Study of shockwave method for diagnosing the radiation fields of laser-driven gold hohlraums

Li, Yongsheng; Lan, Ke; Huo, Wenyi; Lai, Dongxian; Gao, Yaoming; Pei, Wenbing

doi:10.1051/epjconf/20135906003

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…2). The simple semi-analytic model reproduces and explains the difference between Kauffman's and Li's scaling laws that was pointed out in [21,22] and previously explained only by full simulations.…”

Section: F Final Equationssupporting

confidence: 63%

“…A decade ago, there was a renewed interest in these experiments and Kauffman's scaling relation, due to the works by Li et al [21,22]. Following direct full simulations, they claim that Kauffman's scaling relation is not universal, but rather is only correct for Nova long laser pulses (≈2-2.5nsec), in which case their simulations reproduce quantitatively the Nova experiment (also in the work of [30]).…”

Section: The Shock-wave Measurements Experiments and The Dif-ferent S...mentioning

confidence: 99%

“…The relation between the hohlraum radiation temperature and the shock velocity, is a scaling analytical fit to full radiation-hydrodynamic simulations. Based on new performed simulations, this scaling relation was argued to be a non-universal, and specifically to depend on the laser pulse duration [21,22]. In this study we analytically examine the sensitivity of the radiation temperature to shock velocity scaling relation, to the different parameters of the temperature profile, such as the temperature profile's duration and its temporal shape, not just qualitatively but in fully quantitative manner.…”

Section: Introductionmentioning

confidence: 99%

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Radiation drive temperature measurements in aluminium via radiation-driven shock waves: Modeling using self-similar solutions

Heizler,

Shussman,

Fraenkel

2021

Preprint

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We study the phenomena of radiative-driven shock waves using a semi-analytic model based on self similar solutions of the radiative hydrodynamic problem. The relation between a hohlraum drive temperature and resulting ablative shock makes it as a well-know method for estimating the drive temperature. However, the different studies yield different scaling relations between T Rad and D S , based on different simulations. In [T. Shussman and S.I. Heizler, Phys. Plas., 22, 082109 (2015)] we derive full analytic solutions for the subsonic heat wave, that include both the ablation and the shock wave regions. Using this self-similar approach we derive here the T Rad (D S ) for aluminium, using the detailed Hugoniot relations and including transport effects. By our semianalytic model, we find a spread of ≈ 40eV in the T Rad (D S ) curve, as a function of the temperature profile's duration and its temporal profile. Our model agrees with the different experiments and the simulations data, explaining the difference between the different scaling relations that appear in the literature.

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Section: F Final Equationssupporting

confidence: 63%

Section: The Shock-wave Measurements Experiments and The Dif-ferent S...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radiation drive temperature measurements in aluminium via radiation-driven shock waves: Modeling using self-similar solutions

Heizler,

Shussman,

Fraenkel

2021

Preprint

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Radiation drive temperature measurements in aluminum via radiation-driven shock waves: Modeling using self-similar solutions

Heizler¹,

Shussman

Fraenkel

2021

Physics of Plasmas

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We study the phenomena of radiative-driven shock waves using a semi-analytic model based on self-similar solutions of the radiative hydrodynamic problem. The relation between the Hohlraum drive temperature TRad and the resulting ablative shock DS is a well-known method for the estimation of the drive temperature. However, the various studies yield different scaling relations between TRad and DS based on different simulations. In T. Shussman and S. I. Heizler, Phys. Plasmas 22, 082109 (2015), we have derived full analytic solutions for the subsonic heat wave, which include both the ablation and the shock wave regions. Using this self-similar approach, we derive here the TRad(DS) relation for aluminum, using the detailed Hugoniot relations and including transport effects. By our semi-analytic model, we find a spread of ≈40 eV in the TRad(DS) curve as a function of the temperature profile's duration and its temporal profile. Our model agrees with the various experiments and the simulations data, explaining the difference between the various scaling relations that appear in the literature.

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Study of shockwave method for diagnosing the radiation fields of laser-driven gold hohlraums

Cited by 2 publications

References 6 publications

Radiation drive temperature measurements in aluminium via radiation-driven shock waves: Modeling using self-similar solutions

Radiation drive temperature measurements in aluminium via radiation-driven shock waves: Modeling using self-similar solutions

Radiation drive temperature measurements in aluminum via radiation-driven shock waves: Modeling using self-similar solutions

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