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Your search keyword '"Perry M. Bell"' showing total 3 results
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3 results on '"Perry M. Bell"'

1. A new streaked soft x-ray imager for the National Ignition Facility

Author

Eric M. Gullikson, W. Garbett, Perry M. Bell, Stefan P. Hau-Riege, M. S. Rubery, Christopher G. Bailey, Derek Schmidt, T. M. Guymer, R. Jungquist, Regina Soufli, T. Agliata, M. F. Ahmed, M. Bedzyk, R. L. Hibbard, T. Pardini, John J. L. Morton, J. W. Skidmore, Milton J. Shoup, J. Benstead, Farhad Salmassi, Alastair Moore, S. Reagan, and L. Kot

Subjects
Physics, Photon, Aperture, business.industry, Streak, Photon energy, 01 natural sciences, 010305 fluids & plasmas, Engineering, Optics, Optical coating, Physical Sciences, Chemical Sciences, 0103 physical sciences, Reflection (physics), 010306 general physics, National Ignition Facility, business, Instrumentation, Image resolution, Applied Physics
Abstract

© 2016 Crown. A new streaked soft x-ray imager has been designed for use on high energy-density (HED) physics experiments at the National Ignition Facility based at the Lawrence Livermore National Laboratory. This streaked imager uses a slit aperture, single shallow angle reflection from a nickel mirror, and soft x-ray filtering to, when coupled to one of the NIF's x-ray streak cameras, record a 4× magnification, one-dimensional image of an x-ray source with a spatial resolution of less than 90 μm. The energy band pass produced depends upon the filter material used; for the first qualification shots, vanadium and silver-on-titanium filters were used to gate on photon energy ranges of approximately 300-510 eV and 200-400 eV, respectively. A two-channel version of the snout is available for x-ray sources up to 1 mm and a single-channel is available for larger sources up to 3 mm. Both the one and two-channel variants have been qualified on quartz wire and HED physics target shots.

Published
2016
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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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3. Nuclear background effects on plasma diagnostics for megajoule class laser facility

Author

Aziouz Chabane, Matthieu Hamel, Stéphane Darbon, Jean Larour, J. L. Bourgade, Sylvain Girard, Philippe Paillet, Vincent Goiffon, Melanie Raine, Paola Cervantes, Adrien Rousseau, Pierre Magnan, Olivier Duhamel, 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 Hubert Curien (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), Laboratoire Capteurs et Architectures Electroniques (LCAE), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (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)-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 (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 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Perry M. Bell, Gary P. Grim, Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE), Institut d'optique Graduate School - IOGS (FRANCE), Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE), Université Jean Monnet - St Etienne (FRANCE), Ecole Polytechnique (FRANCE), Université Paris-Sud 11 (FRANCE), Laboratoire Hubert Curien - LAHC (Saint-Etienne, France), Laboratoire de physique des plasmas - LPP (Toulouse, France), Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), 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 d'Intégration des Systèmes et des Technologies (LIST), and 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)

Subjects
Optical relay, optical relay, accelerator, vulnerability, Vulnerability, Laser MegaJoule, Radiation, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, high radiative constraints, law.invention, 010309 optics, laser facility, Optics, law, 0103 physical sciences, Radiative transfer, Physics, plasma diagnostics, 010308 nuclear & particles physics, business.industry, hardening, [SPI.PLASMA]Engineering Sciences [physics]/Plasmas, ICF, Optique / photonique, DT shot, Nuclear reactor, multilayer coating, Laser, radiation, Damage, optical analyzer, Multilayer coatings, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Plasma diagnostics, nuclear reactor, business, National Ignition Facility, damage, Laser Mégajoule
Abstract

International audience; 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.

Published
2013
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