Real time correction of angle drift in ICF driver target area

A correction model for angle drift in target area is established through ray-tracing target area light path of ICF (inertial confinement fusion) driver. The angle drift of target area light path will be measured in real time in each target shooting experiment. The data will be entered into angle drift correction model. The adjustment for the last two servo mirrors will be calculated and the correction of angle drift of these mirrors for the next target shooting will be modified. Its results are that the ratio of angular deviation to correction error is larger than 1. In 8 sets of experiments, the average of angular deviation is reduced by a factor of 7.3, minimal correction error is 0.009 degree, and mean correction error is 0.02 degree.