Upgrade of the gated laser entrance hole imager G-LEH-2 on the National Ignition Facility. - Chen, Hui; Golick, B.; Palmer, N.; Carpenter, A.; Claus, L. D.; Dayton, M.; Dean, J.; Durand, C.; Funsten, B.; Petre, R. B.; Hardy, C. M.; Hill, J.; et al. (Review of Scientific Instruments, 2021)