Fig. 1. NIF target chamber^[7-8]

Fig. 2. Main threats faced by first wall and FOA of the target chamber^[2]

Fig. 3. X-ray ablation in different materials in Nova^[17-18]

Fig. 4. Three-dimensional images of ablation morphology on Al-5083 irradiated by different laser energy densities^[19]

Fig. 5. Comparison of ablation morphology under the same power density^[19]

Fig. 6. Ablation morphology of stainless steel under different laser energy densities^[19]

Fig. 7. Relationship between ablation depth (500 pulses) and laser energy density of stainless steel and Al-5083^[19]

Fig. 8. Laser ablation of several materials^[20]

Fig. 9. Personnel dose rate of first wall materials inside the target chamber after a 20-MJ ignition shot following 10 a of 1200-MJ/a yields^[18]

Fig. 10. Dog-legged stainless steel louver^[23]

Fig. 11. Composition of FOA^[10]

Fig. 12. Relationship between metal ion content and laser damage threshold^[68]

Fig. 13. Effects of neutron and gamma irradiations on optical absorption of KDP/DKDP crystal optics^[1]

Fig. 14. LIDT improvement of fused silica in NIF^[98]

Fig. 15. Major optical absorption/luminescence excitation bands and emission bands of defect centers in bulk (top) and surface (bottom) of fused silica^[131]

Fig. 16. PL intensity at 452 nm and O:Si ratio of the silica optic samples as a function of pulse number^[153]

Fig. 17. Optical absorption of fused silica under different (R_O:Si) ^[155]

Fig. 18. Relationship between neutral oxygen-vacancy (NOV) defect concentration and absorption coefficient at 355 nm^[155]

Fig. 19. Absorption coefficients of several SiO₂ materials before and after radiation^[52]

Fig. 20. Radiation damage mechanism of SiO₂ materials^[52]

Fig. 21. Neutrons and γ radiation-induced absorption spectrum of quartz samples

Fig. 22. Predicted transmittance of NIF final focus lens versus time for FS1 and FQ1 fused silica^[52]

Fig. 23. Schematic diagram and related influence factors of laser induced damage in optical thin films and substrates

Fig. 24. Damage morphology of porous silica under different laser energy densities^[9]

Fig. 25. Microscopic observation of damage morphology^[162]

Fig. 26. Damage morphology of acid and alkaline sol-gel films^[166]

Fig. 27. Dynamic process of the gamma irradiation effect on the porous silica surface hydrophobicity

Fig. 28. Coordination number distribution and defect percentage (Si³⁺ and NBO) in porous silica at different porosities before and after neutron irradiation^[181]

Fig. 29. Elastic modulus of the porous silica before and after neutron irradiation plotted as a function of porosity^[181]

Fig. 30. Transmissivity of porous silica with different porosities before and after neutron irradiation

Fig. 31. Thermal conductivities of porous silica with different neutrons and gamma irradiation doses

Fig. 32. Transmissivity of porous silica with different neutron and gamma irradiation doses