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Rosseland Mean Opacity of a High-Z Mixture Plasma |
| YANG Jia-Min1;XU Yan2;DING Yao-Nan1;DING Yong-Kun1;JIANG Shao-En1;ZHENG Zhi-Jian1;MIAO Wen-Yong1 |
| 1National Key Laboratory of Laser Fusion, Research Center of Laser Fusion, PO Box 919-986, Mianyang 621900
2Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088 |
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| Cite this article: |
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YANG Jia-Min, XU Yan, DING Yao-Nan et al 2003 Chin. Phys. Lett. 20 256-258 |
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Abstract An eight-beam 0.351-μm laser with pulse duration of about 1.0ns and energy of 260 J per beam was injected into a cylindrical cavity to generate intense x-ray radiation on the Shengguang II high power laser facility. A mixture foil of gold and gadolinium and a gold foil were attached on portion of a diagnostic hole in the mid-plane of the cavity and ablated by the intense x-ray radiation. The propagating time of the radiation heat wave in the mixture and the pure gold foil were measured with soft-x-ray spectrometer and by adopting space- and time-resolved measurement technology, respectively. The results show that the mixture of gold and gadolinium has higher Rosseland mean opacity than the gold sample in our experiment.
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| Keywords:
52.50.Jm
44.40.+a
47.70.Mc
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Published: 01 February 2003
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| PACS: |
52.50.Jm
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(Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))
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44.40.+a
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(Thermal radiation)
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47.70.Mc
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(Radiation gas dynamics)
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