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Descripción
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| Final optics in HiPER project is based on transmission lenses located 8 m away from the chamber center. The final lens of each beam line must face the target, being exposed to severe irradiation conditions. Silica presents good optical transparency from around 300 nm to the visible band covering the 2nd and 3rd harmonic wavelengths of a typical solid-state laser for fusion energy. In addition, silica presents good radiation resistance and low cost. Therefore, HiPER current proposal is to use silica transmission lenses. In this work, we have studied possible degradation mechanisms of silica during the reactor lifetime for the different HiPER scenarios. We will show that silica final lenses appear to accomplish with the demands imposed by the HiPER experimental facility. In the case of the HiPER power plant when operated with low yield targets (prototype plant) the lenses appear to survive. However, they will not survive with high yield targets (>100 MJ), i.e., demo plant, due to the extreme operation conditions | |
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Internacional
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Si |
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Nombre congreso
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Forum-HiPER |
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Entidad organizadora
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University of Bordeaux I |
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Nacionalidad Entidad
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FRANCIA |
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Lugar/Ciudad de impartición
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Bordeaux (France) |
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Fecha inicio
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02/02/2012 |
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Fecha fin
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03/02/2012 |