. Borodziuk, R. Dudzak, Jiri Golasowski, Sushil Kumar Singh, J. Hrebicek, P. Pisarczyk, Jiri Skala, E. Krousky, Zofia Kalinowska, T. Medrik, A. Zaras-Szydlowska, Philipp Korneev, Karel Jungwirth, T. Pisarczyk, Jakub Cikhardt, Satyabrata Kar, Hamad Ahmed, S. Gus'kov, Oldrich Renner, Nicolai N. Demchenko, Josef Krasa, Miroslav Pfeifer, Jiri Ullschmied, M. Krus, Libor Juha, Pavel Kubes, Jan Dostál, B. Cikhardtova, Daniel Klir |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Waves in plasmas Plasma Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Magnetic field Magnetization Physics::Plasma Physics 0103 physical sciences Plasma diagnostics Electromagnetic electron wave Electric current Atomic physics 010306 general physics Magnetosphere particle motion |
| Zdroj: | Physics of Plasmas Pisarczyk, T, Gus'kov, S Y, Chodukowski, T, Dudzak, R, Korneev, P, Demchenko, N N, Kalinowska, Z, Dostal, J, Zaras-Szydlowska, A, Borodziuk, S, Juha, L, Cikhardt, J, Krasa, J, Klir, D, Cikhardtova, B, Kubes, P, Krousky, E, Krus, M, Ullschmied, J, Jungwirth, K, Hrebicek, J, Medrik, T, Golasowski, J, Pfeifer, M, Renner, O, Singh, S, Kar, S, Ahmed, H, Skala, J & Pisarczyk, P 2017, ' Kinetic magnetization by fast electrons in laser-produced plasmas at sub-relativistic intensities ', Physics of Plasmas, vol. 24, no. 10, 102711, pp. 1-12 . https://doi.org/10.1063/1.4995044 |
| ISSN: | 1070-664X |
| DOI: | 10.1063/1.4995044 |
| Popis: | The problem of spontaneous magnetic field generation with nanosecond laser pulses raises a series of fundamental questions, including the intrinsic magnetization mechanisms in laser-driven plasmas and the understanding of charge-discharge processes in the irradiated target. These two issues are tightly bound as the charge-discharge processes are defined by the currents, which have in turn a feedback by magnetic fields in the plasma. Using direct polaro-interferometric measurements and theoretical analysis, we show that at parameters related to the PALS laser system (1.315 μ1.315 μm, 350 350 ps, and 1016 1016 W/cm2), fast electrons play a decisive role in the generation of magnetic fields in the laser-driven plasma. Spatial distributions of electric currents were calculated from the measured magnetic field and plasma density distributions. The obtained results revealed the characteristics of strong currents observed in capacitor-coil magnetic generation schemes and open a new approach to fundamental studies related to magnetized plasmas. |
| Databáze: | OpenAIRE |
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