Spectroscopic investigation of Z-pinch with a spatial and temporal resolution
文献类型：期刊论文
| 作者 | Yanagidaira, T; Yamamoto, T; Shan, B; Hirano, K |
| 刊名 | journal of the physical society of japan
 |
| 出版日期 | 1999-03-01 |
| 卷号 | 68期号:3页码:852-856 |
| 关键词 | soft X-ray plasma focus gas puff soft X-ray spectroscopy hot spot imaging spectroscopy |
| 英文摘要 | soft x-rays generated by a plasma focus device with an ar gas puff are studied using a composite system which consists of an imaging bragg spectrometer and a soft x-ray high speed imaging system. two modes of soft x-ray emitting sources in z-pinch plasma, filamentary and scattered spots, are generated in this experiment depending on the delay time from the gas puff to the main discharge. spectroscopic observation revealed that even the case of the filamentary mode is not really filamentary but is actually x-ray emitting spots (hot spots) densely arranged in a column along the electrode axis. by using the soft x-ray high speed imaging system, the streak mode display is restructured from the data obtained in a single shot, temporally resolved observations in streak mode showed that a spot appeared at a point near the electrode face first, then different hot spots appeared successively along the axis and in a direction away from the electrode face. it is clarified that the hot spot is a small region from which intense h-like and he-like spectral lines are emitted. the size and the distance between spots are from 0.1 to 0.5 mm in radius and similar to 0.5 mm in length, respectively. the lifetime of the spots is 5 similar to 10 ns. the average electron temperature and density calculated from the intensity ratio of those spectral lines are similar to 1.8 kev and 1.7 x 10(22) /cm(3), respectively. they did not show a notable change along the axis. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | physics, multidisciplinary |
| 研究领域[WOS] | physics |
| 关键词[WOS] | plasma-focus ; ray ; spectrometer ; diagnostics ; spectra |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000079612200029 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/25403]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 作者单位 | 1.Gunma Univ, Dept Elect Engn, Kiryu, Gumma 3768515, Japan 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt Technol, Xian 710000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yanagidaira, T,Yamamoto, T,Shan, B,et al. Spectroscopic investigation of Z-pinch with a spatial and temporal resolution[J]. journal of the physical society of japan,1999,68(3):852-856. |
| APA | Yanagidaira, T,Yamamoto, T,Shan, B,&Hirano, K.(1999).Spectroscopic investigation of Z-pinch with a spatial and temporal resolution.journal of the physical society of japan,68(3),852-856. |
| MLA | Yanagidaira, T,et al."Spectroscopic investigation of Z-pinch with a spatial and temporal resolution".journal of the physical society of japan 68.3(1999):852-856. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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