Mingsheng Wei

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The interaction of a very intense, very short laser pulse is modified by the presence of a preformed plasma prior to the main short pulse. The preformed plasma is created by a small prepulse interacting with the target prior to the main pulse. The prepulse has been monitored using a water-cell-protected fast photodiode allowing on every shot a high dynamic(More)
This paper is concerned with trajectory control system of cable-based parallel mechanisms (CPM) based on dynamics. Firstly, the dynamic formulation of the CPM with non-negligible cable mass was established by means of Newton-Euler formulation. Secondly, considering the inherent characteristics of nonlinearity, slow time-variant, and multivariable coupled(More)
We have used spherically bent quartz crystal to image a laser-generated shock in a foam medium. The foam targets had a density of 0.16 g/cm(3) and thickness of 150 microm, an aluminum/copper pusher drove the shock. The experiment was performed at the Titan facility at Lawrence Livermore National Laboratory using a 2 ns, 250 J laser pulse to compress the(More)
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