Compressive Sensing for the Symmetry Distribution Analysis of Thermal Radiation on the Capsule inside a Cylindrical Hohlraum

Abstract:

The symmetric implosion of the pellet is very important in an inertial confinement fusion (ICF) system. The evaluation of symmetric distribution on the ICF pellet is time and memory consuming, especially when the elements of cylindrical hohlraums are iteratively subdivided. A novel compressive sensing (CS) based approach is presented in this paper to accurately valuate the distribution symmetry with much less computation. The core idea is that, the thermal radiation distribution is transformed in the spherical harmonic field, and the sparsity of spherical harmonics is accurately evaluated through CS approach. Finally, experiments are demonstrated to show higher efficiency of the proposed approach.

• Periodical: Advanced Materials Research (Volumes 317-319)
• Pages: 511-515
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.317-319.511
• Online since: August 2011
• Authors: Yun Bao Huang, Zi Rong Zeng, Shao En Jiang, Qi Fu Wang, Li Ping Chen
• Keywords: Compressive Sensing (CS), Inertial Confinement Fusion, Spherical Harmonics, View Factor Method

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