46th International Workshop on High Energy Density Physics with Intense Ion and Laser Beams

The Breit-Wheeler pair production experiment, under the project FOR2783[1], requires laser operation near the damage threshold of the turning mirror. Due to the experiment's inherently low cross section, a high number of laser shots is essential. Consequently, the selection of the mirrors and the geometry must be optimized to maximize shot count without exceeding damage limits. To support this, a laser-induced damage threshold (LIDT) test was performed using the JETi200 laser system on candidate mirrors intended for use in the final setup.

[1] F. C. Salgado et al., New J. Phys. 23, 105002 (2021)