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Inverse Liner Z-Pinch: An Experimental Pulsed Power Platform for Studying Radiative Shocks
Ist Teil von
IEEE transactions on plasma science, 2018-11, Vol.46 (11), p.3734-3740
Ort / Verlag
New York: IEEE
Erscheinungsjahr
2018
Quelle
IEEE Electronic Library (IEL)
Beschreibungen/Notizen
We present a new experimental platform for studying radiative shocks using an "inverse liner z-pinch" configuration. This platform was tested on the MAGPIE pulsed power facility (~1 MA with a rise time of ~240 ns) at Imperial College London, U.K. Current is discharged through a thin-walled metal tube (a liner) embedded in a low-density gas-fill and returned through a central post. The resulting magnetic pressure inside the liner launched a cylindrically symmetric, expanding radiative shock into the gas-fill at ~10 km/s. This experimental platform provides good diagnostic access, allowing multiframe optical self-emission imaging, laser interferometry, and optical emission spectrography to be fielded. Results from experiments with an Argon gas-fill initially at 0.04 mg/cm 3 are presented, demonstrating the successful production of cylindrically symmetric, expanding shocks that exhibit radiative effects such as the formation of a radiative precursor.