A novel emission spectral tomography algorithm based on multiobjective optimization is proposed. Its reconstruction results for asymmetrical emission coefficient fields are studied with computer simulation. The results show that this algorithm provides a significant improvement in reconstruction precision and convergence over traditional algorithms and is suitable for real-time reconstruction of an emission-coefficient field with incomplete data. In an experiment of the argon-arc plasma diagnosis, we adopted this algorithm and the spectrum relative-intensity method to obtain the three-dimensional distributions of temperature, ionization coefficient, and electron (ion) and atom densities.
© 2004 Optical Society of America
(100.3010) Image processing : Image reconstruction techniques
(100.6950) Image processing : Tomographic image processing
(300.2140) Spectroscopy : Emission
(300.6350) Spectroscopy : Spectroscopy, ionization
Xiong Wan, Shenglin Yu, Guiying Cai, Yiqing Gao, and Jianglin Yi, "Three-dimensional plasma field reconstruction with multiobjective optimization emission spectral tomography," J. Opt. Soc. Am. A 21, 1161-1171 (2004)