| 利用分幅相机测量铋球表面发射X射线图像 |
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| 引用本文： | 袁铮,陈伯伦,曹柱荣,张海鹰,黄天暄,黎航,刘慎业,江少恩,杨家敏.利用分幅相机测量铋球表面发射X射线图像[J].强激光与粒子束,2012,24(1):105-109. |
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| 作者姓名： | 袁铮 陈伯伦 曹柱荣 张海鹰 黄天暄 黎航 刘慎业 江少恩 杨家敏 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900 |
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| 基金项目： | 中国工程物理研究科学技术发展基金 |
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| 摘 要： | 设计了一种塑料靶表面涂铋(Bi)的靶丸替代常规内爆靶，利用分幅相机获取辐射驱动内爆替代靶丸Bi等离子体再发射X射线的2维图像。实验时，从主激光中分出一束光信号，经光电转换后作为分幅相机的触发信号，以激光直接驱动金球靶建立相机的时标。根据分幅相机的时标可确定每幅X射线图像相对于主激光的时间延迟。分析Bi球靶的X射线分幅图像，得到夹持内爆靶丸的CH膜的烧蚀时间及Bi球靶半径的变化关系。通过X射线图像还可反推出诊断孔的大小和CH膜支撑靶丸的对称性。
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| 关 键 词： | X射线分幅相机 铋球靶 时标 CH膜 |
| 收稿时间： | 2011/3/30 |
Measurement of X-ray emitted by bismuth ball using framing camera |
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| Yuan Zheng
,
Chen Bolun
,
Cao Zhurong
,
Zhang Haiying
,
Huang Tianxuan
,
Li Hang
,
Liu Shenye
,
Jiang Shaoen
,
Yang Jiamin.Measurement of X-ray emitted by bismuth ball using framing camera[J].High Power Laser and Particle Beams,2012,24(1):105-109. |
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| Authors: | Yuan Zheng Chen Bolun Cao Zhurong Zhang Haiying Huang Tianxuan Li Hang Liu Shenye Jiang Shaoen Yang Jiamin |
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| Affiliation: | 1.Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China |
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| Abstract: | A kind of bismuth ball, i.e. a plastic ball coated with bismuth, has been designed to replace the conventional implosion target. The X-ray framing camera was utilized to obtain the 2D image of the reemission X-ray emitted by the bismuth ball driven by radiation. In the experiment, a branch of light was divided from the lasers, to yield the trigger signal of the camera by photoelectric conversion. The camera time scale was established by gold ball directly driven by the laser beams. According to the time scale, the time relationship of each frame of image relative to the laser beams is obtained. Analyzing the X-ray images of the bismuth ball, the ablation time of the CH film which was holding the bismuth ball and the variation of the bismuth sphere radius can be defined. The diagnostic hole’s size, and the symmetry of the supporting CH film can also be inferred by the X-ray images． |
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| Keywords: | X-ray framing camera bismuth ball time scale CH film |
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