A maximum a posteriori reconstruction method for plasma tomography

摘要: Computed tomography is a powerful tool for plasma diagnostics. Unfortunately, viewing access in many experiments strongly limited, which leads to highly underdetermined ill-posed problem. A maximum posteriori (MAP) algorithm promising statistical approach this In paper, we study the MAP yields most probable image estimate from limited and noisy data. An adaptive chi-square criterion proposed control quality of reconstruction. improvement reconstruction over conventional tomographic methods, such as algebraic technique entropy algorithm, illustrated by several numerical examples.