On the possibility of laboratory shock wave studies of the equation of state of a material at gigabar pressures with beams of laser-accelerated particles

Gus’kov, S. Yu.

doi:10.1134/s0021364014140069

Cited by 12 publications

(15 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the possibility of transition of studies of EOS in laboratory conditions to a new, gigabar pressure level has been substantiated. This work continues the research of previous experiments [1,4,5,19] based on numerical simulations in a broader formulation of the problem, including the study of the effect of the spectrum of fast electrons and target matter on the characteristics of extremely powerful fast-electron-driven shockwave. Beams of laser-accelerated electrons with non-relativistic and relativistic energies are considered.…”

Section: Introductionsupporting

confidence: 55%

“…in which the laser radiation intensity I L (19) is measured in units of 10 19 W cm −2 . In turn, the spectrum of fast electrons and, as a consequence, laser energy conversion into the energy of fast electrons are sensitive to various aspects of laser interaction with target.…”

Section: Problem Statement and Features Of Shock Wave Generation Duri...mentioning

confidence: 99%

“…In [19] the models of shockwave generation during the heating of matter by a flux of laser-accelerated fast electrons are developed as applied to EOS experiments. They show the possibility of generating a plane, stationary shock wave with a pressure exceeding a gigabar level under the impact of laser pulse with an intensity exceeding 10 17 W cm −2 on the aluminium target.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Gigabar shock wave driven by laser-accelerated electron stream

Gus’kov¹,

Kuchugov²,

Yakhin³

et al. 2022

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

The theoretical and computational results of the generation of a powerful shock wave with a pressure behind the front exceeding a gigabar level in the half-space of a solid when the boundary layer is heated by a flux of laser-accelerated electrons are presented. The influence of the energy flux density of the heating stream, the characteristic initial energy and the electron spectrum on the characteristics of the shock wave is investigated. The main attention is paid to the generation of an extremely powerful shock wave, which can be applied in experiment to study the equation of state of matter. For this, the requirements for the parameters of a laser pulse that can ensure the propagation of a plane shock wave with a gigabar pressure when a substance is heated by a beam of laser-accelerated fast electrons, taking into account its divergence, are established. It is shown that one of the features of the propagation of a shock wave under the impact of a thermal piston heated by fast electrons consists in the radiation cooling of the peripheral region of the substance covered by the shock wave. An increase in the compression of matter due to radiation cooling leads to a multiple increase in the density of matter in the peripheral region of the shock wave compared to the density at its front. The final result of the work is to substantiate the use of shock waves driven by a beam of laser-accelerated electrons in a laboratory experiment to study the properties of matter, in particular, metals compressed to a density of several tens of g/cc under the action of gigabar pressure.

show abstract

Section: Introductionsupporting

confidence: 55%

Section: Problem Statement and Features Of Shock Wave Generation Duri...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gigabar shock wave driven by laser-accelerated electron stream

Gus’kov¹,

Kuchugov²,

Yakhin³

et al. 2022

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

show abstract

“…Theoretical justification of the possibility to generate gigabar shock wave driven by fast electrons satisfying EOS-experiment requirements using the recent lasers has been done in [1]. To this end, the parameters of required laser beam with an intensity of I L =5•10 16 W/cm 2 have been calculated for laser energy conversion into fast electron energy equal to 0.2 when, therefore, the intensity of fast electron stream is I b =10 16 W/cm 2 .…”

Section: Gigabar Shock Wave Driven By Laser Accelerated Fast Electronmentioning

confidence: 99%

“…The transition to gigabar level of shock wave pressure [1] is essential for the development of shock ignition [2,3] of ICF target and EOS laboratory experiment in the region of quantum corrections to Thomas-Fermi model [4]. EOS investigations at a gigabar pressure level has a fundamental importance for the understanding and adequate modeling of hydrodynamics and thermodynamics of astrophysical objects and compressed ICF target.…”

Section: Introductionmentioning

confidence: 99%

Gigabar shock wave in a laboratory experiment

Gus'kov

2016

J. Inst.

View full text Add to dashboard Cite

The current status of research on generating a powerful shock wave with a pressure of up to several gigabars in a laboratory experiment is reviewed. The focus is on results which give a possibility of shock-wave experiments to study an equation of state of matter (EOS) at the level of gigabar pressure. The proposals are discussed to achieve a plane record-pressure shock wave driven by laser-accelerated fast electrons with respect to EOS-experiment as well as to prospective method of inertial fusion target (ICF) ignition as shock ignition.

show abstract

Dense plasma heating and shock wave generation by a beam of fast electrons

et al. 2015

View full text Add to dashboard Cite

Hot electrons created in laser plasma interaction at laser intensities 1−10 PW cm−2 in shock ignition scheme can deposit their energy in the shell of the target, augmenting the strength of the ignitor shock. Here, we present a model that describes the effect of the spatial profile of fast electron energy deposition on the dynamics of shock wave formation. A criterion of a strong shock formation is obtained for an arbitrary electron beam distribution function. It is shown that the time and the position of the shock formation are defined by the electron average stopping range, while the strength of the shock decreases as the width of electron energy distribution increases. The latter feature is explained by the fast electron target preheat. The conclusions of theoretical model are confirmed in numerical simulations. The pressure, the strength of the shock, and the efficiency of shock generation are calculated for different electron distributions with the same average stopping range.

show abstract

On the possibility of laboratory shock wave studies of the equation of state of a material at gigabar pressures with beams of laser-accelerated particles

Cited by 12 publications

References 12 publications

Gigabar shock wave driven by laser-accelerated electron stream

Gigabar shock wave driven by laser-accelerated electron stream

Gigabar shock wave in a laboratory experiment

Dense plasma heating and shock wave generation by a beam of fast electrons

Contact Info

Product

Resources

About