基于Abel逆变换的辐射驱动内爆壳层密度分布研究

董建军; 曹柱荣; 陈伯伦; 黄天暄; 缪文勇; 张继彦; 刘慎业; 江少恩; 丁永坤; 谷渝秋; 单连强

doi:10.7498/aps.61.115206

摘要

给出了一种利用Abel逆变换反演壳层压缩密度分布的方法. 使用微焦点X射线光源对直径1 mm、密度已知的空心CH球壳进行了透射照相, 通过Abel逆变换反演得到了空心CH球壳的壳层密度, 反演密度与实际密度符合, 表明通过Abel逆变换反演壳层密度的有效性. 对16分幅相机记录的辐射驱动内爆靶球图像进行Abel逆变换, 得到了不同时刻壳层压缩密度分布.定性分析了背光空间分布、针孔成像系统和壳层厚度变化对密度反演的影响.

关键词:

Abstract

A method of solving spatial distribution of shell density by inverse Abel transform is presented. CH sphere imaging on the micro-focus X-ray source is implanted to test the method of inverse Abel transform. The reversion of shell density is in agreement with real density, which verifies the correctness of the method. The 16-fram implosion target images are processed by inverse Abel transform, and the distributions of compressed shell density at different times are obtained. Qualitative analysis of back-lighter distribution, pinhole imaging and variation of shell thickness is proposed for inverse Abel transform.

Keywords:

作者及机构信息

1.
中国工程物理研究院激光聚变研究中心, 绵阳 621900

基金项目: 中国工程物理研究院科学技术发展基金(批准号:2010B0102015)和国家自然科学基金(批准号: 10905050)资助的课题.

Authors and contacts

1.
Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China

Funds: Project supported by the Foundation for Development of Science and Technology of China Academy of Engineering Physics (Grant No. 2010B0102015) and the National Natural Science Foundation of China (Grant No. 10905050).

参考文献

[1]	Lindl D, Amendt P, Richard L, Berger S, Glendinning G, Glenzer H, Haan W, Robert L, Kauffman, Landen L, Laurence J 2004 Phys. Plasmas 1 339
[2]	Yaakobi B, Smalyuk V A, Delettrez J A, Marshall F J, Meyerhofer D D, Seka W 2000 Phys. Plasmas 7 3727
[3]	Smalyuk V A, Delettrez J A, Dumanis S B 2003 Phys. Plasmas 10 830
[4]	Yaakobi B, Marshall F J, Bradley D K 1997 Phys. Plasmas 4 3021
[5]	Yaakobi B, Shvarts D, Marshall F J, Epstein F L 1995 Rev. Sci. Instrum. 66 728
[6]	Marshall F J, Delettrez J A, Epstein R 1994 Phys. Rev. E 49 4381
[7]	Marshall F J, McKenty P W, DelettrezJ A, Epstein R, Knauer J P, Smalyuk V A 2009 Phys. Rev. Lett. 102 185004
[8]	Hicks D G, Spears B K, Braun D G, Olson R E, Sorce C M, Celliers P M, Collins G W, Landen O L 2010 Rev. Sci. Instrum. 81 10E304
[9]	Jiang S E, Liu Z L, Tang D Y, Zheng Z J 2000 Opt. Precision Engineering 8 181 (in Chinese) [江少恩, 刘忠礼, 唐道源, 郑志坚 2000 光学精密工程 8 181]
[10]	Jiang S E, Ding Y K, Miao W Y, Liu S Y, Zheng Z J, Zhang B H, Zhang J Y, Huang T X, Li S W, Cheng J B, Jiang X H, Yi R Q, Yang G H, Yang J M, Hu X, Cao Z R, Huang Y X 2009 Sci. China G 39 1571 (in Chinese) [江少恩, 丁永坤, 缪文勇, 刘慎业, 郑志坚, 张保汉, 张继彦, 黄天暄, 李三伟, 陈家斌, 蒋小华, 易荣清, 杨国洪, 杨家敏, 胡昕, 曹柱荣, 黄翼翔 2009 中国科学G辑 39 1571]

施引文献

[1]	Lindl D, Amendt P, Richard L, Berger S, Glendinning G, Glenzer H, Haan W, Robert L, Kauffman, Landen L, Laurence J 2004 Phys. Plasmas 1 339
[2]	Yaakobi B, Smalyuk V A, Delettrez J A, Marshall F J, Meyerhofer D D, Seka W 2000 Phys. Plasmas 7 3727
[3]	Smalyuk V A, Delettrez J A, Dumanis S B 2003 Phys. Plasmas 10 830
[4]	Yaakobi B, Marshall F J, Bradley D K 1997 Phys. Plasmas 4 3021
[5]	Yaakobi B, Shvarts D, Marshall F J, Epstein F L 1995 Rev. Sci. Instrum. 66 728
[6]	Marshall F J, Delettrez J A, Epstein R 1994 Phys. Rev. E 49 4381
[7]	Marshall F J, McKenty P W, DelettrezJ A, Epstein R, Knauer J P, Smalyuk V A 2009 Phys. Rev. Lett. 102 185004
[8]	Hicks D G, Spears B K, Braun D G, Olson R E, Sorce C M, Celliers P M, Collins G W, Landen O L 2010 Rev. Sci. Instrum. 81 10E304
[9]	Jiang S E, Liu Z L, Tang D Y, Zheng Z J 2000 Opt. Precision Engineering 8 181 (in Chinese) [江少恩, 刘忠礼, 唐道源, 郑志坚 2000 光学精密工程 8 181]
[10]	Jiang S E, Ding Y K, Miao W Y, Liu S Y, Zheng Z J, Zhang B H, Zhang J Y, Huang T X, Li S W, Cheng J B, Jiang X H, Yi R Q, Yang G H, Yang J M, Hu X, Cao Z R, Huang Y X 2009 Sci. China G 39 1571 (in Chinese) [江少恩, 丁永坤, 缪文勇, 刘慎业, 郑志坚, 张保汉, 张继彦, 黄天暄, 李三伟, 陈家斌, 蒋小华, 易荣清, 杨国洪, 杨家敏, 胡昕, 曹柱荣, 黄翼翔 2009 中国科学G辑 39 1571]

姓名
邮箱
手机号码
标题
留言内容
验证码

搜索

留言板