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Nuclear background effects on plasma diagnostics for megajoule class laser facility

Abstract : Estimating the vulnerability is a key challenge for plasma diagnostics designed to operate in radiative background associated with megajoule class laser facilities. Since DT shots at OMEGA laser facility reproduce the perturbing source expected during the first 100 nanoseconds of a typical DT shot realized at National Ignition Facility (NIF) and Laser MegaJoule facility (LMJ), vulnerability of diagnostic elements such as optical relays or optical analyzers were experimentally studied and, if necessary, hardening approaches have been initiated to authorize their use at higher radiative constraints. Other facilities such as nuclear reactor or accelerator have been also used to estimate vulnerability issues as radiation induced emission of glasses or damage in multilayer coatings.
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Submitted on : Monday, March 30, 2020 - 2:19:49 PM
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A. Rousseau, S. Darbon, P. Paillet, Sylvain Girard, J.L. Bourgade, et al.. Nuclear background effects on plasma diagnostics for megajoule class laser facility. Target Diagnostics Physics and Engineering for Inertial Confinement Fusion II, Aug 2013, San Diego, United States. pp.885004, ⟨10.1117/12.2024005⟩. ⟨ujm-00871773⟩

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