Effect of filling rates on preparation of planar cryotargets

Wei, 林伟 Lin; Kai, 王凯 Wang; Jun, 黎军 Li; Yuanqiong, 刘元琼 Liu; Yongjian, 唐永建 Tang; Haile, 雷海乐 Lei

doi:10.3788/hplpb20132512.3243

Cited by 3 publications

(3 citation statements)

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“…They performed experiments with helium and air for a range of pressures and temperatures to verify the model, and this work provided reliable experimental data for the later numerical study. Lin et al [35] investigated the filling process of a planar cryotarget, and the results showed that a slower filling rate is helpful for the accurate measurement of the saturated vapor pressure of liquid hydrogen at the given temperature. Yu et al [36] studied the gas filling and leaking performance through unified flow theory, and proposed some methods to prevent ruptures of the sealing films.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Optimization of Sub-Atmospheric Purging through Microcapillaries in an ICF Cryogenic Target

Li,

Yin,

et al. 2024

Processes

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In inertial confinement fusion, the sub-atmospheric purging through microcapillaries is of great importance to the high gas purity inside the cryogenic target and the low failure rate of experiments. In this study, a non-continuous flow model is developed for this sub-atmospheric purging process and verified through National Ignition Facility experiments to study the evolution of parameters such as pressure and gas composition that are not possible to measure directly. The effects of microcapillary structures and sizes on the transient evacuation–filling behaviors are analyzed, and the periodic purging scheme is optimized. The results show that the extension of evacuation and filling time caused by the elongated microtube can be described as a linear function of microtube length or an exponential decay function of microtube diameter, and the change of the inner diameter has a more drastic effect. The conical-straight composite can effectively reduce the evacuation and filling time while meeting the thermal and mechanical requirements. The overall performance of the purging process exhibits a strong dependence on the cycle trough pressure. The total purging time firstly decreases and then increases with the increase in the trough pressure, and the optimal trough pressure falls at around 20% of the filling pressure where the evacuation and filling times are almost evenly balanced. These results can provide theoretical guidance for the selection of microtubes and the design of the filling–evacuating scheme in the experiments.

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Section: Introductionmentioning

confidence: 99%

Performance Analysis and Optimization of Sub-Atmospheric Purging through Microcapillaries in an ICF Cryogenic Target

Li,

Yin,

et al. 2024

Processes

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“…The fusion energy is one of many candidates of new resources of energy [1]. Many countries are all developing ICF, and have prepared many type of targets meeting ICF experiment [2][3][4][5][6][7][8][9]. The synthesized polystyrene (PS) hollow microshpere is a better target which has good concentricity and sphericity and better gas retaining ability both at home and abroad [3,4,[11][12].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Magnetic Polymer ICF Pellet by the Electroless Plating

Cui¹,

He³

2014

AMR

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The pretreating procedures on the inertial confinement fusion (ICF) pellet and the preparing procedures of th bath of electroless Ni-P plating were described in detail. The effects of the pH value of the bath on the coating quality, of the plating temperature on the yield of the coated microsperes and the plating rate, and of the plating time and the content of the complexing agent on the yield of the coated microsperes were investigated. The morphologies of the coating of the microsperes were evaluated by Olympus-BX51 optical microscopy (OM) and the coating thicknesses were measured by Scanning Electron Microscopy (SEM).

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Section: Introductionmentioning

confidence: 99%

Preparation of Magnetic Polymer ICF Pellet by the Electroless Plating

Cui¹,

He²

2013

AMM

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The pretreating procedures on the inertial confinement fusion (ICF) pellet and the preparing procedures of th bath of electroless Ni-P plating were described in detail. The effects of the pH value of the bath on the coating quality, of the plating temperature on the yield of the coated microsperes and the plating rate, and of the plating time and the content of the complexing agent on the yield of the coated microsperes were investigated. The morphologies of the coating of the microsperes were evaluated by Olympus-BX51 optical microscopy(OM) and the coating thicknesses were measured by Scanning Electron Microscopy (SEM).

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Effect of filling rates on preparation of planar cryotargets

Cited by 3 publications

References 0 publications

Performance Analysis and Optimization of Sub-Atmospheric Purging through Microcapillaries in an ICF Cryogenic Target

Performance Analysis and Optimization of Sub-Atmospheric Purging through Microcapillaries in an ICF Cryogenic Target

Preparation of Magnetic Polymer ICF Pellet by the Electroless Plating

Preparation of Magnetic Polymer ICF Pellet by the Electroless Plating

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