Debris and shrapnel assessments for National Ignition Facility targets and diagnostics

High-energy laser experiments at the National Ignition Facility (NIF) can create debris and shrapnel capable of damaging laser optics and diagnostic instruments. The size, composition and location of target components and sacrificial shielding (e.g., disposable debris shields, or diagnostic filters)...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-05, Vol.717 (1), p.12108
Main Authors: Masters, N D, Fisher, A, Kalantar, D, Stölken, J, Smith, C, Vignes, R, Burns, S, Doeppner, T, Kritcher, A, Park, H-S
Format: Article
Language:English
Subjects:
Assessments
Configuration management
Debris
Diagnostic systems
ENGINEERING
Ignition
Laser damage
Physics
Shielding
Shrapnel
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Summary:High-energy laser experiments at the National Ignition Facility (NIF) can create debris and shrapnel capable of damaging laser optics and diagnostic instruments. The size, composition and location of target components and sacrificial shielding (e.g., disposable debris shields, or diagnostic filters) and the protection they provide is constrained by many factors, including: chamber and diagnostic geometries, experimental goals and material considerations. An assessment of the generation, nature and velocity of shrapnel and debris and their potential threats is necessary prior to fielding targets or diagnostics. These assessments may influence target and shielding design, filter configurations and diagnostic selection. This paper will outline the approach used to manage the debris and shrapnel risk associated with NIF targets and diagnostics and present some aspects of two such cases: the Material Strength Rayleigh- Taylor campaign and the Mono Angle Crystal Spectrometer (MACS).
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/717/1/012108