Space-Resolved Diagnosis for Electron Temperature of Laser-Produced Aluminum Plasma

作者：Zhao Yang^*; Deng Bo; Xiong Gang; Hu Zhi Min; Wei Min Xi; Zhu Tuo; Shang Wan Li; Li Jun; Yang Guo Hong; Zhang Ji Yan; Yang Jia Min

来源：Chinese Physics Letters, 2011, 28(6): 065201.

DOI：10.1088/0256-307X/28/6/065201

The K-shell emission spectra of laser-produced aluminum plasma are measured by a space-resolved spectrometer consisting of a flat crystal spectrometer with a 20 mu m wide space-resolved slit. By using the approximation of the steady collisional-radiative equilibrium model, the interstage line intensity ratios of Ly-alpha resonance line to He-alpha resonance line are given as a function of electron temperature. The spectra profiles are decomposed to resonance line and the overlapped high-order satellites manifold. Thus reliable electron temperature is deduced from the interstage line intensity ratios of the decomposed resonance lines. The results of spaced-resolved temperature are compared with the hydrodynamic simulations. The diagnostics of electron temperature for laser-produced plasma is developed.

• 出版日期2011-6
• 单位中国工程物理研究院