| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Shock-Timing Experiment Using a Two-Step Radiation Pulse with a Polystyrene Target |
| WANG Feng**, PENG Xiao-Shi, JIAO Chun-Ye, LIU Shen-Ye, JIANG Xiao-Hua, DING Yong-Kun
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Research Center of Laser Fusion, China Academic of Engineering and Physics, P.O.Box 919-986, Mianyang 621900
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| Cite this article: |
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WANG Feng, PENG Xiao-Shi, JIAO Chun-Ye et al 2011 Chin. Phys. Lett. 28 085202 |
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Abstract A shock-timing experiment plays an important role in inertial confinement fusion studies, and the timing of multiple shock waves is crucial to the performance of inertial confinement fusion ignition targets. We present an experimental observation of a shock wave driven by a two-step radiation pulse in a polystyrene target. The experiment is carried out at Shen Guang III Yuan Xing (SGIIIYX) laser facility in China, and the generation and coalescence of the two shock waves, originating from each of the two radiation steps, is clearly seen with two velocity interferometers. This two-shock-wave coalescence is also simulated by the radioactive hydrodynamic code of a multi-1D program. The experimental measurements are compared with the simulations and quite good agreements are found, with relatively small discrepancies in shock timing.
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| Keywords:
52.35.Tc
52.50.Lp
62.50.+p
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Received: 25 October 2010
Published: 28 July 2011
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| PACS: |
52.35.Tc
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(Shock waves and discontinuities)
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52.50.Lp
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(Plasma production and heating by shock waves and compression)
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62.50.+p
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