Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability

Y. Kuramitsu, N. Ohnishi, Y. Sakawa, T. Morita, H. Tanji, T. Ide, K. Nishio, C. D. Gregory, J. N. Waugh, N. Booth, R. Heathcote, C. Murphy, G. Gregori, J. Smallcombe, C. Barton, A. Dizière, M. Koenig, N. Woolsey, Y. Matsumoto, A. MizutaT. Sugiyama, S. Matsukiyo, T. Moritaka, T. Sano, H. Takabe

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A model experiment of magnetic field amplification (MFA) via the Richtmyer-Meshkov instability (RMI) in supernova remnants (SNRs) was performed using a high-power laser. In order to account for very-fast acceleration of cosmic rays observed in SNRs, it is considered that the magnetic field has to be amplified by orders of magnitude from its background level. A possible mechanism for the MFA in SNRs is stretching and mixing of the magnetic field via the RMI when shock waves pass through dense molecular clouds in interstellar media. In order to model the astrophysical phenomenon in laboratories, there are three necessary factors for the RMI to be operative: a shock wave, an external magnetic field, and density inhomogeneity. By irradiating a double-foil target with several laser beams with focal spot displacement under influence of an external magnetic field, shock waves were excited and passed through the density inhomogeneity. Radiative hydrodynamic simulations show that the RMI evolves as the density inhomogeneity is shocked, resulting in higher MFA.

Original languageEnglish
Article number032126
JournalPhysics of Plasmas
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 2016

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laser plasmas
magnetic fields
supernova remnants
shock waves
inhomogeneity
molecular clouds
high power lasers
cosmic rays
foils
astrophysics
hydrodynamics
laser beams
simulation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability. / Kuramitsu, Y.; Ohnishi, N.; Sakawa, Y.; Morita, T.; Tanji, H.; Ide, T.; Nishio, K.; Gregory, C. D.; Waugh, J. N.; Booth, N.; Heathcote, R.; Murphy, C.; Gregori, G.; Smallcombe, J.; Barton, C.; Dizière, A.; Koenig, M.; Woolsey, N.; Matsumoto, Y.; Mizuta, A.; Sugiyama, T.; Matsukiyo, S.; Moritaka, T.; Sano, T.; Takabe, H.

In: Physics of Plasmas, Vol. 23, No. 3, 032126, 03.2016.

Research output: Contribution to journalArticle

Kuramitsu, Y, Ohnishi, N, Sakawa, Y, Morita, T, Tanji, H, Ide, T, Nishio, K, Gregory, CD, Waugh, JN, Booth, N, Heathcote, R, Murphy, C, Gregori, G, Smallcombe, J, Barton, C, Dizière, A, Koenig, M, Woolsey, N, Matsumoto, Y, Mizuta, A, Sugiyama, T, Matsukiyo, S, Moritaka, T, Sano, T & Takabe, H 2016, 'Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability', Physics of Plasmas, vol. 23, no. 3, 032126. https://doi.org/10.1063/1.4944925
Kuramitsu, Y. ; Ohnishi, N. ; Sakawa, Y. ; Morita, T. ; Tanji, H. ; Ide, T. ; Nishio, K. ; Gregory, C. D. ; Waugh, J. N. ; Booth, N. ; Heathcote, R. ; Murphy, C. ; Gregori, G. ; Smallcombe, J. ; Barton, C. ; Dizière, A. ; Koenig, M. ; Woolsey, N. ; Matsumoto, Y. ; Mizuta, A. ; Sugiyama, T. ; Matsukiyo, S. ; Moritaka, T. ; Sano, T. ; Takabe, H. / Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability. In: Physics of Plasmas. 2016 ; Vol. 23, No. 3.
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AU - Ohnishi, N.

AU - Sakawa, Y.

AU - Morita, T.

AU - Tanji, H.

AU - Ide, T.

AU - Nishio, K.

AU - Gregory, C. D.

AU - Waugh, J. N.

AU - Booth, N.

AU - Heathcote, R.

AU - Murphy, C.

AU - Gregori, G.

AU - Smallcombe, J.

AU - Barton, C.

AU - Dizière, A.

AU - Koenig, M.

AU - Woolsey, N.

AU - Matsumoto, Y.

AU - Mizuta, A.

AU - Sugiyama, T.

AU - Matsukiyo, S.

AU - Moritaka, T.

AU - Sano, T.

AU - Takabe, H.

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