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Image processing of radiographs in 3D Rayleigh-Taylor decelerating interface experiments |
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| Authors: | C C Kuranz R P Drake M J Grosskopf H F Robey B A Remington J F Hansen B E Blue J Knauer |
| Institution: | 1. University of Michigan, Ann Arbor, MI, USA 2. Lawrence Livermore National Laboratory, Livermore, CA, USA 3. General Atomics, San Diego, CA, USA 4. University of Rochester, Rochester, NY, USA |
| Abstract: | This paper discusses high-energy-density laboratory astrophysics experiments exploring the Rayleigh-Taylor instability under conditions similar to the blast wave driven, outermost layer in a core-collapse supernova. The planar blast wave is created in an experimental target using the Omega laser. The blast wave crosses an unstable interface with a seed perturbation machined onto it. The perturbation consists of a 3D “egg crate” pattern and, in some cases, an additional longer wavelength mode is added to this 3D, single-mode pattern. The main diagnostic of this experiment is x-ray radiography. This paper explores an image processing technique to improve the identification and characterization of structure in the radiographic data. |
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