Related Experiment Video
Updated: May 12, 2026
Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments
Published on: January 28, 2021
Assessment of multi-pulse laser-induced damage threshold of metallic mirrors for Thomson scattering system
Masaya Sato1, Shin Kajita, Ryo Yasuhara
1Department of Engineering and Science, Nagoya University, Nagoya, Aichi, 464-8603, Japan. sato-masaya11@ees.nagoya-u.ac.jp
Abstract:
Multi-pulse laser-induced damage threshold (LIDT) was experimentally investigated up to ~10(6) pulses for Cu, Ag mirrors. The surface roughness and the hardness dependence on the LIDT were also examined. The LIDT of OFHC-Cu decreased with the pulse number and was 1.0 J/cm(2) at 1.8 × 10(6) pulses. The expected LIDT of cutting Ag at 10(7) pulses was the highest; Ag mirror would be one of the best choices for ITER Thomson scattering system. For the roughness and hardness, material dependences of LIDT are discussed with experimental results.
