Recent progress of hohlraum physics experiments in indirect-driven ICF in China

Li, Sanwei; Yang, Dong; Li, Xin; Li, Zhichao; Guo, Liang; Xie, Xu; Kuang, Longyu; Zhang, Lu; Huo, Wenyi; Wu, Congcong; Chen, Yao-hua; Song, Peng; Zhang, HuaSen; Cao, Zhurong; Hu, Xiangming; Hou, Lifei; Yi, Rongqing; Jiang, Xiaohua; Li, Qi; Song, Tianming; Peng, Xiaoshi; Xu, Tao; Li, Yulong; Deng, Bo; Deng, Keli; Wang, Qiangqiang; Yang, Pin; Li, Hang; Yuan, Zheng; Wei, Huiyue; Liu, Xiangming; Zha, Weiyi; Liu, Yonggang; Wang, Zhebin; Zhang, Huan; Zhan, Xun; Chen, Li; Yu, Mei; Chen, Tao; Li, Jin; Yang, Zhiwen; Du, Huabing; Che, Xingsen; Yang, Yuexiang; Yang, Zhenghua; Jing, Longfei; He, Xiaoan; Li, Chaoguang; Wang, Peng; Yu, Rong; Su, Chunxiao; Chen, Ming; Cui, Yanli; Wang, Feng; Liu, Shenye; Yang, Jiamin; Jiang, Shaoen; Zhang, Baohan; Lan, Ke; Gu, P. J.; Zou, Shiyang; Zheng, Wudi; Liu, Jie; Ding, Yongkun

doi:10.1360/sspma2018-00035

Cited by 2 publications

(4 citation statements)

References 17 publications

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“…This code has been used to simulate a recent LPI experiment on SG-III laser facility. In this experiment [36], the hohlraum had a 25 µm thick gold wall, 4 mm length and 2.2 mm diameter. The hohlraum is filled with 0.4 atm C 5 H 12 .…”

Section: Discussion and Summarymentioning

confidence: 99%

Anomalous mix induced by a collisionless shock wave in an inertial confinement fusion hohlraum

Yan¹,

Cai²,

Zhang³

et al. 2019

Nucl. Fusion

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The anomalous mix at the high-Z and low-Z plasma interfaces in an inertial confinement fusion hohlraum is a current topic of interest. The mechanism for such an anomalous mix in the interpenetration layer at the high-Z and low-Z plasma interface and its effects on the laser plasma instabilities have been investigated by particle-in-cell simulations. It is found that a diffusion-driven collisionless shock wave can be generated from an initially sharp high-Z and low-Z plasma interface with total pressure balance and constant temperature in the laser propagation channel. This purely electrostatic shock wave propagates into the high-Z plasma and leads to mix of different species of ions which is significantly faster than a classical mix in the presence of the large electric field. The mix layer width, measured as a separation distance affected by the shock, grows as δd ∝ t α , where α ∼ 1. The effect of the anomalous mix on the linear growth rate of laser plasma instabilities is evaluated.

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Section: Discussion and Summarymentioning

confidence: 99%

Anomalous mix induced by a collisionless shock wave in an inertial confinement fusion hohlraum

Yan¹,

Cai²,

Zhang³

et al. 2019

Nucl. Fusion

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“…According to the conditions in the Au bubble experiment conducted on the hundreds of kJ laser facility [43][44][45], we get g b,g ≈90.…”

Section: Scaling Law Of Au Bubble Velocitymentioning

confidence: 99%

“…The experiments were conducted on the hundreds of kJ laser facility in China [43][44][45][47][48][49][50]. As shown in the figure 1, all the 32 laser beams of the outer cone with a total energy of 80.9 kJ and 3 ns flat-topped pulse, entered a hollow gold hohlraum (2.8 mm diameter and 2.08 mm length), which was filled with C 5 H 12 of 1.28 mg cc −1 .…”

Section: Model Validation With Experimentsmentioning

confidence: 99%

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An improved view-factor method including plasma filling for angular distribution of radiation temperature from a laser-driven hohlraum

Jing

Jiang

Kuang

et al. 2020

Plasma Sci. Technol.

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Angular distribution of radiation temperature from a laser-driven hohlraum is vital for investigations on the radiation field inside the hohlraum, code validation, and predication of drive on the capsule in indirect-drive inertial confinement fusion. A modified version of the view-factor method including plasma filling is proposed, which improves the accuracy of the description of angular distribution of radiation temperature. Firstly, the radial velocity of the gold bubble motion is scaled from a simple data-based model in a gas-filled hohlraum experiment performed on a hundreds of kJ laser facility in China. Then, an equivalent radiative volume model is advanced to approximately characterize the contribution of the blow-off bubble in the new view-factor method incorporate into IRAD3D. The simulation shows reasonable agreement with experimental measurements in a gas-filled hollow hohlraum. Furthermore, the influence of the electron density and temperature distribution, and bubble velocity, is analyzed. The value of the method is that it can be used as an approximate 'first-look' at hohlraum energy balance prior to a more detailed radiation hydrodynamic modeling.

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Recent progress of hohlraum physics experiments in indirect-driven ICF in China

Cited by 2 publications

References 17 publications

Anomalous mix induced by a collisionless shock wave in an inertial confinement fusion hohlraum

Anomalous mix induced by a collisionless shock wave in an inertial confinement fusion hohlraum

An improved view-factor method including plasma filling for angular distribution of radiation temperature from a laser-driven hohlraum

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