Laser-Driven magnetic-flux compression in high-energy-density plasmas

O. V. Gotchev; P. Y. Chang; J. P. Knauer; D. D. Meyerhofer; O. Polomarov; J. Frenje; C. K. Li; M. J.E. Manuel; R. D. Petrasso; J. R. Rygg; F. H. Séguin; R. Betti

doi:10.1103/PhysRevLett.103.215004

Laser-Driven magnetic-flux compression in high-energy-density plasmas

O. V. Gotchev, P. Y. Chang, J. P. Knauer, D. D. Meyerhofer, O. Polomarov, J. Frenje, C. K. Li, M. J.E. Manuel, R. D. Petrasso, J. R. Rygg, F. H. Séguin, R. Betti

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

111 Citations (Scopus)

Abstract

The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D3He target. Line-averaged magnetic fields between 30 and 40 MG were observed.

Original language	English
Article number	215004
Journal	Physical review letters
Volume	103
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.103.215004
Publication status	Published - 2009 Nov 18

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.103.215004

Cite this

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title = "Laser-Driven magnetic-flux compression in high-energy-density plasmas",

abstract = "The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D3He target. Line-averaged magnetic fields between 30 and 40 MG were observed.",

author = "Gotchev, {O. V.} and Chang, {P. Y.} and Knauer, {J. P.} and Meyerhofer, {D. D.} and O. Polomarov and J. Frenje and Li, {C. K.} and Manuel, {M. J.E.} and Petrasso, {R. D.} and Rygg, {J. R.} and S{\'e}guin, {F. H.} and R. Betti",

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T1 - Laser-Driven magnetic-flux compression in high-energy-density plasmas

AU - Gotchev, O. V.

AU - Chang, P. Y.

AU - Knauer, J. P.

AU - Meyerhofer, D. D.

AU - Polomarov, O.

AU - Frenje, J.

AU - Li, C. K.

AU - Manuel, M. J.E.

AU - Petrasso, R. D.

AU - Rygg, J. R.

AU - Séguin, F. H.

AU - Betti, R.

PY - 2009/11/18

Y1 - 2009/11/18

N2 - The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D3He target. Line-averaged magnetic fields between 30 and 40 MG were observed.

AB - The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D3He target. Line-averaged magnetic fields between 30 and 40 MG were observed.

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Laser-Driven magnetic-flux compression in high-energy-density plasmas

Abstract

All Science Journal Classification (ASJC) codes

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