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Proceedings Paper

Vulnerability of optical detection systems to megajoule class laser radiative environment
Author(s): A. Rousseau; S. Darbon; S. Girard; P. Paillet; J. L. Bourgade; V. Goiffon; P. Magnan; V. Lalucaa; M. Hamel; J. Larour
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Paper 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.

Paper Details

Date Published: 9 May 2012
PDF: 7 pages
Proc. SPIE 8439, Optical Sensing and Detection II, 84391F (9 May 2012); doi: 10.1117/12.921883
Show Author Affiliations
A. Rousseau, CEA, DAM, DIF (France)
S. Darbon, CEA, DAM, DIF (France)
S. Girard, CEA, DAM, DIF (France)
P. Paillet, CEA, DAM, DIF (France)
J. L. Bourgade, CEA, DAM, DIF (France)
V. Goiffon, Univ. de Toulouse (France)
P. Magnan, Univ. de Toulouse (France)
V. Lalucaa, Univ. de Toulouse (France)
M. Hamel, CEA, LIST, Lab. Capteurs et Architectures Electroniques (France)
J. Larour, Lab. de Physique des Plasmas, CNRS, Ecole Polytechnique (France)

Published in SPIE Proceedings Vol. 8439:
Optical Sensing and Detection II
Francis Berghmans; Anna Grazia Mignani; Piet De Moor, Editor(s)

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