| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Analysis of Ar line spectra from indirectly-driven implosion experiments on SGII facility |
| Pu Yu-Dong(蒲昱东)†,Zhang Ji-Yan(张继彦),Yang Jia-Min(杨家敏), Huang Tian-Xuan(黄天晅),and Ding Yong-Kun(丁永坤) |
| Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China |
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Abstract This paper reports on the indirectly-driven implosion experiments on SGII laser facility in which Ar emission spectrum from Ar-doped D-filled plastic capsule is recorded with the crystal spectrometer. Spectral features of Ar Heβ line and its associated satellites are analysed to extract the electron temperature and density of the implosion core. Non local thermal equilibrium (NLTE) collisional-radiative atomic kinetics and Strark broadening line shape are included in the present calculation. By comparing the calculated spectrum with the measured one, the core electron temperature and density are inferred to be 700 eV and 2.5×1023 cm-3 respectively. With these inferred values of electron temperature and density, neutron yield can be estimated to agree with the measured value in magnitude despite of the very simple model used for the estimation.
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Received: 01 June 2010
Revised: 21 July 2010
Accepted manuscript online:
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PACS:
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52.27.-z
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52.70.-m
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(Plasma diagnostic techniques and instrumentation)
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| Fund: Project supported by the Science and Technology Foundation of State Key Laboratory of Plasma Physics (Grant No. 9140C6805100C68). |
Cite this article:
Pu Yu-Dong(蒲昱东),Zhang Ji-Yan(张继彦),Yang Jia-Min(杨家敏), Huang Tian-Xuan(黄天晅),and Ding Yong-Kun(丁永坤) Analysis of Ar line spectra from indirectly-driven implosion experiments on SGII facility 2011 Chin. Phys. B 20 015202
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