The diagnostics of density distribution for inhomogeneous dense DT plasmas using fast protons
文献类型：期刊论文
| 作者 | Li X. -M. ; Shen BF(沈百飞) ; Zhang X. -M. ; Jin Z. -Y. ; Wang F. -C. |
| 刊名 | laser part. beams
 |
| 出版日期 | 2008 |
| 卷号 | 26期号:2页码:139 |
| 关键词 | density distribution DT plasma fast protons L-curve Tikhonov regularization method |
| ISSN号 | 0263-0346 |
| 中文摘要 | the density distribution of inhomogeneous dense deuterium-tritium plasmas in laser fusion is revealed by the energy loss of fast protons going through the plasma. in our simulation of a plasma density diagnostics, the fast protons used for the diagnostics may be generated in the laser-plasma interaction. dividing a two-dimensional area into grids and knowing the initial and final energies of the protons, we can obtain a large linear and ill-posed equation set. for the densities of all grids, which is solved with the tikhonov regularization method. we find that the accuracy of the set plan with four proton sources is better than those of the set plans with less than four proton sources. also we have done the density reconstruction especially. for four proton sources with and without assuming circularly symmetrical density distribution, and find that the accuracy is better for the reconstruction assuming circular symmetry. the error is about 9% when no noise is added to the final energy for the reconstruction of four proton sources assuming circular symmetry. the accuracies for different random noises to final proton energies with four proton sources are also calculated. |
| 语种 | 英语 |
| WOS记录号 | WOS:000257017800002 |
| 公开日期 | 2009-09-18 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/126]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li X. -M.,Shen BF,Zhang X. -M.,et al. The diagnostics of density distribution for inhomogeneous dense DT plasmas using fast protons[J]. laser part. beams,2008,26(2):139, 145. |
| APA | Li X. -M.,沈百飞,Zhang X. -M.,Jin Z. -Y.,&Wang F. -C..(2008).The diagnostics of density distribution for inhomogeneous dense DT plasmas using fast protons.laser part. beams,26(2),139. |
| MLA | Li X. -M.,et al."The diagnostics of density distribution for inhomogeneous dense DT plasmas using fast protons".laser part. beams 26.2(2008):139. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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