Driver-chamber interface: lasers
- Radiation damage to the final focusing system is a key issue in a laser-driven IFE power plant.
- A detailed, 3-D model of Sombrero was developed to calculate neutron and g-ray fluences and doses in the focusing mirrors and final optical components
- Variations of model created for open solid-angle fractions of 0.25% (from published report) and 5% (increased to maximum that might be needed for DPSSL driver)
- Grazing incidence metal mirrors (GIMMs), used as the final optical components in the original report, were replaced with transmissive fused silica wedges