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2D analysis of direct-drive shock-ignited HiPER-like target implosions with the full laser megajoule

Published online by Cambridge University Press:  09 March 2012

B. Canaud ,
S. Laffite ,
V. Brandon  and
M. Temporal
B. Canaud*
Affiliation:
CEA, DAM, DIF, F-91297 Arpajon, France
S. Laffite
Affiliation:
CEA, DAM, DIF, F-91297 Arpajon, France
V. Brandon
Affiliation:
CEA, DAM, DIF, F-91297 Arpajon, France
M. Temporal
Affiliation:
Universidad Politécnica de Madrid, 28040 Madrid, Spain
*
Address correspondence and reprint requests to: B. Canaud, CEA, DAM, DIF, F-91297, Arpajon, France. E-mail: [email protected]
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Abstract

We present a 2D analysis of direct-drive shock ignition for the laser Megajoule. First, a target design is chosen in the HiPER-like target family generated by scale up and down of the original HiPER target. A first analysis is done considering the 1D fuel assembly and 2D shock ignition by means of the ring at polar angle of 33°2. The intensity profile is top-hat and calculations are done for several different radii. It is shown that larger the radius, lower the minimum spike power is. In addition, the intensity in each quad can stay below 4 × 1014 W/cm2 and is considered non crucial for parametric instabilities such as two plasmons. A 2D analysis of the fuel assembly is done in a second step by considering the two rings located at 49° and 59°5 and their symmetric by the equatorial plane symmetry. It is shown that low mode asymmetries are important at the stagnation and can significantly affect the areal density obtained. Finally, full 2D calculations of shock ignition is done, using all the beams of the LMJ and show that the spike power needed for ignition and gain is increased by a factor greater than 3 regarding the power needed in perfectly isotropic fuel assembly. This increase is mainly due to high level low mode asymmetries generated during fuel assembly.

Keywords

Direct-Drive fusionInertial confinement fusionShock Ignition
Type
Research Article
Information
Laser and Particle Beams , Volume 30 , Issue 2 , June 2012 , pp. 183 - 188
Copyright
Copyright © Cambridge University Press 2012

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References

REFERENCES

Atzeni, S. (2009). Laser driven inertial fusion: The physical basis of current and recently proposed ignition experiments. Plasma Phys. Contr. Fusion 51, 124029.CrossRefGoogle Scholar
Betti, R., Zhou, C.D., Anderson, K., Perkins, L.J., Theobald, W. & Solodov, A.A. (2007). Shock ignition of thermonuclear fuel with high areal density. Phys. Rev. Lett. 98, 155001.CrossRefGoogle ScholarPubMed
Buresi, E., Coutant, J. & Dautray, R. (1986). Laser program-development at CEL-V: Overview of recent experimental results. Laser Part. Beam 4, 531.Google Scholar
Canaud, B. & Garaude, F. (2005). Optimization of laser-target coupling efficiency for direct drive laser fusion. Nucl. Fusion 45, L43.CrossRefGoogle Scholar
Canaud, B. & Temporal, M. (2010). High-gain shock ignition of direct-drive ICF targets for the laser megajoule. New J. Phys. 12, 043037.CrossRefGoogle Scholar
Canaud, B., Fortin, X., Dague, N. & Bocher, J.L. (2002). Laser megajoule irradiation uniformity for direct drive. Phys. Plasmas 9, 4252.CrossRefGoogle Scholar
Canaud, B., Fortin, X., Garaude, F., Meyer, C. & Philippe, F. (2004a). Progress in direct-drive fusion studies for the laser megajoule. Laser Part. Beam 22, 109.Google Scholar
Canaud, B., Fortin, X., Garaude, F., Meyer, C., Philippe, F., Temporal, M., Atzeni, S. & Schiavi, A. (2004b). High gain direct-drive target design for the laser megajoule. Nucl. Fusion 44, 1118.CrossRefGoogle Scholar
Canaud, B., Garaude, F., Ballereau, P., Bourgade, J.L., Clique, C., Dureau, D., Houry, M., Jaouen, S., Jourdren, H., Lecler, N., Masse, L., Masson, A., Quach, R., Piron, R., Riz, D., Van der Vliet, J., Temporal, M., Delettrez, J.A. & McKenty, P.W. (2007a). High-gain direct-drive inertial confinement fusion for the laser meajoule: Recent progress. Plasma Phys. Contr. Fusion 49, B601.CrossRefGoogle Scholar
Canaud, B., Garaude, F., Clique, C., Lecler, N., Masson, A., Quach, R. & Van der Vliet, J. (2007b). High-gain direct-drive laser fusion with indirect drive beam layout of laser megajoule. Nucl. Fusion 47, 1652.CrossRefGoogle Scholar
Canaud, B., Lafte, S. & Temporal, M. (2011). Shock ignition of direct-drive double-shell targets. Nucl. Fusion 51, 062001.CrossRefGoogle Scholar
Eliezer, S. & Martinez Val, J.M. (2011). The comeback of shock waves in inertial fusion energy. Laser Part. Beam 29, 175.Google Scholar
Perin, J.P. (2010). Cryogenic systems for LMJ cryotarget and HiPER application. Laser Part. Beam 28, 203.Google Scholar
Schmitt, A.J. (1984). Absolutely uniform illumination of laser fusion pellets. Appl. Phys. Lett. 44, 399.CrossRefGoogle Scholar
Simon, A., Short, R.W., Williams, E.A. & Dewandre, T. (1983). On the inhomogeneous two-plasmon instability. Phys. Fluids 26, 3107.CrossRefGoogle Scholar
Temporal, M & Canaud, B. (2009). Numerical analysis of the irradiation uniformity of a directly driven inertial confinement fusion capsule. Eur. Phys. J. D 55, 139.CrossRefGoogle Scholar
Temporal, M., Canaud, B. & LeGarrec, B.J. (2010). Irradiation uniformity and zooming performances for a capsule directly driven by a 32 × 9 laser beams configuration. Phys. Plasmas 17, 022701.Google Scholar
Temporal, M., Canaud, B., Lafte, S., LeGarrec, B.J. & Murakami, M. (2010). Illumination uniformity of a capsule directly driven by a laser facility with 32 or 48 directions of irradiation. Phys. Plasmas 17, 06504.Google Scholar