| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Space-Resolved Diagnosis for Electron Temperature of Laser-Produced Aluminum Plasma |
| 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
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Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900
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| Cite this article: |
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ZHAO Yang, DENG Bo, XIONG Gang et al 2011 Chin. Phys. Lett. 28 065201 |
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Abstract 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 μm wide space−resolved slit. By using the approximation of the steady collisional-radiative equilibrium model, the interstage line intensity ratios of Ly-α resonance line to He−α 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.
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| Keywords:
52.50.Jm
32.30.Rj
32.70.Jz
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Received: 03 March 2011
Published: 29 May 2011
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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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32.30.Rj
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(X-ray spectra)
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32.70.Jz
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(Line shapes, widths, and shifts)
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