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3 results on '"Laser MegaJoule (LMJ)"'

1. Calculation of prompt doses induced by fusion experiments in Laser MegaJoule facility

Author

Baggio, Jacques, Jacquet, Henri-Patrick, Schneider, Philippe, and Javier, François

Subjects
*NUCLEAR fusion, *NEUTRON flux, *NUMERICAL calculations, *PHYSICS experiments, *PLASMA gases, *FIELD theory (Physics), *LASERS
Abstract

Abstract: The Laser MegaJoule (LMJ), built at CEA/CESTA near Bordeaux, France, will conduct research in the field of plasma physics and inertial confinement fusion. Some of these experiments are designed to produce during less than one nanosecond up to 1019 neutrons at 14MeV in indirect drive mode. The 300m long building that hosts both laser sources and target chamber was designed to confine neutron and gamma fluxes in the experiment hall during a shot. Monte Carlo simulations were performed using a TRIPOLI 4 modelling of the facility to ensure that prompt doses in occupied areas inside the facility that host employees during a shot will be sufficiently low. Although significant radiation levels inside the experiment hall, prompt doses in occupied rooms are limited to a few μSv per shot which is fully compatible with radiation level limits. [Copyright &y& Elsevier]

Published
2011
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2. Development of a hardened imaging system for the Laser MegaJoule

Author

V. A. Smalyuk, Stéphane Darbon, Adrien Rousseau, Grégory Turk, Tony Caillaud, Perry M. Bell, J. L. Bourgade, D. K. Bradley, Ph. Troussel, Jean Larour, Matthieu Hamel, E. Vigne, DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire Capteurs et Architectures Electroniques (LCAE), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique des Plasmas (LPP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Lawrence Livermore National Laboratory (LLNL), Institut Lasers et Plasma, Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Laser MegaJoule (LMJ), detection assembly, Engineering, optical relay, X-ray imager, QC1-999, Mechanical engineering, Context (language use), Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Tritium, 01 natural sciences, 010305 fluids & plasmas, law.invention, Optics, law, 0103 physical sciences, Nuclear fusion, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Inertial confinement fusion, 010302 applied physics, neutron imager, business.industry, Neutron imaging, inertial confinement, Physics, catadioptric relay, Fusion power, Deuterium, Ignition system, scintillator, nuclear, fusion reactor, business, deuterium tritium fusion reaction, Laser Mégajoule
Abstract

Conference of 7th International Conference on Inertial Fusion Sciences and Applications, IFSA 2011 ; Conference Date: 12 September 2011 Through 16 September 2011; International audience; The Laser MegaJoule (LMJ) facility will host inertial confinement fusion experiments in order to achieve ignition by imploding a Deuterium-Tritium microballoon. In this context an X-ray imager is necessary to diagnose the core size and shape of the DT-target in the 10-100 keV band in complement of neutron imaging system. Such a diagnostic will be composed of two parts: an X-ray optical system and a detection assembly. Each element will be affected by the harsh environment created by fusion reactions.

Published
2013
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