4 MA以下电流驱动垂直动态黑腔的自适应性
Self-adaptivity of columned dynamic hohlraums for Z-pinch on 4 MA drivers
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摘要: 在4 MA以下电流驱动Z箍缩黑腔辐射特性和耦合效率研究牵引下，研制出了柱型动态黑腔。利用CHO低密度泡沫的自持能力,结合辅助夹具解决了泡沫柱的装配及定位问题。基于负载丝受小应变作用，丝阵和泡沫柱通过μm量级的自由滑动和转动,具备自动适应靶室环境变化能力。实验结果表明:研制出的动态黑腔在Angara-5-1装置环境中具有自动适应能力，各项参数满足物理实验的需求，获得的最高动力学黑腔X光辐射温度为62.7 eV，实验结果重复性优于91.5%。Abstract: It is important to characterize the dynamic hohlraum’s radiation and coupling efficiency in Z-pinch physical experiments. The difficulty in the columned dynamic hohlraums presents unique challenges and opportunities for target fabrication, especially their self-adaptivity. Columned dynamic hohlraums were developed. The low-density CHO foams were assembled and fixed by assistant clamp and their self-sustaining ability. In the condition of small strain, wire-arrays and foams can automatically adapt to the environment change of target chamber, through free rotation and slide in micron-level. The results show that, the dynamic hohlraums meet the requirement of the Z-pinch physics experiment, and is self-adaptive on the Angara-5-1 facility. The maximal X-ray temperature is 62.7 eV, and the res
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Key words:
- z-pinch /
- dynamic hohlraums /
- self-adaptivity /
- target fabrication /
- icf targets
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