Plane Ablative Rt Instability Growth Factor Measurements In The Data Processing Technology

In the thesis,the single-mode planar foil ablation experiment on Rayleigh-Taylor(RT) instability is reviewed,in which the physical processes through measurements and data gathering are researched in detail.Through the step-by-step analyses,pertinent techniques on data recovering are put forward,based on which an integrated procedure,including the analyses on measurement uncertainties,is given for deducing the growth factor G from the original experimental data gathered by XSC.Several techniques are put forward in the thesis,including:(1) dividing the signal reconstruction into two processes(denoising and deblurring);(2) denoising based on an overall statistics;(3) a deblurry algorithm for non-noise signal based on maximum likelihood estimation (MLE);(4) non-parametric technique for background fitting;(5) an analysis technics on measurement uncertainties is given based on the nonlinear least squares(NLLS),which resolves almost the entire data analysis subject raised in this kind of experiments.