VNIIEF achievements on ultra-high magnetic fields generation

Быков, А. И.; Dolotenko, M.I.; Kolokol'Chikov, N. P.; Селемир, В. Д.; Tatsenko, O. M.

doi:10.1016/s0921-4526(00)00723-7

Cited by 42 publications

(21 citation statements)

References 2 publications

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“…To be effective for the inertial confinement fusion (ICF) range of plasma parameters (density several times higher than that of solid deuterium-tritium (DT), temperature from 7 to 10 keV), magnetic fields need to be $100 MG, beyond the reach of conventional technology of magnetic flux compression (MFC). [2][3][4][5][6][7] As first noted in Refs. 8-10, one can use the MFC method 2-7 thereby facilitating the ICF ignition if the liner is driven by the multi-Mbar pressures accessible to the present generation of high-energy lasers or pulsed power generators.…”

Section: Introductionmentioning

confidence: 73%

Magnetic flux and heat losses by diffusive, advective, and Nernst effects in magnetized liner inertial fusion-like plasma

Velikovich

Giuliani

Zalesak³

2015

Physics of Plasmas

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The magnetized liner inertial fusion (MagLIF) approach to inertial confinement fusion [Slutz et al., Phys. Plasmas 17, 056303 (2010); Cuneo et al., IEEE Trans. Plasma Sci. 40, 3222 (2012)] involves subsonic/isobaric compression and heating of a deuterium-tritium plasma with frozen-in magnetic flux by a heavy cylindrical liner. The losses of heat and magnetic flux from the plasma to the liner are thereby determined by plasma advection and gradient-driven transport processes, such as thermal conductivity, magnetic field diffusion, and thermomagnetic effects. Theoretical analysis based on obtaining exact self-similar solutions of the classical collisional Braginskii's plasma transport equations in one dimension demonstrates that the heat loss from the hot compressed magnetized plasma to the cold liner is dominated by transverse heat conduction and advection, and the corresponding loss of magnetic flux is dominated by advection and the Nernst effect. For a large electron Hall parameter (x e s e ) 1), the effective diffusion coefficients determining the losses of heat and magnetic flux to the liner wall are both shown to decrease with x e s e as does the Bohm diffusion coefficient cT=ð16eBÞ, which is commonly associated with low collisionality and two-dimensional transport. We demonstrate how this family of exact solutions can be used for verification of codes that model the MagLIF plasma dynamics. V C 2015 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 73%

Magnetic flux and heat losses by diffusive, advective, and Nernst effects in magnetized liner inertial fusion-like plasma

Velikovich

Giuliani

Zalesak³

2015

Physics of Plasmas

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“…The Humboldt Magnetic Field Centre in Berlin [36] and Tokyo University [37] are presently running such facilities. Even higher magnetic fields can be generated by an explosive-driven flux compression technique allowing optical and magnetization experiments in the 10 MG range with a few ms, the absolute record being 2800 T obtained at the Russian Federal Nuclear Centre (VNIIEF) [38]. The experiments presented below were performed at the LNCMP.…”

Section: Review Of the Existing High Magnetic Field Systemsmentioning

confidence: 99%

The Spin Crossover Phenomenon Under High Magnetic Field

Bousseksou

Varret

Goiran

et al. 2004

Topics in Current Chemistry

139

109

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“…State-of-the-art magnets nowadays allow generation of B-fields in the 10-300 T range, depending on their static/pulsed or destructive/non-destructive character [17]. However, reaching, or exceeding the 1 kT level, as required for some high-energy-density or atomic physics applications, is much more challenging, unless resorting to large-scale Z-pinch machines [18,19] or explosive experiments [20]. Likewise, the heavy technical and infrastructure constraints posed by high-performance pulsed magnets (exceeding 100 T) make them ill-suited to the compactness of laser experiments.…”

Section: Introductionmentioning

confidence: 99%

Laser-driven platform for generation and characterization of strong quasi-static magnetic fields

et al. 2015

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Quasi-static magnetic-fields up to 800 T are generated in the interaction of intense laser pulses (500 J, 1 ns, − 10 W cm 17 2 ) with capacitor-coil targets of different materials. The reproducible magnetic-field peak and rise-time, consistent with the laser pulse duration, were accurately inferred from measurements with GHz-bandwidth inductor pickup coils (B-dot probes). Results from Faraday rotation of polarized optical laser light and deflectometry of energetic proton beams are consistent with the B-dot probe measurements at the early stages of the target charging, up to ≈ t 0.35 ns, and then are disturbed by radiation and plasma effects. The field has a dipole-like distribution over a characteristic volume of 1 mm 3 , which is consistent with theoretical expectations. These results demonstrate a very efficient conversion of the laser energy into magnetic fields, thus establishing a robust laser-driven platform for reproducible, well characterized, generation of quasi-static magnetic fields at the kT-level, as well as for magnetization and accurate probing of high-energy-density samples driven by secondary powerful laser or particle beams.

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VNIIEF achievements on ultra-high magnetic fields generation

Cited by 42 publications

References 2 publications

Magnetic flux and heat losses by diffusive, advective, and Nernst effects in magnetized liner inertial fusion-like plasma

Magnetic flux and heat losses by diffusive, advective, and Nernst effects in magnetized liner inertial fusion-like plasma

The Spin Crossover Phenomenon Under High Magnetic Field

Laser-driven platform for generation and characterization of strong quasi-static magnetic fields

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