【摘要】 提出一种基于多目标优化原理的发射光谱层析 (EST)图像重建新算法MCIRT .通过计算机数值模拟 ,考察了该算法对非对称发射系数场分布的重建效果 .结果表明 ,与传统层析算法相比 ,MCIRT算法具有收敛快 ,重建精度高的优势 ,适合于非完全数据情况下的等离子体发射系数场重建 ,并且实时性更好 .作为一个应用实例 ,运用谱线相对强度法重建了自由电弧等离子体的三维温度及粒子数密度分布更多还原

【Abstract】 A multiobjective optimization based emission spectral tomography algorithm(EST) is proposed. Its reconstruction results for asymmetrical emission coefficient field are studied by numerical simulation with computer. The results show that this algorithm has faster convergences and higher reconstruction precision than that of traditional algorithms and is suitable for real time reconstruction of emission coefficient field with incomplete data. In the experiment of argon arc plasma diagnosis, the three dimensional reconstructions of temperature and atomic (ionic) density fields are accomplished with this algorithm and the spectrum relative intensity method.更多还原