搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

辐射输运实验中的Al等离子体发射光谱研究

蒲昱东 杨家敏 靳奉涛 张璐 丁永坤

引用本文:
Citation:

辐射输运实验中的Al等离子体发射光谱研究

蒲昱东, 杨家敏, 靳奉涛, 张璐, 丁永坤

Characteristics of emission spectroscopyof radiatively heated Al plasma

Pu Yu-Dong, Yang Jia-Min, Jin Feng-Tao, Zhang Lu, Ding Yong-Kun
PDF
导出引用
  • SGII装置上用八路激光注入金腔产生高温辐射源,然后利用该辐射源来加热输运腔中的掺Al泡沫样品.从测量得到的Al类氦离子发射光谱可以观察到a—d,qr伴线的强度明显高于jkl伴线的强度,由此可以确定出光子激发和电离过程对输运腔中等离子体的形成不可忽略.除此之外,还观察到较强的互组合线发射,这表明存在一个低密度区域.最后考虑到实验测量得到的Al类氦离子发射光谱是时间、空间积分,利用两个状态等离子体的发射光谱合成再现了实验光谱.
    The X-ray spectrum of radiatively heated tracer Al in the doped foam was recorded by using a flat crystal spectrometer. The radiation thermal bath with a peak temperature of 150 eV is created inside the hohlraum irradiated by 8 laser beams, each delivering 250J. From the measured spectrum, we have observed that the intensities of jkl Li-like satellite were smaller than those of qr Li-like satellites, which is not a case usually encountered in electron collision dominated low density plasmas. The analyses of various generation and loss channels of doubly excited states indicate that in the radiatively heated plasma considered in the present work, the photo excitation and the photo ionization processes are fully responsible for the generation of doubly excited states instead of dielectronic recombination. Besides the satellite features, intercombination lines are also observed which imply the existence of a low density plasma region. Finally, we compare the calculated spectrum with the measured spectrum, and find that they are in fairly good agreement was achiered.
    • 基金项目: 等离子体物理国家级重点实验室基金(批准号:9140C6801020801)资助的课题.
    [1]

    Jiang S E, Sun K X, Zheng Z J 2004 Acta Phys. Sin. 53 3413 (in Chinese) [江少恩、孙可煦、 郑志坚 2004 物理学报 53 3413]

    [2]

    Jiang S E, Sun K X, Huang T X 2004 Acta Phys. Sin. 53 1425 (in Chinese) [江少恩、孙可煦、黄天晅 2004 物理学报 53 1425]

    [3]

    Zhang Jiyan, Yang Jiaming, Xu Yan 2008 Acta Phys. Sin. 57 985 (in Chinese) [张继彦、杨家敏、许 琰 2008 物理学报 57 985 ]

    [4]

    Yang J M, Zhang J Y, Ding Y N 2007 High Power Laser and Particle Beams 19 1483 (in Chinese) [杨家敏、张继彦、丁耀南 2007 强激光与粒子束 19 1483]

    [5]

    Gabriel A H 1972 Mon. Not. R. Astr. Soc. 160 99

    [6]

    Salzmann D 1978 J. Appl. Phys. 49 3229

    [7]

    Glenzer S H, Fournier K B, Decker C 2000 Phys. Rev. E 62 2728

    [8]

    Pu Y D, Jin F T, Zhang J Y 2010 Journal of Atomic and Molecular Physics 27 (in Press) [蒲昱东、靳奉涛、张继彦 2010 原子分子物理学报 27]

    [9]

    Vinogradov A V, Skobelev I Y, Yukov E A. 1975 Sov. J. Quant. Electron. 5 630

    [10]

    Ramis R, Schmaltz, Meyer-ter-Vehn 1988 J. Comp. Phys. Comm. 49 475

  • [1]

    Jiang S E, Sun K X, Zheng Z J 2004 Acta Phys. Sin. 53 3413 (in Chinese) [江少恩、孙可煦、 郑志坚 2004 物理学报 53 3413]

    [2]

    Jiang S E, Sun K X, Huang T X 2004 Acta Phys. Sin. 53 1425 (in Chinese) [江少恩、孙可煦、黄天晅 2004 物理学报 53 1425]

    [3]

    Zhang Jiyan, Yang Jiaming, Xu Yan 2008 Acta Phys. Sin. 57 985 (in Chinese) [张继彦、杨家敏、许 琰 2008 物理学报 57 985 ]

    [4]

    Yang J M, Zhang J Y, Ding Y N 2007 High Power Laser and Particle Beams 19 1483 (in Chinese) [杨家敏、张继彦、丁耀南 2007 强激光与粒子束 19 1483]

    [5]

    Gabriel A H 1972 Mon. Not. R. Astr. Soc. 160 99

    [6]

    Salzmann D 1978 J. Appl. Phys. 49 3229

    [7]

    Glenzer S H, Fournier K B, Decker C 2000 Phys. Rev. E 62 2728

    [8]

    Pu Y D, Jin F T, Zhang J Y 2010 Journal of Atomic and Molecular Physics 27 (in Press) [蒲昱东、靳奉涛、张继彦 2010 原子分子物理学报 27]

    [9]

    Vinogradov A V, Skobelev I Y, Yukov E A. 1975 Sov. J. Quant. Electron. 5 630

    [10]

    Ramis R, Schmaltz, Meyer-ter-Vehn 1988 J. Comp. Phys. Comm. 49 475

计量
  • 文章访问数:  7852
  • PDF下载量:  693
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-12-17
  • 修回日期:  2010-05-29
  • 刊出日期:  2011-02-05

/

返回文章
返回