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9 May 2012 Vulnerability of optical detection systems to megajoule class laser radiative environment
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Abstract
The Laser MegaJoule (LMJ) facility will host inertial confinement fusion experiments in order to achieve ignition by imploding a Deuterium-Tritium filled microballoon [1]. In this context an X-ray imaging system is necessary to diagnose the core size and the shape of the target in the 10-100 keV band. Such a diagnostic will be composed of two parts: an X-ray optical system and a detection assembly. The survivability of each element of this diagnostic has to be ensured within the mixed pulse consisting of X-rays, gamma rays and 14 MeV neutrons created by fusion reactions. The design of this diagnostic will take into account optics and detectors vulnerability to neutron yield of at least 1016. In this work, we will present the main results of our vulnerability studies and of our hardening-by-system and hardening-by- design studies.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Rousseau, S. Darbon, S. Girard, P. Paillet, J. L. Bourgade, V. Goiffon, P. Magnan, V. Lalucaa, M. Hamel, and J. Larour "Vulnerability of optical detection systems to megajoule class laser radiative environment", Proc. SPIE 8439, Optical Sensing and Detection II, 84391F (9 May 2012); https://doi.org/10.1117/12.921883
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