Observatorio de I+D+i UPM

Memorias de investigación
Courses, Seminars and tutorials:
Silica final lenses subject to HiPER direct irradiation
Year:2012
Research Areas
  • Physics - Structure of materials,
  • Physics - Radiation physics,
  • Physics - Instrumentation and data analysis
Information
Abstract
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
International
Si
Congress
Forum-HiPER
Entity
University of Bordeaux I
Entity Nationality
FRANCIA
Place
Bordeaux (France)
Start Date
02/02/2012
End Date
03/02/2012
Participants
  • Autor: Nuria Gordillo Garcia (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Departamento: Ingeniería Nuclear
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
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