Influence Factors in Two-Dimensional Plasma Density Reconstruction

doi:10.19596/j.cnki.1001-246x.7611

Abstract

Abstract: Two-dimensional density distributions of dense plasmas in laser confinement fusion are revealed with proton imaging. Simultaneous iterative reconstruction algorithm (SIRT) is used to study influence factors of two-dimensional plasma density reconstruction. Effects of plasma density gradient, magnitude of density and initial proton energies on reconstruction errors are investigated. Importance of figuring out rough area and range of simulated plasma zone before simulation is analyzed. Furthermore, an analytical expression between reconstruction errors and noises is established through data analyses.

Key words: density distribution, SIRT method, proton imaging, DT plasma

CLC Number:

O536

LI Xuemei, WANG Yuhua. Influence Factors in Two-Dimensional Plasma Density Reconstruction[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2018, 35(2): 187-193.

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