102 / 2023-04-13 21:03:32

Diagnosis of indirectly driven double shell targets with point-projection hard x-ray radiography

惯性约束聚变物理学 > 驱动器、制靶和诊断-I

We present the application of short pulse laser generated hard x-rays for the diagnosis of indirectly driven double shell targets. Double shell targets were imploded through indirect drive approach on the upgraded SG-II laser facility. Then, based on point-projection hard x-ray radiography technique, time-resolved radiography of the double shell targets, including that near-peak compression, were obtained successfully. The back-lighter source was created by the interactions of a high-intensity short pulsed laser with a metal microwire target. The image of the target near peak compression was obtained with an Au microwire. In addition, radiation hydrodynamic simulations were performed, and evolutions of the targets agree well with the experimental results. Using the radiography images, areal densities of the targets are evaluated.