Experimental method for plasma movement in a hole
-
摘要: 在间接驱动惯性约束聚变的黑腔中,辐射烧蚀的高Z等离子体的流体力学运动过程对激光注入黑腔的效率、辐射场均匀性和通过诊断口的黑腔辐射温度诊断都有显著影响。为研究诊断口在黑腔辐射场中的等离子体缩口过程,用激光产生X光辐射加热低Z泡沫填充的金黑腔诊断口,以激光辐照钛平面靶产生的2~5 keV高能段窄能区X光作为背光源,用X光分幅相机获得了源靶和小孔靶两种靶型的小孔等离子体运动过程图像,研究了X光烧蚀的小孔等离子体的流体力学运动过程,探索了定量测量小孔等离子体面密度的空间分布与时间演化过程的实验诊断方法,初步给出小孔等离子体的面密度。Abstract: In the hohlraum of laser indirect-drive inertial confinement fusion (ICF), hydrodynamic moving processes of radiation-ablated high-Z plasma have great influence on laser injection efficiency, radiation uniformity and measurement of the hohlraum radiation temperature at the diagnosis hole (DH). To study the plasma filling in the DH, using laser-produced X-ray to heat low-Z foam-tamped high-Z gold DH, and using laser-irradiated Ti disk to generate 2-5 keV high and narrow energy X-ray as the intense backlighter source, the plasma movement in a hole was measured by an X-ray framing camera(XFC). A quantificational measuring method for the areal density distribution and evolution of plasma in a hole was studied.
-
Key words:
- small hole /
- plasma movement /
- x-ray farming camera /
- areal density
期刊类型引用(3)
1. 郑博文,杨超,李永亮,李鑫. 2μm大能量掺铥脉冲光纤激光器研究进展. 激光与红外. 2024(01): 10-16 . 百度学术
2. 陈鹏飞,伍波,王宏元,沈琪皓,何幸锴,张恩涛. 增益调制高重频脉冲光纤激光器实验研究. 强激光与粒子束. 2015(04): 109-113 . 本站查看
3. 冉欢欢,潘旭东,李腾龙,王煜,李旭. 基于菲涅尔反射的光纤激光器功率测量方法. 强激光与粒子束. 2015(08): 7-11 . 本站查看
其他类型引用(2)
-

计量
- 文章访问数: 1903
- HTML全文浏览量: 214
- PDF下载量: 383
- 被引次数: 5