[en] High temporal and spatial resolution optical diagnostics of laser performance, energy balance, and applicable plasma probing techniques are reviewed. A variety of spatially, temporally and spectrally resolved x-ray diagnostics techniques and instruments as discussed. Particular emphasis is on high spatial resolution imaging techniques and applications and on high temporal resolution x-ray streak camera applications to exploding pusher target experiments. Finally, particle diagnostics and systems designed to diagnose target performance via yield and temperature measurements and techniques designed to determine the characteristics of compressed targets are discussed