Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks

J. S. Ross; S. H. Glenzer; P. Amendt; R. Berger; L. Divol; N. L. Kugland; O. L. Landen; C. Plechaty; B. Remington; D. Ryutov; W. Rozmus; D. H. Froula; G. Fiksel; C. Sorce; Y. Kuramitsu; T. Morita; Y. Sakawa; H. Takabe; R. P. Drake; M. Grosskopf; C. Kuranz; G. Gregori; J. Meinecke; C. D. Murphy; M. Koenig; A. Pelka; A. Ravasio; T. Vinci; E. Liang; R. Presura; Anatoly Spitkovsky; F. Miniati; H. S. Park

doi:10.1063/1.3694124

Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks

J. S. Ross, S. H. Glenzer, P. Amendt, R. Berger, L. Divol, N. L. Kugland, O. L. Landen, C. Plechaty, B. Remington, D. Ryutov, W. Rozmus, D. H. Froula, G. Fiksel, C. Sorce, Y. Kuramitsu, T. Morita, Y. Sakawa, H. Takabe, R. P. Drake, M. GrosskopfC. Kuranz, G. Gregori, J. Meinecke, C. D. Murphy, M. Koenig, A. Pelka, A. Ravasio, T. Vinci, E. Liang, R. Presura, Anatoly Spitkovsky, F. Miniati, H. S. Park

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Abstract

A series of Omega experiments have produced and characterized high velocity counter-streaming plasma flows relevant for the creation of collisionless shocks. Single and double CH₂ foils have been irradiated with a laser intensity of ∼ 10¹⁶ W/cm². The laser ablated plasma was characterized 4 mm from the foil surface using Thomson scattering. A peak plasma flow velocity of 2000 km/s, an electron temperature of ∼ 110 eV, an ion temperature of ∼ 30 eV, and a density of ∼ 10¹⁸ cm ^-3 were measured in the single foil configuration. Significant increases in electron and ion temperatures were seen in the double foil geometry. The measured single foil plasma conditions were used to calculate the ion skin depth, c/ω_pi ∼ 0.16 mm, the interaction length, l_int, of ∼ 8 mm, and the Coulomb mean free path, λ_mfp ∼ 27 mm. With c/ω_pi ≪ l _int ≪λ_mfp, we are in a regime where collisionless shock formation is possible.

Original language	English (US)
Article number	056501
Journal	Physics of Plasmas
Volume	19
Issue number	5
DOIs	https://doi.org/10.1063/1.3694124
State	Published - May 2012

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.3694124

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Ross, J. S., Glenzer, S. H., Amendt, P., Berger, R., Divol, L., Kugland, N. L., Landen, O. L., Plechaty, C., Remington, B., Ryutov, D., Rozmus, W., Froula, D. H., Fiksel, G., Sorce, C., Kuramitsu, Y., Morita, T., Sakawa, Y., Takabe, H., Drake, R. P., ... Park, H. S. (2012). Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks. Physics of Plasmas, 19(5), Article 056501. https://doi.org/10.1063/1.3694124

@article{705a7d95b6cc439f81b0e39e79879cda,

title = "Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks",

abstract = "A series of Omega experiments have produced and characterized high velocity counter-streaming plasma flows relevant for the creation of collisionless shocks. Single and double CH2 foils have been irradiated with a laser intensity of ∼ 1016 W/cm2. The laser ablated plasma was characterized 4 mm from the foil surface using Thomson scattering. A peak plasma flow velocity of 2000 km/s, an electron temperature of ∼ 110 eV, an ion temperature of ∼ 30 eV, and a density of ∼ 1018 cm -3 were measured in the single foil configuration. Significant increases in electron and ion temperatures were seen in the double foil geometry. The measured single foil plasma conditions were used to calculate the ion skin depth, c/ωpi ∼ 0.16 mm, the interaction length, lint, of ∼ 8 mm, and the Coulomb mean free path, λmfp ∼ 27 mm. With c/ωpi ≪ l int ≪λmfp, we are in a regime where collisionless shock formation is possible.",

author = "Ross, {J. S.} and Glenzer, {S. H.} and P. Amendt and R. Berger and L. Divol and Kugland, {N. L.} and Landen, {O. L.} and C. Plechaty and B. Remington and D. Ryutov and W. Rozmus and Froula, {D. H.} and G. Fiksel and C. Sorce and Y. Kuramitsu and T. Morita and Y. Sakawa and H. Takabe and Drake, {R. P.} and M. Grosskopf and C. Kuranz and G. Gregori and J. Meinecke and Murphy, {C. D.} and M. Koenig and A. Pelka and A. Ravasio and T. Vinci and E. Liang and R. Presura and Anatoly Spitkovsky and F. Miniati and Park, {H. S.}",

note = "Funding Information: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 and was partially funded by the Laboratory Directed Research and Development Program under project tracking code 11-ERD-054. G. Gregori acknowledges funding from the European Research Council under the European Community{\textquoteright}s Seventh Framework Programme (FP7/2007–2013)/ERC Grant Agreement No. 256973.",

year = "2012",

month = may,

doi = "10.1063/1.3694124",

language = "English (US)",

volume = "19",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics Publising LLC",

number = "5",

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Ross, JS, Glenzer, SH, Amendt, P, Berger, R, Divol, L, Kugland, NL, Landen, OL, Plechaty, C, Remington, B, Ryutov, D, Rozmus, W, Froula, DH, Fiksel, G, Sorce, C, Kuramitsu, Y, Morita, T, Sakawa, Y, Takabe, H, Drake, RP, Grosskopf, M, Kuranz, C, Gregori, G, Meinecke, J, Murphy, CD, Koenig, M, Pelka, A, Ravasio, A, Vinci, T, Liang, E, Presura, R, Spitkovsky, A, Miniati, F & Park, HS 2012, 'Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks', Physics of Plasmas, vol. 19, no. 5, 056501. https://doi.org/10.1063/1.3694124

TY - JOUR

T1 - Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks

AU - Ross, J. S.

AU - Glenzer, S. H.

AU - Amendt, P.

AU - Berger, R.

AU - Divol, L.

AU - Kugland, N. L.

AU - Landen, O. L.

AU - Plechaty, C.

AU - Remington, B.

AU - Ryutov, D.

AU - Rozmus, W.

AU - Froula, D. H.

AU - Fiksel, G.

AU - Sorce, C.

AU - Kuramitsu, Y.

AU - Morita, T.

AU - Sakawa, Y.

AU - Takabe, H.

AU - Drake, R. P.

AU - Grosskopf, M.

AU - Kuranz, C.

AU - Gregori, G.

AU - Meinecke, J.

AU - Murphy, C. D.

AU - Koenig, M.

AU - Pelka, A.

AU - Ravasio, A.

AU - Vinci, T.

AU - Liang, E.

AU - Presura, R.

AU - Spitkovsky, Anatoly

AU - Miniati, F.

AU - Park, H. S.

N1 - Funding Information: This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 and was partially funded by the Laboratory Directed Research and Development Program under project tracking code 11-ERD-054. G. Gregori acknowledges funding from the European Research Council under the European Community’s Seventh Framework Programme (FP7/2007–2013)/ERC Grant Agreement No. 256973.

PY - 2012/5

Y1 - 2012/5

N2 - A series of Omega experiments have produced and characterized high velocity counter-streaming plasma flows relevant for the creation of collisionless shocks. Single and double CH2 foils have been irradiated with a laser intensity of ∼ 1016 W/cm2. The laser ablated plasma was characterized 4 mm from the foil surface using Thomson scattering. A peak plasma flow velocity of 2000 km/s, an electron temperature of ∼ 110 eV, an ion temperature of ∼ 30 eV, and a density of ∼ 1018 cm -3 were measured in the single foil configuration. Significant increases in electron and ion temperatures were seen in the double foil geometry. The measured single foil plasma conditions were used to calculate the ion skin depth, c/ωpi ∼ 0.16 mm, the interaction length, lint, of ∼ 8 mm, and the Coulomb mean free path, λmfp ∼ 27 mm. With c/ωpi ≪ l int ≪λmfp, we are in a regime where collisionless shock formation is possible.

AB - A series of Omega experiments have produced and characterized high velocity counter-streaming plasma flows relevant for the creation of collisionless shocks. Single and double CH2 foils have been irradiated with a laser intensity of ∼ 1016 W/cm2. The laser ablated plasma was characterized 4 mm from the foil surface using Thomson scattering. A peak plasma flow velocity of 2000 km/s, an electron temperature of ∼ 110 eV, an ion temperature of ∼ 30 eV, and a density of ∼ 1018 cm -3 were measured in the single foil configuration. Significant increases in electron and ion temperatures were seen in the double foil geometry. The measured single foil plasma conditions were used to calculate the ion skin depth, c/ωpi ∼ 0.16 mm, the interaction length, lint, of ∼ 8 mm, and the Coulomb mean free path, λmfp ∼ 27 mm. With c/ωpi ≪ l int ≪λmfp, we are in a regime where collisionless shock formation is possible.

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UR - http://www.scopus.com/inward/citedby.url?scp=84862141996&partnerID=8YFLogxK

U2 - 10.1063/1.3694124

DO - 10.1063/1.3694124

M3 - Article

AN - SCOPUS:84862141996

SN - 1070-664X

VL - 19

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5

M1 - 056501

ER -

Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks

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