Vendor-based laser damage metrology equipment supporting the National Ignition Facility
A sizable laser damage metrology effort is required as part of optics production and installation for the 192 beam National Ignition Facility (NIF) laser. The large quantities, high damage thresholds, and large apertures of polished and coated optics necessitates vendor-based metrology equipment to assure component quality during production. This equipment must be optimized to provide the required information as rapidly as possible with limited operator experience. The damage metrology tools include: (1) platinum inclusion damage test systems for laser amplifier slabs, (2) laser conditioning stations for mirrors and polarizers, and (3) mapping and damage testing stations for UV transmissive optics. Each system includes a commercial Nd:YAG laser, a translation stage for the optics, and diagnostics to evaluate damage. The scanning parameters, optical layout, and diagnostics vary with the test fluences required and the damage morphologies expected. This paper describes the technical objectives and milestones involved in fulfilling these metrology requirements.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 2760
- Report Number(s):
- UCRL-JC-129719; DP0212000; DP0212000; TRN: US0101302
- Resource Relation:
- Conference: Third Annual International Conference on Solid State Lasers for Application (SSLA) to Inertial Confinement Fusion, Monterey, CA (US), 06/07/1998--06/12/1998; Other Information: PBD: 27 Jul 1998
- Country of Publication:
- United States
- Language:
- English
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