Planarity and stability of shock driven directly by the ninth laser beam from “Shenguang-II" laser facility
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Using the ninth laser beam (converted to 2ω) of “Shenguang-II” laser facility and the beam smoothing technology of lens-array [Appl. Opt. 25, 377 (1986); Phys. Plasmas. 9, 3201 (1995)], a shock wave with 700 μm (the root-mean-square of shock breakout time (RMS) RMS ≈ 6.32 ps) flat top was created. An Al-Al four-step target was designed to do research on shock wave stability in an Al target. And the shock stability experiment with the Al-Al four-step target indicated that the shock wave steadily propagated in the Al target of thickness of about 20–45 μm under the power density of ~ 1.0×1014 W/cm2.
PACS.51.30.+i Thermodynamic properties, equations of state 91.60.Gf High-pressure behavior 52.50.Lp Plasma production and heating by shock waves and compression
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