Assessing Mix Layer Amplitude in 3D Decelerating Interface Experiments

Authors: Kuranz, C.; Drake, R.; Donajowski, T.; Dannenberg, K.; Grosskopf, M.; Kremer, D.; Krauland, C.; Marion, D.; Robey, H.; Remington, B.; Hansen, J.; Blue, B.; Knauer, J.; Plewa, T.; Hearn, N.

Source: Astrophysics and Space Science, Volume 307, Numbers 1-3, January 2007 , pp. 115-119(5)

Publisher: Springer

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We present data from recent high-energy-density laboratory experiments designed to explore the Rayleigh–Taylor instability under conditions relevant to supernovae. The Omega laser is used to create a blast wave structure that is similar to that of the explosion phase of a core-collapse supernova. An unstable interface is shocked and then decelerated by the planar blast wave, producing Rayleigh–Taylor growth. Recent experiments were performed using dual, side-on, x-ray radiography to observe a 3D “egg crate” mode and an imposed, longer-wavelength, sinusoidal mode as a seed perturbation. This paper explores the method of data analysis and accurately estimating the position of important features in the data.

Keywords: Laboratory astrophysics; Rayleigh-Taylor instability; Supernova

Document Type: Research Article


Publication date: January 1, 2007

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