Instruments for best target position determination in the high-intensity laser-solid interaction experiment

Abstract

We review a number of instruments employed in a high-intensity J-KAREN-P laser-solid interaction experiment and discuss the applicability of the diagnostics to the best target position determination with a ~10 µm accuracy, while the focal spot size was ~1 µm and peak intensity was up to 7×10 21 W/cm 2 . We discuss both front-and back-side diagnostics, some of them operated in the infrared, visible and ultraviolet ranges, while others in the extreme ultraviolet, soft X-ray and gamma-ray ranges. We found that the applicability of some of the instruments to the best at-focus target position determination depends on the thickness of the target.