Design and Fabrication of a CH/RF/CH Tri-Layer Perturbation Target for Hydrodynamic Instability Experiments in ICF

Tang, Jun; Xie, Zhiyong; Du, Ai; Ye, Junjian; Zhang, Zhihua; Shen, Jun; Zhou, Bin

doi:10.1007/s10894-015-0037-y

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Next, our goal is to combine solidification time with porogens to control the porous structure. Furthermore, we have considered that this material would be used as potential porous foam targets [16,35] on account of its hydrogen barrier properties with low H 2 permeability coefficient. In addition, the methods and products we described herein have potential applications in other various areas,…”

Section: Discussionmentioning

confidence: 99%

Preparation of polyacrylonitrile- based porous hollow carbon microspheres

Han

Dong

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Hollow carbon microspheres were successfully fabricated in a convenient fashion by employing polyacrylonitrile (PAN) emulsions as precursors. The obtained hollow carbon microspheres were shown high monodispersity, tunable pore structures-gradient pore diameters and uniform orientation of pores. Through varying the flowing rates of three phases and solidification time, the PAN microspheres with different sizes and densities could be simply synthesized. Besides the relationship between the solidification time and the density of microspheres as well as their gas barrier properties were studied in this paper. These structured microspheres have great potential applications in various areas, including foam targets, carbon molecular sieve, cargo storage, medical instruments and so on.

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Section: Discussionmentioning

confidence: 99%

Preparation of polyacrylonitrile- based porous hollow carbon microspheres

Han

Dong

et al. 2017

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…近年来, 煤、石油及天然气等化石能源消耗巨大, 能源及环境等问题日渐彰显 [1−4] . 惯性约束核聚变(inertial confinement fusion, ICF)作为一种高效、清洁的能源形式愈发受到世界许多国家的重视 [5,6] . ICF是指依靠烧蚀层残余质量的惯性对高温高密度的热核燃料进行约束, 从而实现可控热核聚变 [7−16] .…”

Section: 引言unclassified

“…燃料冰层粗糙度主要受靶丸周围的温度场所决定, 因此低温靶温度场控制的重要性尤为突出 [19] . 低温靶热核燃料主要有两种选择: D 2 或DT [5,6] . 目前定向红外辅助均化相关的国外研究主要来自于美国劳伦斯利弗莫尔国家实验室.…”

Section: 引言unclassified

Influence of directional infrared irradiations on the temperature field in ICF cryotargets

西安交通大学能源与动力工程学院¹,

西安交通大学²

2021

Acta Phys. Sin.

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For an inertial-confinement-fusion cryogenic target, the fusion ice layer inside the capsule should have a uniformity more than 99% and an inner surface roughness less than 1 μm (root mean square) to avoid Rayleigh-Taylor instabilities. And this highly smooth ice layer required for ignition is generated at the presence of volumetric heat and affected by the thermal environment around the capsule. For the D2 fuel targets, the volumetrically heating can be supplied by exposing the ice layer to IR radiation. A major challenge of IR-layering is a spherically uniform IR illumination of the capsule, particularly for capsules held in cylindrical hohlraums in indirect-drive targets. In the present study, a numerical study is conducted on the thermal environment of D2 fuel capsule under directional infrared radiation. A 3D simulation model coupling the photonic and thermal fields has been established based on the Monte Carlo ray tracing method. The influence of infrared optical fibers’ layouts and source power intensity on temperature characteristics outside the capsule have been studied. The results indicate that at constant total power of optical fibers, the more optical fibers set up, the lower the average temperature of the outer surface decreases, and the more uniform the capsule outer surface temperature turns to be. The temperature uniformity of capsule outer surface deteriorates with the two or less optical fibers, but improves with the number greater than 2 in which case ΔTmax and ΔTw can decrease by 61.94% and 76.33% at most. A proper offset of optical fiber spots towards the hohlraum poles can improve the temperature uniformity of capsule outer surface, while the other two optical fiber spot offset schemes deteriorate the temperature uniformity. The results are of guiding significance for determining the optical fibers layout in experiment and further design option for cryogenic targets.

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Free-standing coating patterns fabricated by ultraviolet contact lithography using photosensitive sol-gel coatings

Xiang

et al. 2017

Optical Materials

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Design and Fabrication of a CH/RF/CH Tri-Layer Perturbation Target for Hydrodynamic Instability Experiments in ICF

Cited by 5 publications

References 23 publications

Preparation of polyacrylonitrile- based porous hollow carbon microspheres

Preparation of polyacrylonitrile- based porous hollow carbon microspheres

Influence of directional infrared irradiations on the temperature field in ICF cryotargets

Free-standing coating patterns fabricated by ultraviolet contact lithography using photosensitive sol-gel coatings

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