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. Mizuta; T. Sugiyama; S. Matsukiyo; T. Moritaka; T. Sano; H. Takabe

doi:10.1063/1.4944925

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

Physics

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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 language	English
Article number	032126
Number of pages	6
Journal	Physics of Plasmas
Volume	23
Issue number	3
DOIs	https://doi.org/10.1063/1.4944925
Publication status	Published - 30 Mar 2016

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© 2016, AIP Publishing LLC. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

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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., ... Takabe, H. (2016). Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability. Physics of Plasmas, 23(3), Article 032126. https://doi.org/10.1063/1.4944925

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

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.",

author = "Y. Kuramitsu and N. Ohnishi and Y. Sakawa and T. Morita and H. Tanji and T. Ide and K. Nishio and Gregory, {C. D.} and Waugh, {J. N.} and N. Booth and R. Heathcote and C. Murphy and G. Gregori and J. Smallcombe and C. Barton and A. Dizi{\`e}re and M. Koenig and N. Woolsey and Y. Matsumoto and A. Mizuta and T. Sugiyama and S. Matsukiyo and T. Moritaka and T. Sano and H. Takabe",

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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

TY - JOUR

T1 - Model experiment of magnetic field amplification in laser-produced plasmas via the Richtmyer-Meshkov instability

AU - Kuramitsu, Y.

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.

N1 - © 2016, AIP Publishing LLC. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

PY - 2016/3/30

Y1 - 2016/3/30

N2 - 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.

AB - 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.

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U2 - 10.1063/1.4944925

DO - 10.1063/1.4944925

M3 - Article

AN - SCOPUS:84966298468

SN - 1070-664X

VL - 23

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 3

M1 - 032126

ER -

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

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