Experimental demonstration of X-ray drive enhancement with rugby-shaped hohlraums

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 D2 and D3He-filled capsules implosions on the Omega laser facility...

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Veröffentlicht in:	Physical review letters 2010-01, Vol.104 (3), p.035004-035004, Article 035004
Hauptverfasser:	Philippe, F, Casner, A, Caillaud, T, Landoas, O, Monteil, M C, Liberatore, S, Park, H S, Amendt, P, Robey, H, Sorce, C, Li, C K, Seguin, F, Rosenberg, M, Petrasso, R, Glebov, V, Stoeckl, C
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY BARYONS CAPSULES CAVITY RESONATORS COMPARATIVE EVALUATIONS CONFINEMENT CONTAINERS DATA DEUTERIUM ELECTROMAGNETIC RADIATION ELECTRONIC EQUIPMENT ELEMENTARY PARTICLES EVALUATION EVEN-ODD NUCLEI EXPERIMENTAL DATA FERMIONS HADRONS HELIUM 3 HELIUM ISOTOPES HYDROGEN ISOTOPES IMPLOSIONS INERTIAL CONFINEMENT INFORMATION IONIZING RADIATIONS ISOTOPES LASERS LIGHT NUCLEI NEUTRONS NUCLEI NUCLEONS NUMERICAL DATA ODD-ODD NUCLEI PLASMA CONFINEMENT PROTON SPECTRA RADIATIONS RESONATORS SPECTRA STABLE ISOTOPES TESTING VALIDATION X RADIATION YIELDS
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Zusammenfassung:	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 D2 and D3He-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 (1.5x10{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.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.104.035004