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43 results on '"Landoas O."'

1. The neutrons for science facility at SPIRAL-2

Author

Ledoux X., Aïche M., Avrigeanu M., Avrigeanu V., Balanzat E., Ban-d'Etat B., Ban G., Bauge E., Bélier G., Bém P., Borcea C., Caillaud T., Chatillon A., Czajkowski S., Dessagne P., Doré D., Fischer U., Frégeau M.O., Grinyer J., Guillous S., Gunsing F., Gustavsson C., Henning G., Jacquot B., Jansson K., Jurado B., Kerveno M., Klix A., Landoas O., Lecolley F.R., Lecouey J.L., Majerle M., Marie N., Materna T., Mrázek J., Negoita F., Novák J., Oberstedt S., Oberstedt A., Panebianco S., Perrot L., Plompen A.J.M., Pomp S., Prokofiev A.V., Ramillon J.M., Farget F., Ridikas D., Rossé B., Sérot O., Simakov S.P., Šimečková E., Štefánik M., Sublet J.C., Taïeb J., Tarrío D., Tassan-Got L., Thfoin I., and Varignon C.

Subjects
Physics, QC1-999
Abstract

Numerous domains, in fundamental research as well as in applications, require the study of reactions induced by neutrons with energies from few MeV up to few tens of MeV. Reliable measurements also are necessary to improve the evaluated databases used by nuclear transport codes. This energy range covers a large number of topics like transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors. A new facility called Neutrons For Science (NFS) is being built for this purpose on the GANIL site at Caen (France). NFS is composed of a pulsed neutron beam for time-of-flight facility as well as irradiation stations for cross-section measurements. Neutrons will be produced by the interaction of deuteron and proton beams, delivered by the SPIRAL-2 linear accelerator, with thick or thin converters made of beryllium or lithium. Continuous and quasi-mono-energetic spectra will be available at NFS up to 40 MeV. In this fast energy region, the neutron flux is expected to be up to 2 orders of magnitude higher than at other existing time-of-flight facilities. In addition, irradiation stations for neutron-, proton- and deuteron-induced reactions will allow performing cross-section measurements by the activation technique. After a description of the facility and its characteristics, the experiments to be performed in the short and medium term will be presented.

Published
2017
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2. Experimental capabilities of the LMJ-PETAL facility

Author

Cayzac, W., Boutoux, G., Brygoo, S., Denoeud, A., Depierreux, S., Tassin, V., Albert, F., Alozy, E., Baccou, C., Batani, D., Blanchot, N., Bonneau, M., Bonnefille, M., Botrel, R., Bowen, C., Bradford, P., Brochier, M., Caillaud, T., Chaleil, A., Chardavoine, S., Chollet, C., Courtois, C., Darbon, S., Davoine, X., Debesset, S., Denis, V., Diaz, R., Dizière, A., Du Jeu, R., Duchastenier, W., Dupré, P., Duval, A., Esnault, C., Etchessahar, B., Ferri, M., Fuchs, J., Geoffray, I., Gremillet, L., Grolleau, A., D’Humières, E., Jalinaud, T., Laffite, S., Lafon, M., Lagache, M.A., Landoas, O., Lantuejoul, I., Le-Deroff, L., Le Tacon, S., Leidinger, J.P., Lelièvre, R., Liberatore, S., Mahieu, B., Masson-Laborde, P.E., Meyer, C., Miquel, J.L., Parreault, R., Philippe, F., Prévot, V., Prunet, P., Raphaël, O., Reverdin, C., Ribotte, L., Riquier, R., Rousseaux, C., Sary, G., Soullié, G., Sozet, M., Ta-Phuoc, K., Trela, J., Trauchessec, V., Vaisseau, X., Vauzour, B., Villette, B., and Lefebvre, E.

Published
2024
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3. Progress of LMJ-relevant implosions experiments on OMEGA

Author

Casner A., Philippe F., Tassin V., Seytor P., Monteil M.-C., Gauthier P., Park H.S., Robey H., Ross J., Amendt P., Girard F., Villette B., Reverdin C., Loiseau P., Caillaud T., Landoas O., Li C.K., Petrasso R., Seguin F., Rosenberg M., and Renaudin P.

Subjects
Physics, QC1-999
Abstract

In preparation of the first ignition attempts on the Laser Mégajoule (LMJ), an experimental program is being pursued on OMEGA to investigate LMJ-relevant hohlraums. First, radiation temperature levels close to 300 eV were recently achieved in reduced-scale hohlraums with modest backscatter losses. Regarding the baseline target design for fusion experiments on LMJ, an extensive experimental database has also been collected for scaled implosions experiments in both empty and gas-filled rugby-shaped hohlraums. We acquired a full picture of hohlraum energetics and implosion dynamics. Not only did the rugby hohlraums show significantly higher x-ray drive energy over the cylindrical hohlraums, but symmetry control by power balance was demonstrated, as well as high-performance D2 implosions enabling the use of a complete suite of neutrons diagnostics. Charged particle diagnostics provide complementary insights into the physics of these x-ray driven implosions. An overview of these results demonstrates our ability to control the key parameters driving the implosion, lending more confidence in extrapolations to ignition-scale targets.

Published
2013
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4. First indirect drive inertial confinement fusion campaign at Laser Megajoule

Author

Liberatore, S., primary, Gauthier, P., additional, Willien, J. L., additional, Masson-Laborde, P. E., additional, Philippe, F., additional, Poujade, O., additional, Alozy, E., additional, Botrel, R., additional, Boutoux, G., additional, Bray, J., additional, Caillaud, T., additional, Chicanne, C., additional, Chollet, C., additional, Debayle, A., additional, Depierreux, S., additional, Duchastenier, W., additional, Ferri, M., additional, Henry, O., additional, Hoch, P., additional, Laffite, S., additional, Landoas, O., additional, Le-Deroff, L., additional, Lefebvre, E., additional, Legay, G., additional, Marmajou, I., additional, Meyer, C., additional, Molina, K., additional, Morice, O., additional, Peche, E., additional, Prunet, P., additional, Riquier, R., additional, Rosch, R., additional, Tassin, V., additional, Vaisseau, X., additional, and Villette, B., additional

Published
2023
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5. Experimental Evidence of a Variant Neutron Spectrum from the $T(t,2n)\alpha$ Reaction at Center-of-Mass Energies in the Range of 16--50 keV

Author

Gatu Johnson, M., Forrest, C.J., Sayre, D.B., Bacher, A., Bourgade, J.L., Brune, C.R., Caggiano, J.A., Casey, D.T., Frenje, J.A., Glebov, V.Yu., Hale, G.M., Hatarik, R., Herrmann, H.W., Janezic, R., Kim, Y.H., Knauer, J.P., Landoas, O., McNabb, D.P., Paris, M.W., Petrasso, R.D., Pino, J.E., Quaglioni, S., Rosse, B., Sanchez, J., Sangster, T.C., Sio, H., Shmayda, W., Stoeckl, C., Thompson, I., Zylstra, A.B., Direction des Applications Militaires (DAM), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; Full calculations of six-nucleon reactions with a three-body final state have been elusive and a long-standing issue. We present neutron spectra from the T(t,2n)α (TT) reaction measured in inertial confinement fusion experiments at the OMEGA laser facility at ion temperatures from 4 to 18 keV, corresponding to center-of-mass energies (Ec.m.) from 16 to 50 keV. A clear difference in the shape of the TT-neutron spectrum is observed between the two Ec.m., with the He5 ground state resonant peak at 8.6 MeV being significantly stronger at the higher than at the lower energy. The data provide the first conclusive evidence of a variant TT-neutron spectrum in this Ec.m. range. In contrast to earlier available data, this indicates a reaction mechanism that must involve resonances and/or higher angular momenta than L=0. This finding provides an important experimental constraint on theoretical efforts that explore this and complementary six-nucleon systems, such as the solar He3(He3,2p)α reaction.

Published
2018

6. The Neutrons for Science Facility at SPIRAL-2

Author

Ledoux, X., Aiche, M., Avrigeanu, M., Avrigeanu, V., Balanzat, E., Ban-d'Etat, B., Ban, G., Bauge, E., Belier, G., Bem, P., Borcea, C., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Dore, D., Fischer, U., Fregeau, M. O., Grinyer, J., Guillous, S., Gunsing, F., Gustavsson, Cecilia, Henning, G., Jacquot, B., Jansson, Kaj, Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F. R., Lecouey, J. L., Majerle, M., Marie, N., Materna, T., Mrazek, J., Novak, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A. J. M., Pomp, Stephan, Prokofiev, Alexander, Ramillon, J. M., Farget, F., Ridikas, D., Rosse, B., Serot, O., Simakov, S. P., Simeckova, E., Stanoiu, M., Stefanik, M., Sublet, J. C., Taieb, J., Tarrio, Diego, Tassan-Got, L., Thfoin, I., Varignon, C., Ledoux, X., Aiche, M., Avrigeanu, M., Avrigeanu, V., Balanzat, E., Ban-d'Etat, B., Ban, G., Bauge, E., Belier, G., Bem, P., Borcea, C., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Dore, D., Fischer, U., Fregeau, M. O., Grinyer, J., Guillous, S., Gunsing, F., Gustavsson, Cecilia, Henning, G., Jacquot, B., Jansson, Kaj, Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F. R., Lecouey, J. L., Majerle, M., Marie, N., Materna, T., Mrazek, J., Novak, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A. J. M., Pomp, Stephan, Prokofiev, Alexander, Ramillon, J. M., Farget, F., Ridikas, D., Rosse, B., Serot, O., Simakov, S. P., Simeckova, E., Stanoiu, M., Stefanik, M., Sublet, J. C., Taieb, J., Tarrio, Diego, Tassan-Got, L., Thfoin, I., and Varignon, C.

Abstract

The neutrons for science (NFS) facility is a component of SPIRAL-2, the new superconducting linear accelerator built at GANIL in Caen (France). The proton and deuteron beams delivered by the accelerator will allow producing intense neutron fields in the 100 keV-40 MeV energy range. Continuous and quasi-mono-kinetic energy spectra, respectively, will be available at NFS, produced by the interaction of a deuteron beam on a thick Be converter and by the Li-7(p, n) reaction on thin converter. The pulsed neutron beam, with a flux up to two orders of magnitude higher than those of other existing time-of-flight facilities, will open new opportunities of experiments in fundamental research as well as in nuclear data measurements. In addition to the neutron beam, irradiation stations for neutron-, proton- and deuteron-induced reactions will be available for cross-sections measurements and for the irradiation of electronic devices or biological cells. NFS, whose first experiment is foreseen in 2018, will be a very powerful tool for physics, fundamental research as well as applications like the transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors.

Published
2018
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8. Experimental Evidence of a Variant Neutron Spectrum from the T(t,2n)α Reaction at Center-of-Mass Energies in the Range of 16–50 keV

Author

Gatu Johnson, M., primary, Forrest, C. J., additional, Sayre, D. B., additional, Bacher, A., additional, Bourgade, J.-L., additional, Brune, C. R., additional, Caggiano, J. A., additional, Casey, D. T., additional, Frenje, J. A., additional, Glebov, V. Yu., additional, Hale, G. M., additional, Hatarik, R., additional, Herrmann, H. W., additional, Janezic, R., additional, Kim, Y. H., additional, Knauer, J. P., additional, Landoas, O., additional, McNabb, D. P., additional, Paris, M. W., additional, Petrasso, R. D., additional, Pino, J. E., additional, Quaglioni, S., additional, Rosse, B., additional, Sanchez, J., additional, Sangster, T. C., additional, Sio, H., additional, Shmayda, W., additional, Stoeckl, C., additional, Thompson, I., additional, and Zylstra, A. B., additional

Published
2018
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9. The neutrons for science facility at SPIRAL-2

Author

Ledoux, X., Aïche, M., Avrigeanu, M., Avrigeanu, V., Balanzat, E., Ban-d'Etat, B., Ban, G., Bauge, E., Bélier, G., Bém, P., Borcea, C., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Doré, D., Fischer, U., Frégeau, M. O., Grinyer, J., Guillous, S., Gunsing, F., Gustavsson, Cecilia, Henning, G., Jacquot, B., Jansson, Kaj, Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F. R., Lecouey, J. L., Majerle, M., Marie, N., Materna, T., Mrázek, J., Negoita, F., Novák, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A. J. M., Pomp, Stephan, Prokofiev, Alexander, Ramillon, J. M., Farget, F., Ridikas, D., Rossé, B., Sérot, O., Simakov, S. P., Šimečková, E., Štefánik, M., Sublet, J. C., Taïeb, J., Tarrío, Diego, Tassan-Got, L., Thfoin, I., Varignon, C., Ledoux, X., Aïche, M., Avrigeanu, M., Avrigeanu, V., Balanzat, E., Ban-d'Etat, B., Ban, G., Bauge, E., Bélier, G., Bém, P., Borcea, C., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Doré, D., Fischer, U., Frégeau, M. O., Grinyer, J., Guillous, S., Gunsing, F., Gustavsson, Cecilia, Henning, G., Jacquot, B., Jansson, Kaj, Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F. R., Lecouey, J. L., Majerle, M., Marie, N., Materna, T., Mrázek, J., Negoita, F., Novák, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A. J. M., Pomp, Stephan, Prokofiev, Alexander, Ramillon, J. M., Farget, F., Ridikas, D., Rossé, B., Sérot, O., Simakov, S. P., Šimečková, E., Štefánik, M., Sublet, J. C., Taïeb, J., Tarrío, Diego, Tassan-Got, L., Thfoin, I., and Varignon, C.

Abstract

Numerous domains, in fundamental research as well as in applications, require the study of reactions induced by neutrons with energies from few MeV up to few tens of MeV. Reliable measurements also are necessary to improve the evaluated databases used by nuclear transport codes. This energy range covers a large number of topics like transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors. A new facility called Neutrons For Science (NFS) is being built for this purpose on the GANIL site at Caen (France). NFS is composed of a pulsed neutron beam for time-of-flight facility as well as irradiation stations for cross-section measurements. Neutrons will be produced by the interaction of deuteron and proton beams, delivered by the SPIRAL-2 linear accelerator, with thick or thin converters made of beryllium or lithium. Continuous and quasi-mono-energetic spectra will be available at NFS up to 40 MeV. In this fast energy region, the neutron flux is expected to be up to 2 orders of magnitude higher than at other existing time-of-flight facilities. In addition, irradiation stations for neutron-, proton- and deuteron-induced reactions will allow performing cross-section measurements by the activation technique. After a description of the facility and its characteristics, the experiments to be performed in the short and medium term will be presented.

Published
2017
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10. The Neutrons for Science Facility at SPIRAL-2

Author

Ledoux, X, primary, Aïche, M, additional, Avrigeanu, M, additional, Avrigeanu, V, additional, Balanzat, E, additional, Ban-d’Etat, B, additional, Ban, G, additional, Bauge, E, additional, Bélier, G, additional, Bém, P, additional, Borcea, C, additional, Caillaud, T, additional, Chatillon, A, additional, Czajkowski, S, additional, Dessagne, P, additional, Doré, D, additional, Fischer, U, additional, Frégeau, M O, additional, Grinyer, J, additional, Guillous, S, additional, Gunsing, F, additional, Gustavsson, C, additional, Henning, G, additional, Jacquot, B, additional, Jansson, K, additional, Jurado, B, additional, Kerveno, M, additional, Klix, A, additional, Landoas, O, additional, Lecolley, F R, additional, Lecouey, J L, additional, Majerle, M, additional, Marie, N, additional, Materna, T, additional, Mrázek, J, additional, Novák, J, additional, Oberstedt, S, additional, Oberstedt, A, additional, Panebianco, S, additional, Perrot, L, additional, Plompen, A J M, additional, Pomp, S, additional, Prokofiev, A V, additional, Ramillon, J M, additional, Farget, F, additional, Ridikas, D, additional, Rossé, B, additional, Serot, O, additional, Simakov, S P, additional, Šimečková, E, additional, Stanoiu, M, additional, Štefánik, M, additional, Sublet, J C, additional, Taïeb, J, additional, Tarrío, D, additional, Tassan-Got, L, additional, Thfoin, I, additional, and Varignon, C, additional

Published
2017
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11. Development of an inertial confinement fusion platform to study charged-particle-producing nuclear reactions relevant to nuclear astrophysics

Author

Gatu Johnson, M., primary, Zylstra, A. B., additional, Bacher, A., additional, Brune, C. R., additional, Casey, D. T., additional, Forrest, C., additional, Herrmann, H. W., additional, Hohenberger, M., additional, Sayre, D. B., additional, Bionta, R. M., additional, Bourgade, J.-L., additional, Caggiano, J. A., additional, Cerjan, C., additional, Craxton, R. S., additional, Dearborn, D., additional, Farrell, M., additional, Frenje, J. A., additional, Garcia, E. M., additional, Glebov, V. Yu., additional, Hale, G., additional, Hartouni, E. P., additional, Hatarik, R., additional, Hohensee, M., additional, Holunga, D. M., additional, Hoppe, M., additional, Janezic, R., additional, Khan, S. F., additional, Kilkenny, J. D., additional, Kim, Y. H., additional, Knauer, J. P., additional, Kohut, T. R., additional, Lahmann, B., additional, Landoas, O., additional, Li, C. K., additional, Marshall, F. J., additional, Masse, L., additional, McEvoy, A., additional, McKenty, P., additional, McNabb, D. P., additional, Nikroo, A., additional, Parham, T. G., additional, Paris, M., additional, Petrasso, R. D., additional, Pino, J., additional, Radha, P. B., additional, Remington, B., additional, Rinderknecht, H. G., additional, Robey, H., additional, Rosenberg, M. J., additional, Rosse, B., additional, Rubery, M., additional, Sangster, T. C., additional, Sanchez, J., additional, Schmitt, M., additional, Schoff, M., additional, Séguin, F. H., additional, Seka, W., additional, Sio, H., additional, Stoeckl, C., additional, and Tipton, R. E., additional

Published
2017
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12. The Neutrons for Science Facility at SPIRAL-2

Author

Ledoux, X., Aïche, M., Avrigeanu, M., Avrigeanu, V., Audouin, L., Balanzat, E., Ban-détat, B., Ban, G., Barreau, G., Bauge, E., Bélier, G., Bem, P., Blideanu, V., Borcea, C., Bouffard, S., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Doré, D., Fallot, M., Farget, F., Fischer, U., Giot, L., Granier, T., Guillous, S., Gunsing, F., Gustavsson, C., Jacquot, B., Jansson, K., Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F.R., Lecouey, J.L., Majerle, M., Marie, N., Materna, T., Mrazek, J., Negoita, F., Novak, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A.J.M., Pomp, S., Ramillon, J.M., Ridikas, D., Rossé, B., Rudolf, G., Serot, O., Simakov, S.P., Simeckova, E., Smith, A.G., Sublet, J.C., Taieb, J., Tassan-Got, L., Tarrio, D., Takibayev, A., Thfoin, I., Tsekhanovich, I., and Varignon, C.

Published
2014
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13. Recent advance in target diagnostics on the Laser MégaJoule (LMJ)

Author

Caillaud, T., additional, Alozy, E., additional, Briat, M., additional, Cornet, P., additional, Darbon, S., additional, Dizière, A., additional, Duval, A., additional, Drouet, V., additional, Fariaut, J., additional, Gontier, D., additional, Landoas, O., additional, Marchet, B., additional, Masclet-Gobain, I., additional, Oudot, G., additional, Soullié, G., additional, Stemmler, P., additional, Reverdin, C., additional, Rosch, R., additional, Rousseau, A., additional, Rossé, B., additional, Rubbelynck, C., additional, Troussel, P., additional, Villette, B., additional, Aubard, F., additional, Huelvan, S., additional, Maroni, R., additional, Llavador, P., additional, Allouche, V., additional, Burillo, M., additional, Chollet, C., additional, D'Hose, C., additional, Prat, B., additional, Trosseille, C., additional, Raimbourg, J., additional, Zuber, C., additional, Lebreton, J. P., additional, Perez, S., additional, Ulmer, J. L., additional, Jalinaud, T., additional, Jadaud, J. P., additional, Bourgade, J. L., additional, Wrobel, R., additional, Rogue, X., additional, and Miquel, J. L., additional

Published
2016
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14. Time history prediction of direct-drive implosions on the Omega facility

Author

Laffite, S., primary, Bourgade, J. L., additional, Caillaud, T., additional, Delettrez, J. A., additional, Frenje, J. A., additional, Girard, F., additional, Glebov, V. Yu., additional, Joshi, T., additional, Landoas, O., additional, Legay, G., additional, Lemaire, S., additional, Mancini, R. C., additional, Marshall, F. J., additional, Masse, L., additional, Masson-Laborde, P. E., additional, Michel, D. T., additional, Philippe, F., additional, Reverdin, C., additional, Seka, W., additional, and Tassin, V., additional

Published
2016
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15. Report on the detection and acquisition systems at NFS

Author

Ledoux, X., Eric Bauge, Belier, G., Caillaud, T., Chatillon, A., Granier, T., Landoas, O., Taïeb, J., Rossé, B., Thfoin, I., Varignon, C., Blideanu, V., Doré, D., Gunsing, F., Panebianco, S., Ridikas, D., Takibayev, A., Aïche, M., Barreau, G., Czajkowski, S., Jurado, B., Ban, G., Lecolley, F. R., Lecolley, J. F., Lecouey, J. L., Nathalie Marie, Steckmeyer, J. C., Dessagne, P., Kerveno, M., Rudolf, G., Bem, P., Majerle, M., Mrazek, J., Novak, J., Simeckova, E., Gustavsson, C., Pomp, S., Fischer, U., Klix, K., Simakov, S. P., Jacquot, B., Farget, F., Wieleczko, J. P., Perrot, L., Tassan-Got, L., Avrigeanu, M., Avrigeanu, V., Borcea, C., Negoita, F., Petrascu, M., Oberstedt, S., Plompen, A. J. M., Muriel Fallot, Lydie Giot, Smith, G., Tsekhanovich, I., Olivier Serot, Balanzat, E., Ban-D État, B., Guillous, S., Ramillon, J. M., Oberstedt, A., Sublet, J. C., 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), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Aval du cycle et Energie Nucléaire (ACEN), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), and Normandie Université (NU)

Subjects
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2012

16. Effect of the plasma density scale length on the properties of Brehmsstrahlung X-ray sources created by picosecond laser pulses and radioprotection issues for petawatt lasers

Author

Courtois, Christian, Compant La Fontaine, A., Landoas, O., Lefebvre, E., Lidove, G., Méot, V., Morel, Pierre, Nuter, R., Boscheron, A., Grenier, J., M. Aléonard, M., Gerbaux, M., Gobet, F., Hannachi, F., Malka, G., N. Scheurer, J., Tarisien, M., Mas, Virginie, 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), Centre d'études scientifiques et techniques d'Aquitaine (CESTA), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2008

17. Characteristics of Bremsstrahlung x-ray sources created by picosecond laser pulses and radioprotection issues for petawatt lasers

Author

Compant La Fontaine, A., Courtois, Christian, Landoas, O., Lidove, G., Méot, V., Morel, Pierre, Nuter, R., Lefebvre, E., Boscheron, A., Grenier, J., Aléonard, M.M., Claverie, G., Gerbaux, M., Gobet, F., Hannachi, F., Malka, G., Scheurer, J.N., Tarisien, M., Mas, Virginie, 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), Centre d'études scientifiques et techniques d'Aquitaine (CESTA), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; Previous experimental and numerical results have shown that in multi-MeV Bremsstrahlung x-ray sources created by picosecond laser pulses, the delivered on-axis dose increases if the laser interacts with under-critical plasmas. The effect of the laser-plasma interaction as a function of the plasma density gradient is thus first studied here, by focusing the short pulse of the Alisé laser on a solid tantalum target coated with plastic. Interaction conditions are modified by irradiating the target front side with a secondary nanosecond heating beam, prior to the main pulse. The length of the expanding plasma is modified by adjusting the delay between the interaction and heating beams. Various diagnostics give access to a whole set of consistent experimental results on the x-ray source properties which are compared successfully to self-consistent numerical simulations obtained with coupled PIC and Monte Carlo codes. All source parameters increase as the plasma length increases, in reason of the increasing number of high-energy electrons near the axis. In a second part of this talk, we use our simulation tools to predict the x-ray and neutron (produced by photonuclear interactions in the target) flash characteristics that can be expected on future PW lasers. Favourable scaling laws for the production of an intense, directional and short duration x-ray source versus intensity are observed. However, these findings also stress that radioprotection will become an important issue for future petawatt lasers operating at the kJ level.

Published
2008

19. Experimental Demonstration of X-Ray Drive Enhancement with Rugby-Shaped Hohlraums

Author

Massachusetts Institute of Technology. Plasma Science and Fusion Center, Petrasso, Richard D., Li, C. K., Seguin, Fredrick Hampton, Rosenberg, Michael Jonathan, Philippe, F., Casner, A., Caillaud, T., Landoas, O., Monteil, M. C., Liberatore, S., Park, H. S., Amendt, P., Robey, H., Sorce, C., Glebov, V. Yu., Stoeckl, C., Massachusetts Institute of Technology. Plasma Science and Fusion Center, Petrasso, Richard D., Li, C. K., Seguin, Fredrick Hampton, Rosenberg, Michael Jonathan, Philippe, F., Casner, A., Caillaud, T., Landoas, O., Monteil, M. C., Liberatore, S., Park, H. S., Amendt, P., Robey, H., Sorce, C., Glebov, V. Yu., and Stoeckl, C.

Abstract

Rugby-shaped hohlraums have been suggested as a way to enhance x-ray drive in the indirect drive approach to inertial confinement fusion. This Letter presents an experimental comparison of rugby-shaped and cylinder hohlraums used for D[subscript 2] and D[superscript 3]He-filled capsules implosions on the Omega laser facility, demonstrating an increase of x-ray flux by 18% in rugby-shaped hohlraums. The highest yields to date for deuterium gas implosions in indirect drive on Omega (1.5×10[superscript 10] neutrons) were obtained, allowing for the first time the measurement of a DD burn history. Proton spectra measurements provide additional validation of the higher drive in rugby-shaped hohlraums.

Published
2010

20. Characterisation of a MeV Bremsstrahlung x-ray source produced from a high intensity laser for high areal density object radiography

Author

Courtois, C., primary, Edwards, R., additional, Compant La Fontaine, A., additional, Aedy, C., additional, Bazzoli, S., additional, Bourgade, J. L., additional, Gazave, J., additional, Lagrange, J. M., additional, Landoas, O., additional, Dain, L. Le, additional, Mastrosimone, D., additional, Pichoff, N., additional, Pien, G., additional, and Stoeckl, C., additional

Published
2013
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21. A new compact, high sensitivity neutron imaging system

Author

Caillaud, T., primary, Landoas, O., additional, Briat, M., additional, Rossé, B., additional, Thfoin, I., additional, Philippe, F., additional, Casner, A., additional, Bourgade, J. L., additional, Disdier, L., additional, Glebov, V. Yu., additional, Marshall, F. J., additional, Sangster, T. C., additional, Park, H. S., additional, Robey, H. F., additional, and Amendt, P., additional

Published
2012
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23. High-resolution multi-MeV x-ray radiography using relativistic laser-solid interaction

Author

Courtois, C., primary, Edwards, R., additional, Compant La Fontaine, A., additional, Aedy, C., additional, Barbotin, M., additional, Bazzoli, S., additional, Biddle, L., additional, Brebion, D., additional, Bourgade, J. L., additional, Drew, D., additional, Fox, M., additional, Gardner, M., additional, Gazave, J., additional, Lagrange, J. M., additional, Landoas, O., additional, Le Dain, L., additional, Lefebvre, E., additional, Mastrosimone, D., additional, Pichoff, N., additional, Pien, G., additional, Ramsay, M., additional, Simons, A., additional, Sircombe, N., additional, Stoeckl, C., additional, and Thorp, K., additional

Published
2011
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24. The Neutrons for Science Facility at SPIRAL-2

Author

Ledoux, X., primary, Aïche, M., additional, Avrigeanu, M., additional, Avrigeanu, V., additional, Audouin, L., additional, Balanzat, E., additional, Ban-d'Etat, B., additional, Ban, G., additional, Barreau, G., additional, Bauge, E., additional, Bélier, G., additional, Bem, P., additional, Blideanu, V., additional, Blomgren, J., additional, Borcea, C., additional, Bouffard, S., additional, Caillaud, T., additional, Chatillon, A., additional, Czajkowski, S., additional, Dessagne, P., additional, Doré, D., additional, Fallot, M., additional, Farget, F., additional, Fischer, U., additional, Giot, L., additional, Granier, T., additional, Guillous, S., additional, Gunsing, F., additional, Gustavsson, C., additional, Herber, S., additional, Jacquot, B., additional, Jurado, B., additional, Kerveno, M., additional, Klix, A., additional, Landoas, O., additional, Lecolley, F. R., additional, Lecolley, J. F., additional, Lecouey, J. L., additional, Majerle, M., additional, Marie, N., additional, Materna, T., additional, Mrazek, J., additional, Negoita, F., additional, Novak, J., additional, Oberstedt, S., additional, Oberstedt, A., additional, Panebianco, S., additional, Perrot, L., additional, Petrascu, M., additional, Plompen, A. J. M., additional, Pomp, S., additional, Ramillon, J. M., additional, Ridikas, D., additional, Rossé, B., additional, Rudolf, G., additional, Serot, O., additional, Shcherbakov, O., additional, Simakov, S. P., additional, Simeckova, E., additional, Smith, A. G., additional, Steckmeyer, J. C., additional, Sublet, J. C., additional, Taïeb, J., additional, Tassan-Got, L., additional, Takibayev, A., additional, Tungborn, E., additional, Thfoin, I., additional, Tsekhanovich, I., additional, Varignon, C., additional, Wieleczko, J. P., additional, Hamm, Marianne E., additional, and Hamm, Robert W., additional

Published
2011
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25. The National Ignition Facility neutron time-of-flight system and its initial performance (invited)

Author

Glebov, V. Yu., primary, Sangster, T. C., additional, Stoeckl, C., additional, Knauer, J. P., additional, Theobald, W., additional, Marshall, K. L., additional, Shoup, M. J., additional, Buczek, T., additional, Cruz, M., additional, Duffy, T., additional, Romanofsky, M., additional, Fox, M., additional, Pruyne, A., additional, Moran, M. J., additional, Lerche, R. A., additional, McNaney, J., additional, Kilkenny, J. D., additional, Eckart, M. J., additional, Schneider, D., additional, Munro, D., additional, Stoeffl, W., additional, Zacharias, R., additional, Haslam, J. J., additional, Clancy, T., additional, Yeoman, M., additional, Warwas, D., additional, Horsfield, C. J., additional, Bourgade, J.-L., additional, Landoas, O., additional, Disdier, L., additional, Chandler, G. A., additional, and Leeper, R. J., additional

Published
2010
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26. Relativistic Quasimonoenergetic Positron Jets from Intense Laser-Solid Interactions

Author

Chen, Hui, primary, Wilks, S. C., additional, Meyerhofer, D. D., additional, Bonlie, J., additional, Chen, C. D., additional, Chen, S. N., additional, Courtois, C., additional, Elberson, L., additional, Gregori, G., additional, Kruer, W., additional, Landoas, O., additional, Mithen, J., additional, Myatt, J., additional, Murphy, C. D., additional, Nilson, P., additional, Price, D., additional, Schneider, M., additional, Shepherd, R., additional, Stoeckl, C., additional, Tabak, M., additional, Tommasini, R., additional, and Beiersdorfer, P., additional

Published
2010
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27. High performance capsule implosions on the OMEGA Laser facility with rugby hohlraums

Author

Robey, H. F., primary, Amendt, P., additional, Park, H.-S., additional, Town, R. P. J., additional, Milovich, J. L., additional, Döppner, T., additional, Hinkel, D. E., additional, Wallace, R., additional, Sorce, C., additional, Strozzi, D. J., additional, Philippe, F., additional, Casner, A., additional, Caillaud, T., additional, Landoas, O., additional, Liberatore, S., additional, Monteil, M.-C., additional, Séguin, F., additional, Rosenberg, M., additional, Li, C. K., additional, Petrasso, R., additional, Glebov, V., additional, Stoeckl, C., additional, Nikroo, A., additional, and Giraldez, E., additional

Published
2010
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28. Experimental Demonstration of X-Ray Drive Enhancement with Rugby-Shaped Hohlraums

Author

Philippe, F., primary, Casner, A., additional, Caillaud, T., additional, Landoas, O., additional, Monteil, M. C., additional, Liberatore, S., additional, Park, H. S., additional, Amendt, P., additional, Robey, H., additional, Sorce, C., additional, Li, C. K., additional, Seguin, F., additional, Rosenberg, M., additional, Petrasso, R., additional, Glebov, V., additional, and Stoeckl, C., additional

Published
2010
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31. Effect of plasma density scale length on the properties of bremsstrahlung x-ray sources created by picosecond laser pulses

Author

Courtois, C., primary, Compant La Fontaine, A., additional, Landoas, O., additional, Lidove, G., additional, Méot, V., additional, Morel, P., additional, Nuter, R., additional, Lefebvre, E., additional, Boscheron, A., additional, Grenier, J., additional, Aléonard, M. M., additional, Gerbaux, M., additional, Gobet, F., additional, Hannachi, F., additional, Malka, G., additional, Scheurer, J. N., additional, and Tarisien, M., additional

Published
2009
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32. Diagnostics hardening for harsh environment in Laser Mégajoule (invited)

Author

Bourgade, J. L., primary, Marmoret, R., additional, Darbon, S., additional, Rosch, R., additional, Troussel, P., additional, Villette, B., additional, Glebov, V., additional, Shmayda, W. T., additional, Gomme, J. C., additional, Le Tonqueze, Y., additional, Aubard, F., additional, Baggio, J., additional, Bazzoli, S., additional, Bonneau, F., additional, Boutin, J. Y., additional, Caillaud, T., additional, Chollet, C., additional, Combis, P., additional, Disdier, L., additional, Gazave, J., additional, Girard, S., additional, Gontier, D., additional, Jaanimagi, P., additional, Jacquet, H. P., additional, Jadaud, J. P., additional, Landoas, O., additional, Legendre, J., additional, Leray, J. L., additional, Maroni, R., additional, Meyerhofer, D. D., additional, Miquel, J. L., additional, Marshall, F. J., additional, Masclet-Gobin, I., additional, Pien, G., additional, Raimbourg, J., additional, Reverdin, C., additional, Richard, A., additional, Rubin de Cervens, D., additional, Sangster, C. T., additional, Seaux, J. P., additional, Soullie, G., additional, Stoeckl, C., additional, Thfoin, I., additional, Videau, L., additional, and Zuber, C., additional

Published
2008
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34. Nearfield behaviour of clay barriers and their interaction with concrete Task 3 characterization of radioactive waste forms a series of final reports (1985-89) No 26

Author

Atabek, Rosemarie, Béziat, Alain, Coulon, Hervé, Dardaine, Michel, Eglem, Arlette, Farcy, C., Fontan, Nathalie, Gatabin, C, P, Gegout, Alain, Lajudie, Landoas, O., Léchelle, Jacques, Plas, Frédéric, Raynal, Joel, Revertegat, Eliane, Debrabant, Pierre, Proust, Dominique, Commissariat à l'Energie Atomique (CEA-Fontenay aux Roses), Centre National de la Recherche Scientifique (CNRS), Département Géosciences [Université de Poitiers], Université de Poitiers, and Commission of the European Communities, Luxembourg (Luxembourg)

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power
Published
1991

35. Development of nuclear diagnostics for the National Ignition Facility (invited)

Author

Glebov, V. Yu., primary, Meyerhofer, D. D., additional, Sangster, T. C., additional, Stoeckl, C., additional, Roberts, S., additional, Barrera, C. A., additional, Celeste, J. R., additional, Cerjan, C. J., additional, Dauffy, L. S., additional, Eder, D. C., additional, Griffith, R. L., additional, Haan, S. W., additional, Hammel, B. A., additional, Hatchett, S. P., additional, Izumi, N., additional, Kimbrough, J. R., additional, Koch, J. A., additional, Landen, O. L., additional, Lerche, R. A., additional, MacGowan, B. J., additional, Moran, M. J., additional, Ng, E. W., additional, Phillips, T. W., additional, Song, P. M., additional, Tommasini, R., additional, Young, B. K., additional, Caldwell, S. E., additional, Grim, G. P., additional, Evans, S. C., additional, Mack, J. M., additional, Sedillo, T. J., additional, Wilke, M. D., additional, Wilson, D. C., additional, Young, C. S., additional, Casey, D., additional, Frenje, J. A., additional, Li, C. K., additional, Petrasso, R. D., additional, Séguin, F. H., additional, Bourgade, J. L., additional, Disdier, L., additional, Houry, M., additional, Lantuejoul, I., additional, Landoas, O., additional, Chandler, G. A., additional, Cooper, G. W., additional, Leeper, R. J., additional, Olson, R. E., additional, Ruiz, C. L., additional, Sweeney, M. A., additional, Padalino, S. P., additional, Horsfield, C., additional, and Davis, B. A., additional

Published
2006
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36. Neutron imaging at the NIF

Author

Grim, G. P., primary, Barnes, C. W., additional, Bradley, P. A., additional, Christensen, C. R., additional, Hauer, A., additional, Morgan, G. L., additional, Oertel, J. A., additional, Wilke, M. D., additional, Wilson, D. C., additional, Barrera, C., additional, Haan, S. W., additional, Hammel, B. A., additional, Koch, J. A., additional, Lerche, R. A., additional, Moran, M. J., additional, Glebov, V. L., additional, Sangster, T. C., additional, Bourgade, J.-L., additional, Disdier, L., additional, Lantuejoul, I., additional, and Landoas, O., additional

Published
2006
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37. Inertial confinement fusion neutron images

Author

Disdier, L., primary, Rouyer, A., additional, Lantuéjoul, I., additional, Landoas, O., additional, Bourgade, J. L., additional, Sangster, T. C., additional, Glebov, V. Yu., additional, and Lerche, R. A., additional

Published
2006
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38. Electron and photon production from relativistic laser–plasma interactions

Author

Lefebvre, E, primary, Cochet, N, additional, Fritzler, S, additional, Malka, V, additional, Al onard, M.-M, additional, Chemin, J.-F, additional, Darbon, S, additional, Disdier, L, additional, Faure, J, additional, Fedotoff, A, additional, Landoas, O, additional, Malka, G, additional, M ot, V, additional, Morel, P, additional, Gloahec, M. Rabec Le, additional, Rouyer, A, additional, Rubbelynck, Ch, additional, Tikhonchuk, V, additional, Wrobel, R, additional, Audebert, P, additional, and Rousseaux, C, additional

Published
2003
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39. The neutrons for science facility at SPIRAL-2

Author

Ledoux, X., Aïche, M., Avrigeanu, M., Avrigeanu, V., Balanzat, E., Ban-D’Etat, B., Ban, G., Bauge, E., Bélier, G., Bém, P., Borcea, C., Caillaud, T., Chatillon, A., Czajkowski, S., Dessagne, P., Doré, D., Fischer, U., Frégeau, M. O., Grinyer, J., Guillous, S., Gunsing, F., Gustavsson, C., Henning, G., Jacquot, B., Jansson, K., Jurado, B., Kerveno, M., Klix, A., Landoas, O., Lecolley, F. R., Lecouey, J. L., Majerle, M., Marie, N., Materna, T., Mrázek, J., Negoita, F., Novák, J., Oberstedt, S., Oberstedt, A., Panebianco, S., Perrot, L., Plompen, A. J. M., Pomp, S., Prokofiev, A. V., Ramillon, J. M., Farget, F., Ridikas, D., Rossé, B., Sérot, O., Simakov, S. P., Šimečková, E., Štefánik, M., Sublet, J. C., Taïeb, J., Tarrío, D., Tassan-Got, L., Thfoin, I., and Varignon, C.

Subjects
7. Clean energy

40. Recent advance in target diagnostics on the Laser MégaJoule (LMJ)

Author

Koch, Jeffrey A., Grim, Gary P., Caillaud, T., Alozy, E., Briat, M., Cornet, P., Darbon, S., Dizière, A., Duval, A., Drouet, V., Fariaut, J., Gontier, D., Landoas, O., Marchet, B., Masclet-Gobain, I., Oudot, G., Soullié, G., Stemmler, P., Reverdin, C., Rosch, R., Rousseau, A., Rossé, B., Rubbelynck, C., Troussel, P., Villette, B., Aubard, F., Huelvan, S., Maroni, R., Llavador, P., Allouche, V., Burillo, M., Chollet, C., D'Hose, C., Prat, B., Trosseille, C., Raimbourg, J., Zuber, C., Lebreton, J. P., Perez, S., Ulmer, J. L., Jalinaud, T., Jadaud, J. P., Bourgade, J. L., Wrobel, R., Rogue, X., and Miquel, J. L.

Published
2016
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41. The Neutrons for Science Facility at SPIRAL-2.

Author

Ledoux X, Aïche M, Avrigeanu M, Avrigeanu V, Balanzat E, Ban-d'Etat B, Ban G, Bauge E, Bélier G, Bém P, Borcea C, Caillaud T, Chatillon A, Czajkowski S, Dessagne P, Doré D, Fischer U, Frégeau MO, Grinyer J, Guillous S, Gunsing F, Gustavsson C, Henning G, Jacquot B, Jansson K, Jurado B, Kerveno M, Klix A, Landoas O, Lecolley FR, Lecouey JL, Majerle M, Marie N, Materna T, Mrázek J, Novák J, Oberstedt S, Oberstedt A, Panebianco S, Perrot L, Plompen AJM, Pomp S, Prokofiev AV, Ramillon JM, Farget F, Ridikas D, Rossé B, Serot O, Simakov SP, Šimecková E, Stanoiu M, Štefánik M, Sublet JC, Taïeb J, Tarrío D, Tassan-Got L, Thfoin I, and Varignon C

Subjects
Computer Simulation, Radiation Dosage, Deuterium analysis, Equipment Design, Lithium chemistry, Neutrons, Particle Accelerators instrumentation, Protons
Abstract

The neutrons for science (NFS) facility is a component of SPIRAL-2, the new superconducting linear accelerator built at GANIL in Caen (France). The proton and deuteron beams delivered by the accelerator will allow producing intense neutron fields in the 100 keV-40 MeV energy range. Continuous and quasi-mono-kinetic energy spectra, respectively, will be available at NFS, produced by the interaction of a deuteron beam on a thick Be converter and by the 7Li(p,n) reaction on thin converter. The pulsed neutron beam, with a flux up to two orders of magnitude higher than those of other existing time-of-flight facilities, will open new opportunities of experiments in fundamental research as well as in nuclear data measurements. In addition to the neutron beam, irradiation stations for neutron-, proton- and deuteron-induced reactions will be available for cross-sections measurements and for the irradiation of electronic devices or biological cells. NFS, whose first experiment is foreseen in 2018, will be a very powerful tool for physics, fundamental research as well as applications like the transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors.

Published
2018
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42. Absolute calibration method for laser megajoule neutron yield measurement by activation diagnostics.

Author

Landoas O, Glebov VY, Rossé B, Briat M, Disdier L, Sangster TC, Duffy T, Marmouget JG, Varignon C, Ledoux X, Caillaud T, Thfoin I, and Bourgade JL

Abstract

The laser megajoule (LMJ) and the National Ignition Facility (NIF) plan to demonstrate thermonuclear ignition using inertial confinement fusion (ICF). The neutron yield is one of the most important parameters to characterize ICF experiment performance. For decades, the activation diagnostic was chosen as a reference at ICF facilities and is now planned to be the first nuclear diagnostic on LMJ, measuring both 2.45 MeV and 14.1 MeV neutron yields. Challenges for the activation diagnostic development are absolute calibration, accuracy, range requirement, and harsh environment. At this time, copper and zirconium material are identified for 14.1 MeV neutron yield measurement and indium material for 2.45 MeV neutrons. A series of calibrations were performed at Commissariat à l'Energie Atomique (CEA) on a Van de Graff facility to determine activation diagnostics efficiencies and to compare them with results from calculations. The CEA copper activation diagnostic was tested on the OMEGA facility during DT implosion. Experiments showed that CEA and Laboratory for Laser Energetics (LLE) diagnostics agree to better than 1% on the neutron yield measurement, with an independent calibration for each system. Also, experimental sensitivities are in good agreement with simulations and allow us to scale activation diagnostics for the LMJ measurement range.

Published
2011
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43. Alignment effects on a neutron imaging system using coded apertures.

Author

Thfoin I, Landoas O, Caillaud T, Disdier L, Vincent M, Bourgade JL, Rossé B, Sangster TC, Glebov VY, Pien G, and Armstrong W

Abstract

A high resolution neutron imaging system is being developed and tested on the OMEGA laser facility for inertial confinement fusion experiments. This diagnostic uses a coded imaging technique with a penumbral or an annular aperture. The sensitiveness of these techniques to misalignment was pointed out with both experiments and simulations. Results obtained during OMEGA shots are in good agreement with calculations performed with the Monte Carlo code GEANT4. Both techniques are sensitive to the relative position of the source in the field of view. The penumbral imaging technique then demonstrates to be less sensitive to misalignment compared to the ring. These results show the necessity to develop a neutron imaging diagnostic for megajoule class lasers taking into account our alignment capabilities on such facilities.

Published
2010
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