| 平面Au靶再发射的数值模拟 |
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| 引用本文： | 赖东显,冯庭桂,许琰,蓝可.平面Au靶再发射的数值模拟[J].强激光与粒子束,2001,13(1):64-67. |
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| 作者姓名： | 赖东显 冯庭桂 许琰 蓝可 |
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| 作者单位： | 北京应用物理与计算数学研究所，北京8009信箱，100088 |
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| 基金项目： | 国家863惯性约束聚变资助课题，国家自然科学基金资助课题!（19735002） |
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| 摘 要： | 利用一维多群辐射输运程序(RDMG)，数值研究了平面Au靶入射流强度对再发射谱、再发射流、反照率及边界等效温度的影响。当入射流强度在(0.12-1.2)x1014 W/cm2 范围内，发射谱接近平衡谱，但在峰值附近谱形发生畸变。随着入射流强度降低，发射谱偏离平衡谱越来越大。分析表明，这与烧蚀深度和冕区光学厚度变小有关。本文还给出了在不同入射流强度情况下反照率及边界等效温度随时间变化规律，并给出了吸收流和再发射流脉冲的分析。
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| 关 键 词： | 再发射流 再发射谱 反照率 边界等效温度 |
| 文章编号： | 1001－4322（2001）01－0064－04 |
| 收稿时间： | 2000/10/9 |
| 修稿时间： | 2000年10月9日 |
Numerical simulations for re-emission of An planar targets |
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| LAI Dong-xian,FENG Ting-gui,XU Yan,LAN Ke.Numerical simulations for re-emission of An planar targets[J].High Power Laser and Particle Beams,2001,13(1):64-67. |
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| Authors: | LAI Dong-xian FENG Ting-gui XU Yan LAN Ke |
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| Institution: | Institute of Applied Physics and Computational Mathematics,B.O.Box 8009,Beijing 100088, China |
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| Abstract: | One dimension multi-group radiation transfer program was used to simulate the processes of re-emission for An disk. Some results about the re-emission spectrum, the re-emission flux, the albedo and the equivalent temperature at the boundary are given, and the variations of re-emission spectrum with the incident flux are analyzed. It is found that the re-emission spectrum is closely related with the depth of ablation and the optical thickness of corona plasma. |
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| Keywords: | re-emission flux re-emission spectrum albedo equivalent temperature at the boundary |
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