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Laser energy asymmetry-driven deflection of Au plasma jets in half-cylinder target and its interaction with CH corona plasma

Zhu Lei, Yuxue Zhang, Tianming Song, Qing Wang, Wenqiang Yuan, Kuan Ren, Chengwu Huang, Yang Zhao, Bo Qing, Zhiyu Zhang2025年6月Nuclear FusionIF 3出版社

We investigate the formation of deflected gold jets and their interaction with plastic corona plasma, relevant to energy imbalances in the hohlraum for indirect drive inertial confinement fusion (ICF). Experiments and hydrodynamic simulations were performed using two laser pulses (1 ns pulse, 0.6 and 0.8 TW, respectively) with a energy and power difference on the interior of an Au cylinder shell target. X-ray and optical imaging revealed distinct deflection structures and about 15-degree deflection of the Au plasma jets. When a deflected Au jet interacted with a CH planar target representing the ICF capsule ablator, significant compression of the CH corona was observed. Radiation magnetohydrodynamic simulations closely matched the experimental results. A temperature difference of 800 eV from the laser energy imbalance caused differential expansion of the Au bubbles, driving the jet deflection. During the Au-CH interaction, self-generated magnetic fields in the Au jets were significantly enhanced at the impact point, potentially generating super-hot electrons. These findings help in understanding the impact of deflected Au jets on the CH ablator corona plasma within ICF hohlraums. Such interactions may become a key issue to address in future applications of near-vacuum hohlraums.

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Plasma jet

AIによる論文要約

レーザーエネルギー非対称性が引き起こすAuプラズマジェットの偏向とCHコロナプラズマとの相互作用
JAこの論文は、慣性核融合の研究者や学生、ホールラムデザインに興味のある人に役立つでしょう。#InertiallConfinementFusion #HohlraumDesign #LaserPlasmaInteractions
LLM向け: {'Title': 'レーザーエネルギー非対称性が引き起こすAuプラズマジェットの偏向とCHコロナプラズマとの相互作用', 'Author(s)': '不明',…

この研究では、間接駆動慣性核融合におけるホールラムのエネルギー不均衡の影響を調べています。実験とシミュレーションにより、レーザーエネルギーの差異によってAuプラズマジェットが偏向し、CHアブレータプラズマを圧縮することを示しています。自己生成された磁場によりスーパーホットな電子が発生する可能性があり、これがICFホールラムにおける重要な課題となる可能性があります。

Laser energy asymmetry-driven deflection of Au plasma jets in half-cylinder target and its interaction with CH corona plasma
ENThis paper should be read by fusion researchers and scientists interested in understanding the impact of laser energy imbalance on the behavior of plasma jets and their interaction with the ablator material in ICF experiments.#ICF #PlasmaJets #LaserEnergyImbalance #PlasmaInteraction #HohlraumDynamics
LLM向け: {'Title': 'Laser energy asymmetry-driven deflection of Au plasma jets and their …

This paper investigates the formation of deflected gold plasma jets and their interaction with plastic corona plasma, which is relevant to energy imbalances in the hohlraum for indirect drive inertial confinement fusion (ICF). The experiments and simulations show that a temperature difference caused by laser energy imbalance leads to the deflection of the Au plasma jets, which can significantly compress the CH corona plasma and potentially generate super-hot electrons.

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